vm/entry_points.o \
vm/errors.o \
vm/factor.o \
- vm/format.o \
vm/full_collector.o \
vm/gc.o \
vm/image.o \
! Should be enough for anyone, allows to not do a fancy
! algorithm to detect infinite decimals (e.g 1/3)
: ss.SSSSSS ( timestamp -- )
- second>> >float "0" 9 6 "f" "C" format-float write ;
+ second>> >float "0" 9 6 "f" "C" format-float* write ;
: hhmm ( timestamp -- ) [ hh ] [ mm ] bi ;
io io.streams.string kernel math math.functions math.parser
multiline namespaces peg.ebnf present prettyprint quotations
sequences sequences.generalizations splitting strings unicode ;
-FROM: math.parser.private => format-float ;
+FROM: math.parser.private => format-float* ;
IN: formatting
ERROR: unknown-format-directive value ;
] keepd neg? [ CHAR: - prefix ] when ;
: format-float-fast ( x digits string -- string )
- [ "" -1 ] 2dip "C" format-float ;
+ [ "" -1 ] 2dip "C" format-float* ;
: format-fast-scientific? ( x digits -- x' digits ? )
over float? [ t ]
] if ;
: format-scientific ( x digits -- string )
- format-fast-scientific? [
- [ "e" format-float-fast ]
- [ [ ".0e" "e" replace ] [ drop ] if-zero ] bi
- ] [ format-scientific-simple ] if ;
+ format-fast-scientific?
+ [ "e" format-float-fast ] [ format-scientific-simple ] if ;
: format-fast-decimal? ( x digits -- x' digits ? )
over float? [ t ]
] if ; inline
: format-decimal ( x digits -- string )
- format-fast-decimal? [
- [ "f" format-float-fast ]
- [ [ ".0" ?tail drop ] [ drop ] if-zero ] bi
- ] [ format-decimal-simple ] if ;
+ format-fast-decimal?
+ [ "f" format-float-fast ] [ format-decimal-simple ] if ;
EBNF: parse-printf [=[
{ -1.0e-12 } [ "-1.0e-12" string>number ] unit-test
-{ t }
-[ "-1.0e-12" string>number number>string { "-1.0e-12" "-1.0e-012" } member? ]
+{ "-0.000000000001" }
+[ "-1.0e-12" string>number number>string ]
unit-test
{ f }
! Missing locale
{ "" } [
- 33.4 "" 4 4 "f" "missing" format-float
+ 33.4 "" 4 4 "f" "missing" format-float*
] unit-test
! Literal byte arrays are mutable, so (format-float) isn't foldable.
{ "143.99999999999997" } [ 0x1.1ffffffffffffp7 number>string ] unit-test
{ "144.0" } [ 0x1.2p7 number>string ] unit-test
{ "144.00000000000003" } [ 0x1.2000000000001p7 number>string ] unit-test
+
+{ 0x80000000000000000000000000000000 } [ 0 φ ] unit-test
+
+{
+ ! edgecases
+ { 20 0 "1e-322" }
+ { 1 0 "5e-324" }
+ { 0x000fffffffffffff 0 "2.225073858507201e-308" }
+ { 0 1 "2.2250738585072014e-308" }
+ { 1 1 "2.225073858507202e-308" }
+ { 0x000fffffffffffff 1 "4.4501477170144023e-308" }
+ { 0 2 "4.450147717014403e-308" }
+ { 1 2 "4.450147717014404e-308" }
+ { 0 4 "1.7800590868057611e-307" }
+ { 0 5 "3.5601181736115222e-307" }
+ { 0 6 "7.120236347223045e-307" }
+ { 0 10 "1.1392378155556871e-305" }
+ { 0x000ffffffffffffe 2046 "1.7976931348623155e308" }
+ { 0x000fffffffffffff 2046 "1.7976931348623157e308" }
+
+ ! stress tests, < 1/2 ulp
+ { 4007430392905160 733 "9.5e-88" }
+ { 698388779696245 251 "4.65e-233" }
+ { 1903293320899403 1312 "1.415e87" }
+ { 3927554571361996 1147 "3.9815e37" }
+ { 1971449568774091 1174 "4.10405e45" }
+ { 3770707915602346 1801 "2.920845e234" }
+ { 877465856894836 619 "2.8919465e-122" }
+ { 2258128958129238 18 "4.37877185e-303" }
+ { 3472938851240260 1451 "1.227701635e129" }
+ { 1478804231587571 1452 "1.8415524525e129" }
+ { 1033395563260341 1168 "5.48357443505e43" }
+ { 2721851261911698 1785 "3.891901811465e229" }
+ { 2721851261911698 1784 "1.9459509057325e229" }
+ { 4199773113776883 1192 "1.44609583816055e51" }
+ { 4440663047904721 74 "4.173677474585315e-286" }
+ { 2956204068717196 368 "1.1079507728788885e-197" }
+ { 1576869389299883 694 "1.234550136632744e-99" }
+ { 3881915519664261 1796 "9.25031711960365e232" }
+ { 3010617184019290 247 "4.19804715028489e-234" }
+ { 3893698175890015 730 "1.1716315319786511e-88" }
+ { 2229859611940047 1277 "4.328100728446125e76" }
+ { 3587850959922298 602 "3.317710118160031e-127" }
+
+ ! stress tests, > 1/2 ulp
+ { 2063659254706906 2027 "2.5e302" }
+ { 2209131796074438 1610 "7.55e176" }
+ { 2209131796074438 1609 "3.775e176" }
+ { 794805784202541 118 "4.3495e-273" }
+ { 633711540289011 931 "2.30365e-28" }
+ { 2218681082291372 1438 "1.263005e125" }
+ { 840836770664431 906 "7.1422105e-36" }
+ { 3865523976906785 222 "1.39345735e-241" }
+ { 4492222481117167 295 "1.414634485e-219" }
+ { 4439233208194286 692 "4.5392779195e-100" }
+ { 4439233208194286 691 "2.26963895975e-100" }
+ { 4439233208194286 690 "1.134819479875e-100" }
+ { 2462349842116650 826 "7.7003665618895e-60" }
+ { 2462349842116650 825 "3.85018328094475e-60" }
+ { 2462349842116650 824 "1.925091640472375e-60" }
+ { 2983653093616330 1623 "6.8985865317742005e180" }
+ { 1088518052258015 1239 "1.3076622631878654e65" }
+ { 4383455621985292 1740 "1.3605202075612124e216" }
+ { 2490587845261953 1765 "3.5928102174759597e223" }
+ { 4293976951641647 1663 "8.912519771248455e192" }
+ { 2859727106134841 1347 "5.5876975736230114e97" }
+ { 4045897783924006 627 "1.1762578307285404e-119" }
+} [| tuple |
+ tuple first3 :> ( F E str )
+ { str } [ "" F E dragonbox general-format ] unit-test
+] each
+
+{
+ ! regression tests
+ { 1.5745340942675811e257 "1.574534094267581e257" }
+ { 1.6521200219181297e-180 "1.6521200219181297e-180" }
+ { 4.6663180925160944e-302 "4.6663180925160944e-302" }
+ { 2.0919495182368195e19 "2.0919495182368195e19" }
+ { 2.6760179287532483e19 "2.6760179287532483e19" }
+ { 3.2942957306323907e19 "3.2942957306323907e19" }
+ { 3.9702293349085635e19 "3.9702293349085635e19" }
+ { 4.0647939013152195e19 "4.0647939013152195e19" }
+ { 1.8014398509481984e16 "1.8014398509481984e16" }
+ { 1.8014398509481985e16 "1.8014398509481984e16" }
+
+ ! rounding tests
+ { 1.00000000000000005 "1.0" }
+ { 1.00000000000000015 "1.0000000000000002" }
+ { 1.99999999999999985 "1.9999999999999998" }
+ { 1.99999999999999995 "2.0" }
+ { 1125899906842623.75 "1125899906842623.8" }
+ { 1125899906842624.25 "1125899906842624.2" }
+ { 562949953421312.25 "562949953421312.2" }
+ { 2.20781707763671875 "2.2078170776367188" }
+ { 1.81835174560546875 "1.8183517456054688" }
+ { 3.94171905517578125 "3.9417190551757812" }
+ { 3.73860931396484375 "3.7386093139648438" }
+ { 3.96773529052734375 "3.9677352905273438" }
+ { 1.32802581787109375 "1.3280258178710938" }
+ { 3.92096710205078125 "3.9209671020507812" }
+ { 1.01523590087890625 "1.0152359008789062" }
+ { 1.33522796630859375 "1.3352279663085938" }
+ { 1.34452056884765625 "1.3445205688476562" }
+ { 2.87912750244140625 "2.8791275024414062" }
+ { 3.69583892822265625 "3.6958389282226562" }
+ { 1.84534454345703125 "1.8453445434570312" }
+ { 3.79395294189453125 "3.7939529418945312" }
+ { 3.21140289306640625 "3.2114028930664062" }
+ { 2.56597137451171875 "2.5659713745117188" }
+ { 0.96515655517578125 "0.9651565551757812" }
+ { 2.70000457763671875 "2.7000045776367188" }
+ { 0.76709747314453125 "0.7670974731445312" }
+ { 1.78044891357421875 "1.7804489135742188" }
+ { 2.62483978271484375 "2.6248397827148438" }
+ { 1.30529022216796875 "1.3052902221679688" }
+ { 3.83492279052734375 "3.8349227905273438" }
+
+ ! integer tests
+ { 1.0 "1.0" }
+ { 10.0 "10.0" }
+ { 100.0 "100.0" }
+ { 1000.0 "1000.0" }
+ { 10000.0 "10000.0" }
+ { 100000.0 "100000.0" }
+ { 1000000.0 "1000000.0" }
+ { 10000000.0 "10000000.0" }
+ { 100000000.0 "100000000.0" }
+ { 1000000000.0 "1000000000.0" }
+ { 10000000000.0 "10000000000.0" }
+ { 100000000000.0 "100000000000.0" }
+ { 1000000000000.0 "1000000000000.0" }
+ { 10000000000000.0 "10000000000000.0" }
+ { 100000000000000.0 "100000000000000.0" }
+ { 1000000000000000.0 "1000000000000000.0" }
+ { 9007199254740000.0 "9007199254740000.0" }
+ { 9007199254740992.0 "9007199254740992.0" }
+ { 1e22 "1e22" }
+ { 1e23 "1e23" }
+} [| tuple |
+ tuple first2 :> ( n str )
+ { str } [ n format-float ] unit-test
+] each
+
+{
+ ! regression tests
+ 6.1734402962680736e199
+ 2.4400113864427797e-153
+ 5.2632699518024996e199
+ 5.0806205262434145e252
+ 6.7785205636751565e118
+ 1.1240911411101675e-251
+ 8.139240250313929e194
+ 4.8614002257993364e178
+ 2.752696193128505e129
+ 3.1770556126883376e-271
+ 2.242759017628732e-248
+ 1.7802970329193148e-77
+ 3.806109028477244e187
+ 1.1848198569896827e213
+ 2.9391656381652973e-100
+ 6.424228912347e278
+ 1.2645752114230544e236
+ 8.42515920555967e-234
+ 2.7329003323103567e46
+ 1.3794281777002848e132
+ 1.7142202471499735e280
+ 9.634269789762257e200
+ 8.083700236068939e-82
+ 1.5588992945750237e163
+ 1.0074862449311154e-133
+ 3.1674528983750413e156
+ 1.8663368017075642e168
+ 2.7789467828287196e-24
+ 1.3816831617696479e116
+ 8.197561614832019e-114
+ 1.7020441232782313e-247
+ 4.1401971003386077e-194
+ 1.5769408597238478e-194
+ 3.3471805328331117e299
+ 5.529329422375565e-66
+ 1.6103234499457023e-135
+ 2.9198565218330256e-280
+ 8.038156131293134e163
+ 1.3920716328733164e-171
+ 6.827324062276435e-27
+ 8.807592735347699e-71
+ 3.3728552641313123e-123
+ 2.4122679021903798e236
+ 8.266944620606866e-263
+ 2.7137385859318285e105
+ 1.863720230324117e232
+ 7.972905225864674e-54
+ 2.2844314792315022e125
+ 9.70790738880233e-169
+ 1.2665834799024419e44
+ 3.3484409434495807e284
+ 1.3582268200372764e84
+ 3.4534664118884534e-136
+ 9.035819340849007e181
+ 2.0437259151405597e174
+ 9.859326049199017e-251
+ 1.3201219024272826e162
+ 1.3893748715780833e65
+ 6.447847606411378e49
+ 5.465125341473931e80
+} [| n |
+ { n } [ n format-float dec> ] unit-test
+] each
+
+{
+ ! regression tests
+ 0x38FB2D4A60898DAB
+ 0x453F265980DCB674
+ 0x0A4FB5016FF839C0
+ 0x38F1C98B4F73D69C
+ 0x1F8D0A0A25B8C46D
+ 0x4361B4CCC78673FD
+ 0x43C3F516F5C2AE90
+ 0x4386C73EFAE567DA
+ 0x471F25D5F53ACB9B
+ 0x459AF3D7E7CDDDFF
+ 0x465D1C534CC2368F
+ 0x455FCEB5B44D932F
+ 0x45B5C534DA985042
+} [| n |
+ { n } [ n bits>double format-float dec> double>bits ]
+ unit-test
+] each
! Copyright (C) 2009 Joe Groff, 2013 John Benediktsson
! See https://factorcode.org/license.txt for BSD license.
USING: accessors byte-arrays combinators kernel kernel.private
-layouts make math math.private sbufs sequences sequences.private
-strings ;
+layouts make math math.order math.private sbufs sequences
+sequences.private strings ;
IN: math.parser
<PRIVATE
<PRIVATE
-: (fix-float) ( str-no-exponent -- newstr )
- CHAR: . over member? [ ".0" append ] unless ; inline
-
-: fix-float ( str exponent-char -- newstr )
- over index [
- cut [ (fix-float) ] dip append
- ] [ (fix-float) ] if* ; inline
-
: mantissa-expt-normalize ( mantissa expt -- mantissa' expt' )
[ dup log2 52 swap - [ shift 52 2^ 1 - bitand ] [ 1022 + neg ] bi ]
[ 1023 - ] if-zero ;
-: mantissa-expt ( float -- mantissa expt )
+: (mantissa-expt) ( bits -- mantissa expt )
[ 52 2^ 1 - bitand ]
- [ -0.0 double>bits bitnot bitand -52 shift ] bi
- mantissa-expt-normalize ;
+ [ -0.0 double>bits bitnot bitand -52 shift ] bi ; inline
+
+: mantissa-expt ( bits -- mantissa expt )
+ (mantissa-expt) mantissa-expt-normalize ;
-: bin-float-sign ( bits -- str )
- -0.0 double>bits bitand zero? "" "-" ? ;
+: float-sign ( bits -- str ) 63 bit? "-" "" ? ; inline
: bin-float-value ( str size -- str' )
CHAR: 0 pad-head [ CHAR: 0 = ] trim-tail
: float>bin-value ( mantissa -- str )
>bin 52 bin-float-value ;
-: bin-float-expt ( mantissa -- str )
+: bin-float-expt ( exponent -- str )
10 >base "p" prepend ;
: (bin-float>base) ( value-quot n -- str )
double>bits
- [ bin-float-sign swap ] [
+ [ float-sign swap ] [
mantissa-expt rot [ bin-float-expt ] bi*
] bi 3append ; inline
: format-string ( format -- format )
0 suffix >byte-array ; foldable
-: format-float ( n fill width precision format locale -- string )
- [
- [ format-string ] 4dip [ format-string ] bi@ (format-float)
- >string
+: format-float* ( n fill width precision format locale -- string )
+ [ format-string ] 4dip
+ [ format-string ] bi@
+ (format-float) >string ; inline
+
+! Dragonbox algorithm
+
+: ⌊nlog10_2⌋ ( n -- m ) 315653 * -20 shift ; inline
+
+: ⌊nlog2_10⌋ ( n -- m ) 1741647 * -19 shift ; inline
+
+: 1000/ ( n -- m ) 2361183241434822607 * -71 shift ; inline
+
+: ⌊nlog10_2-log10_4/3⌋ ( n -- m )
+ 631305 * 261663 - -21 shift ; inline
+
+: 100/mod ( n -- t ρ≠0? )
+ 656 * [ -16 shift ] [ 16 2^ 1 - bitand 656 >= ] bi ; inline
+
+: >double< ( n -- s F E )
+ double>bits [ float-sign ] [ (mantissa-expt) ] bi ; inline
+
+: mantissa-expt-normalize* ( F E -- F' E' )
+ [ -1022 ] [ [ 52 2^ bitor ] [ 1023 - ] bi* ] if-zero
+ 52 - ; inline
+
+: shorter-interval? ( F E -- ? )
+ [ zero? ] [ 1 > ] bi* and ; inline
+
+: k ( E -- k ) ⌊nlog10_2⌋ neg 2 + ; inline
+
+CONSTANT: lookup-table {
+0xc795830d75038c1dd59df5b9ef6a2418 0xf97ae3d0d2446f254b0573286b44ad1e
+0x9becce62836ac5774ee367f9430aec33 0xc2e801fb244576d5229c41f793cda740
+0xf3a20279ed56d48a6b43527578c11110 0x9845418c345644d6830a13896b78aaaa
+0xbe5691ef416bd60c23cc986bc656d554 0xedec366b11c6cb8f2cbfbe86b7ec8aa9
+0x94b3a202eb1c3f397bf7d71432f3d6aa 0xb9e08a83a5e34f07daf5ccd93fb0cc54
+0xe858ad248f5c22c9d1b3400f8f9cff69 0x91376c36d99995be23100809b9c21fa2
+0xb58547448ffffb2dabd40a0c2832a78b 0xe2e69915b3fff9f916c90c8f323f516d
+0x8dd01fad907ffc3bae3da7d97f6792e4 0xb1442798f49ffb4a99cd11cfdf41779d
+0xdd95317f31c7fa1d40405643d711d584 0x8a7d3eef7f1cfc52482835ea666b2573
+0xad1c8eab5ee43b66da3243650005eed0 0xd863b256369d4a4090bed43e40076a83
+0x873e4f75e2224e685a7744a6e804a292 0xa90de3535aaae202711515d0a205cb37
+0xd3515c2831559a830d5a5b44ca873e04 0x8412d9991ed58091e858790afe9486c3
+0xa5178fff668ae0b6626e974dbe39a873 0xce5d73ff402d98e3fb0a3d212dc81290
+0x80fa687f881c7f8e7ce66634bc9d0b9a 0xa139029f6a239f721c1fffc1ebc44e81
+0xc987434744ac874ea327ffb266b56221 0xfbe9141915d7a9224bf1ff9f0062baa9
+0x9d71ac8fada6c9b56f773fc3603db4aa 0xc4ce17b399107c22cb550fb4384d21d4
+0xf6019da07f549b2b7e2a53a146606a49 0x99c102844f94e0fb2eda7444cbfc426e
+0xc0314325637a1939fa911155fefb5309 0xf03d93eebc589f88793555ab7eba27cb
+0x96267c7535b763b54bc1558b2f3458df 0xbbb01b9283253ca29eb1aaedfb016f17
+0xea9c227723ee8bcb465e15a979c1cadd 0x92a1958a7675175f0bfacd89ec191eca
+0xb749faed14125d36cef980ec671f667c 0xe51c79a85916f48482b7e12780e7401b
+0x8f31cc0937ae58d2d1b2ecb8b0908811 0xb2fe3f0b8599ef07861fa7e6dcb4aa16
+0xdfbdcece67006ac967a791e093e1d49b 0x8bd6a141006042bde0c8bb2c5c6d24e1
+0xaecc49914078536d58fae9f773886e19 0xda7f5bf590966848af39a475506a899f
+0x888f99797a5e012d6d8406c952429604 0xaab37fd7d8f58178c8e5087ba6d33b84
+0xd5605fcdcf32e1d6fb1e4a9a90880a65 0x855c3be0a17fcd265cf2eea09a550680
+0xa6b34ad8c9dfc06ff42faa48c0ea481f 0xd0601d8efc57b08bf13b94daf124da27
+0x823c12795db6ce5776c53d08d6b70859 0xa2cb1717b52481ed54768c4b0c64ca6f
+0xcb7ddcdda26da268a9942f5dcf7dfd0a 0xfe5d54150b090b02d3f93b35435d7c4d
+0x9efa548d26e5a6e1c47bc5014a1a6db0 0xc6b8e9b0709f109a359ab6419ca1091c
+0xf867241c8cc6d4c0c30163d203c94b63 0x9b407691d7fc44f879e0de63425dcf1e
+0xc21094364dfb5636985915fc12f542e5 0xf294b943e17a2bc43e6f5b7b17b2939e
+0x979cf3ca6cec5b5aa705992ceecf9c43 0xbd8430bd0827723150c6ff782a838354
+0xece53cec4a314ebda4f8bf5635246429 0x940f4613ae5ed136871b7795e136be9a
+0xb913179899f6858428e2557b59846e40 0xe757dd7ec07426e5331aeada2fe589d0
+0x9096ea6f3848984f3ff0d2c85def7622 0xb4bca50b065abe630fed077a756b53aa
+0xe1ebce4dc7f16dfbd3e8495912c62895 0x8d3360f09cf6e4bd64712dd7abbbd95d
+0xb080392cc4349decbd8d794d96aacfb4 0xdca04777f541c567ecf0d7a0fc5583a1
+0x89e42caaf9491b60f41686c49db57245 0xac5d37d5b79b6239311c2875c522ced6
+0xd77485cb25823ac77d633293366b828c 0x86a8d39ef77164bcae5dff9c02033198
+0xa8530886b54dbdebd9f57f830283fdfd 0xd267caa862a12d66d072df63c324fd7c
+0x8380dea93da4bc604247cb9e59f71e6e 0xa46116538d0deb7852d9be85f074e609
+0xcd795be87051665667902e276c921f8c 0x806bd9714632dff600ba1cd8a3db53b7
+0xa086cfcd97bf97f380e8a40eccd228a5 0xc8a883c0fdaf7df06122cd128006b2ce
+0xfad2a4b13d1b5d6c796b805720085f82 0x9cc3a6eec6311a63cbe3303674053bb1
+0xc3f490aa77bd60fcbedbfc4411068a9d 0xf4f1b4d515acb93bee92fb5515482d45
+0x991711052d8bf3c5751bdd152d4d1c4b 0xbf5cd54678eef0b6d262d45a78a0635e
+0xef340a98172aace486fb897116c87c35 0x9580869f0e7aac0ed45d35e6ae3d4da1
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+}
+
+: φ ( k -- φ ) 290 + lookup-table nth ; inline
+
+: β ( E k -- β ) ⌊nlog2_10⌋ + ; inline
+
+:: wi ( F φ β n parity? -- wi wi? )
+ F 2 * n + φ * β 128 -
+ [ shift parity? [ odd? ] when ]
+ [ neg 2^ 1 - bitand zero? ] 2bi ; inline
+
+: xi ( F φ β -- xi-odd? xi? ) -1 t wi ; inline
+: yi ( F φ β -- yi-odd? yi? ) 0 t wi ; inline
+: zi ( F φ β -- zi zi? ) 1 f wi ; inline
+
+: s/r ( zi -- s r ) [ 1000/ ] keep over 1000 * - ; inline
+
+: δi ( φ β -- δi ) 127 - shift ; inline
+
+: strip-zeroes ( s -- s' d )
+ 0 [
+ over 10 /mod zero?
+ [ [ nipd swap 1 + ] [ drop ] if ] keep
+ ] loop ; inline
+
+:: normal-interval ( F E -- f e )
+ F even? :> w∈I?
+ E k :> k
+ k φ :> φ
+ E k β :> β
+ φ β δi :> δi
+ F φ β zi :> ( zi zi? )
+ zi s/r
+ dup δi <=> {
+ { +gt+ [ f ] }
+ { +lt+ [
+ w∈I? not over zero? zi? and and
+ [ [ [ 1 - ] [ drop 1000 ] bi* ] when ] keep not
+ ] }
+ { +eq+ [
+ F φ β xi :> ( xi-odd? xi? )
+ xi-odd? [ w∈I? not xi? or ] unless*
+ ] }
+ } case [
+ drop strip-zeroes k - 3 +
] [
- "C" = [ [ "G" = ] [ "E" = ] bi or CHAR: E CHAR: e ? fix-float ]
- [ drop ] if
- ] 2bi ; inline
+ 50 + δi 2/ - :> D
+ D 100/mod :> ( t ρ≠0? )
+ 10 * t + {
+ { [ ρ≠0? ] [ ] }
+ { [
+ F φ β yi :> ( yi-odd? yi? )
+ D 50 - even? yi-odd? eq? over odd? yi? and or
+ ] [ 1 - ] }
+ [ ]
+ } cond 2 k -
+ ] if ; inline
+
+: k0 ( E -- k0 ) ⌊nlog10_2-log10_4/3⌋ neg ; inline
+
+:: w̃i ( φ β w∈I? E n1 q1 n2 q2 n3 -- w̃i )
+ φ -64 2dup 52 - n1 - [ shift ] 2bi@ q1 call β 11 - shift
+ w∈I? E n2 3 between? q2 call [ n3 + ] unless ; inline
+
+: x̃i ( φ β x∈I? E -- x̃i ) 2 [ - ] 2 [ and ] 1 w̃i ; inline
+: z̃i ( φ β z∈I? E -- z̃i ) 1 [ + ] 0 [ not or ] -1 w̃i ; inline
+
+: yru ( φ β -- yru ) 74 - shift 1 + 2/ ; inline
+
+:: shorter-interval ( F E -- f e )
+ E k0 :> k0
+ k0 φ :> φ
+ E k0 β :> β
+ F even? :> w∈I?
+ φ β w∈I? E x̃i :> x̃i
+ φ β w∈I? E z̃i :> z̃i
+ z̃i 10 /i :> z̃i*
+ x̃i z̃i* 10 * <= [ z̃i* strip-zeroes k0 - 1 + ] [
+ φ β yru :> yru
+ yru E -77 number= [
+ yru odd? [ 1 - ] when
+ ] [
+ yru x̃i >= [ 1 + ] unless
+ ] if k0 neg
+ ] if ; inline
+
+: dragonbox ( s F E -- s f e )
+ [ mantissa-expt-normalize* ] [ shorter-interval? ] 2bi
+ [ shorter-interval ] [ normal-interval ] if ; inline
+
+: exponential-format ( sign-str e f-length f-str -- str )
+ [ + 1 - ] dip 1 cut [ "." glue ] unless-empty
+ "e" append swap >dec 3append ; inline
+
+: decimal-format ( sign-str e f-length f-str -- str )
+ 2over + neg? [ pick neg CHAR: 0 pad-head ] when
+ pick 0 > [ 2over + CHAR: 0 pad-tail ] when
+ nip swap neg 0 max cut*
+ [ [ "0" ] when-empty ] bi@ "." glue append ; inline
+
+: general-format ( s f e -- str )
+ swap >dec [ length ] keep
+ 2over swap [ + ] [ neg ] bi [ 1 max ] bi@ + 17 >
+ [ exponential-format ] [ decimal-format ] if ; inline
+
+: format-float ( n -- str )
+ >double< dragonbox general-format ; inline
: float>base ( n radix -- str )
{
- { 10 [ "" -1 16 "" "C" format-float ] }
+ { 10 [ format-float ] }
[ bin-float>base ]
} case ; inline
+++ /dev/null
-// Formatting library for C++ - the core API for char/UTF-8
-//
-// Copyright (c) 2012 - present, Victor Zverovich
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-#ifndef FMT_CORE_H_
-#define FMT_CORE_H_
-
-#include <cstddef> // std::byte
-#include <cstdio> // std::FILE
-#include <cstring> // std::strlen
-#include <iterator>
-#include <limits>
-#include <memory> // std::addressof
-#include <string>
-#include <type_traits>
-
-// The fmt library version in the form major * 10000 + minor * 100 + patch.
-#define FMT_VERSION 100201
-
-#if defined(__clang__) && !defined(__ibmxl__)
-# define FMT_CLANG_VERSION (__clang_major__ * 100 + __clang_minor__)
-#else
-# define FMT_CLANG_VERSION 0
-#endif
-
-#if defined(__GNUC__) && !defined(__clang__) && !defined(__INTEL_COMPILER) && \
- !defined(__NVCOMPILER)
-# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-#else
-# define FMT_GCC_VERSION 0
-#endif
-
-#ifndef FMT_GCC_PRAGMA
-// Workaround _Pragma bug https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59884.
-# if FMT_GCC_VERSION >= 504
-# define FMT_GCC_PRAGMA(arg) _Pragma(arg)
-# else
-# define FMT_GCC_PRAGMA(arg)
-# endif
-#endif
-
-#ifdef __ICL
-# define FMT_ICC_VERSION __ICL
-#elif defined(__INTEL_COMPILER)
-# define FMT_ICC_VERSION __INTEL_COMPILER
-#else
-# define FMT_ICC_VERSION 0
-#endif
-
-#ifdef _MSC_VER
-# define FMT_MSC_VERSION _MSC_VER
-# define FMT_MSC_WARNING(...) __pragma(warning(__VA_ARGS__))
-#else
-# define FMT_MSC_VERSION 0
-# define FMT_MSC_WARNING(...)
-#endif
-
-#ifdef _MSVC_LANG
-# define FMT_CPLUSPLUS _MSVC_LANG
-#else
-# define FMT_CPLUSPLUS __cplusplus
-#endif
-
-#ifdef __has_feature
-# define FMT_HAS_FEATURE(x) __has_feature(x)
-#else
-# define FMT_HAS_FEATURE(x) 0
-#endif
-
-#if defined(__has_include) || FMT_ICC_VERSION >= 1600 || FMT_MSC_VERSION > 1900
-# define FMT_HAS_INCLUDE(x) __has_include(x)
-#else
-# define FMT_HAS_INCLUDE(x) 0
-#endif
-
-#ifdef __has_cpp_attribute
-# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
-#else
-# define FMT_HAS_CPP_ATTRIBUTE(x) 0
-#endif
-
-#define FMT_HAS_CPP14_ATTRIBUTE(attribute) \
- (FMT_CPLUSPLUS >= 201402L && FMT_HAS_CPP_ATTRIBUTE(attribute))
-
-#define FMT_HAS_CPP17_ATTRIBUTE(attribute) \
- (FMT_CPLUSPLUS >= 201703L && FMT_HAS_CPP_ATTRIBUTE(attribute))
-
-// Check if relaxed C++14 constexpr is supported.
-// GCC doesn't allow throw in constexpr until version 6 (bug 67371).
-#ifndef FMT_USE_CONSTEXPR
-# if (FMT_HAS_FEATURE(cxx_relaxed_constexpr) || FMT_MSC_VERSION >= 1912 || \
- (FMT_GCC_VERSION >= 600 && FMT_CPLUSPLUS >= 201402L)) && \
- !FMT_ICC_VERSION && (!defined(__NVCC__) || FMT_CPLUSPLUS >= 202002L)
-# define FMT_USE_CONSTEXPR 1
-# else
-# define FMT_USE_CONSTEXPR 0
-# endif
-#endif
-#if FMT_USE_CONSTEXPR
-# define FMT_CONSTEXPR constexpr
-#else
-# define FMT_CONSTEXPR
-#endif
-
-#if (FMT_CPLUSPLUS >= 202002L || \
- (FMT_CPLUSPLUS >= 201709L && FMT_GCC_VERSION >= 1002)) && \
- ((!defined(_GLIBCXX_RELEASE) || _GLIBCXX_RELEASE >= 10) && \
- (!defined(_LIBCPP_VERSION) || _LIBCPP_VERSION >= 10000) && \
- (!FMT_MSC_VERSION || FMT_MSC_VERSION >= 1928)) && \
- defined(__cpp_lib_is_constant_evaluated)
-# define FMT_CONSTEXPR20 constexpr
-#else
-# define FMT_CONSTEXPR20
-#endif
-
-// Check if constexpr std::char_traits<>::{compare,length} are supported.
-#if defined(__GLIBCXX__)
-# if FMT_CPLUSPLUS >= 201703L && defined(_GLIBCXX_RELEASE) && \
- _GLIBCXX_RELEASE >= 7 // GCC 7+ libstdc++ has _GLIBCXX_RELEASE.
-# define FMT_CONSTEXPR_CHAR_TRAITS constexpr
-# endif
-#elif defined(_LIBCPP_VERSION) && FMT_CPLUSPLUS >= 201703L && \
- _LIBCPP_VERSION >= 4000
-# define FMT_CONSTEXPR_CHAR_TRAITS constexpr
-#elif FMT_MSC_VERSION >= 1914 && FMT_CPLUSPLUS >= 201703L
-# define FMT_CONSTEXPR_CHAR_TRAITS constexpr
-#endif
-#ifndef FMT_CONSTEXPR_CHAR_TRAITS
-# define FMT_CONSTEXPR_CHAR_TRAITS
-#endif
-
-// Check if exceptions are disabled.
-#ifndef FMT_EXCEPTIONS
-# if (defined(__GNUC__) && !defined(__EXCEPTIONS)) || \
- (FMT_MSC_VERSION && !_HAS_EXCEPTIONS)
-# define FMT_EXCEPTIONS 0
-# else
-# define FMT_EXCEPTIONS 1
-# endif
-#endif
-
-// Disable [[noreturn]] on MSVC/NVCC because of bogus unreachable code warnings.
-#if FMT_EXCEPTIONS && FMT_HAS_CPP_ATTRIBUTE(noreturn) && !FMT_MSC_VERSION && \
- !defined(__NVCC__)
-# define FMT_NORETURN [[noreturn]]
-#else
-# define FMT_NORETURN
-#endif
-
-#ifndef FMT_NODISCARD
-# if FMT_HAS_CPP17_ATTRIBUTE(nodiscard)
-# define FMT_NODISCARD [[nodiscard]]
-# else
-# define FMT_NODISCARD
-# endif
-#endif
-
-#ifndef FMT_INLINE
-# if FMT_GCC_VERSION || FMT_CLANG_VERSION
-# define FMT_INLINE inline __attribute__((always_inline))
-# else
-# define FMT_INLINE inline
-# endif
-#endif
-
-#ifdef _MSC_VER
-# define FMT_UNCHECKED_ITERATOR(It) \
- using _Unchecked_type = It // Mark iterator as checked.
-#else
-# define FMT_UNCHECKED_ITERATOR(It) using unchecked_type = It
-#endif
-
-#ifndef FMT_BEGIN_NAMESPACE
-# define FMT_BEGIN_NAMESPACE \
- namespace fmt { \
- inline namespace v10 {
-# define FMT_END_NAMESPACE \
- } \
- }
-#endif
-
-#ifndef FMT_EXPORT
-# define FMT_EXPORT
-# define FMT_BEGIN_EXPORT
-# define FMT_END_EXPORT
-#endif
-
-#if FMT_GCC_VERSION || FMT_CLANG_VERSION
-# define FMT_VISIBILITY(value) __attribute__((visibility(value)))
-#else
-# define FMT_VISIBILITY(value)
-#endif
-
-#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
-# if defined(FMT_LIB_EXPORT)
-# define FMT_API __declspec(dllexport)
-# elif defined(FMT_SHARED)
-# define FMT_API __declspec(dllimport)
-# endif
-#elif defined(FMT_LIB_EXPORT) || defined(FMT_SHARED)
-# define FMT_API FMT_VISIBILITY("default")
-#endif
-#ifndef FMT_API
-# define FMT_API
-#endif
-
-// libc++ supports string_view in pre-c++17.
-#if FMT_HAS_INCLUDE(<string_view>) && \
- (FMT_CPLUSPLUS >= 201703L || defined(_LIBCPP_VERSION))
-# include <string_view>
-# define FMT_USE_STRING_VIEW
-#elif FMT_HAS_INCLUDE("experimental/string_view") && FMT_CPLUSPLUS >= 201402L
-# include <experimental/string_view>
-# define FMT_USE_EXPERIMENTAL_STRING_VIEW
-#endif
-
-#ifndef FMT_UNICODE
-# define FMT_UNICODE !FMT_MSC_VERSION
-#endif
-
-#ifndef FMT_CONSTEVAL
-# if ((FMT_GCC_VERSION >= 1000 || FMT_CLANG_VERSION >= 1101) && \
- (!defined(__apple_build_version__) || \
- __apple_build_version__ >= 14000029L) && \
- FMT_CPLUSPLUS >= 202002L) || \
- (defined(__cpp_consteval) && \
- (!FMT_MSC_VERSION || FMT_MSC_VERSION >= 1929))
-// consteval is broken in MSVC before VS2019 version 16.10 and Apple clang
-// before 14.
-# define FMT_CONSTEVAL consteval
-# define FMT_HAS_CONSTEVAL
-# else
-# define FMT_CONSTEVAL
-# endif
-#endif
-
-#ifndef FMT_USE_NONTYPE_TEMPLATE_ARGS
-# if defined(__cpp_nontype_template_args) && \
- ((FMT_GCC_VERSION >= 903 && FMT_CPLUSPLUS >= 201709L) || \
- __cpp_nontype_template_args >= 201911L) && \
- !defined(__NVCOMPILER) && !defined(__LCC__)
-# define FMT_USE_NONTYPE_TEMPLATE_ARGS 1
-# else
-# define FMT_USE_NONTYPE_TEMPLATE_ARGS 0
-# endif
-#endif
-
-// GCC < 5 requires this-> in decltype
-#ifndef FMT_DECLTYPE_THIS
-# if FMT_GCC_VERSION && FMT_GCC_VERSION < 500
-# define FMT_DECLTYPE_THIS this->
-# else
-# define FMT_DECLTYPE_THIS
-# endif
-#endif
-
-// Enable minimal optimizations for more compact code in debug mode.
-FMT_GCC_PRAGMA("GCC push_options")
-#if !defined(__OPTIMIZE__) && !defined(__NVCOMPILER) && !defined(__LCC__) && \
- !defined(__CUDACC__)
-FMT_GCC_PRAGMA("GCC optimize(\"Og\")")
-#endif
-
-FMT_BEGIN_NAMESPACE
-
-// Implementations of enable_if_t and other metafunctions for older systems.
-template <bool B, typename T = void>
-using enable_if_t = typename std::enable_if<B, T>::type;
-template <bool B, typename T, typename F>
-using conditional_t = typename std::conditional<B, T, F>::type;
-template <bool B> using bool_constant = std::integral_constant<bool, B>;
-template <typename T>
-using remove_reference_t = typename std::remove_reference<T>::type;
-template <typename T>
-using remove_const_t = typename std::remove_const<T>::type;
-template <typename T>
-using remove_cvref_t = typename std::remove_cv<remove_reference_t<T>>::type;
-template <typename T> struct type_identity {
- using type = T;
-};
-template <typename T> using type_identity_t = typename type_identity<T>::type;
-template <typename T>
-using underlying_t = typename std::underlying_type<T>::type;
-
-// Checks whether T is a container with contiguous storage.
-template <typename T> struct is_contiguous : std::false_type {};
-template <typename Char>
-struct is_contiguous<std::basic_string<Char>> : std::true_type {};
-
-struct monostate {
- constexpr monostate() {}
-};
-
-// An enable_if helper to be used in template parameters which results in much
-// shorter symbols: https://godbolt.org/z/sWw4vP. Extra parentheses are needed
-// to workaround a bug in MSVC 2019 (see #1140 and #1186).
-#ifdef FMT_DOC
-# define FMT_ENABLE_IF(...)
-#else
-# define FMT_ENABLE_IF(...) fmt::enable_if_t<(__VA_ARGS__), int> = 0
-#endif
-
-// This is defined in core.h instead of format.h to avoid injecting in std.
-// It is a template to avoid undesirable implicit conversions to std::byte.
-#ifdef __cpp_lib_byte
-template <typename T, FMT_ENABLE_IF(std::is_same<T, std::byte>::value)>
-inline auto format_as(T b) -> unsigned char {
- return static_cast<unsigned char>(b);
-}
-#endif
-
-namespace detail {
-// Suppresses "unused variable" warnings with the method described in
-// https://herbsutter.com/2009/10/18/mailbag-shutting-up-compiler-warnings/.
-// (void)var does not work on many Intel compilers.
-template <typename... T> FMT_CONSTEXPR void ignore_unused(const T&...) {}
-
-constexpr FMT_INLINE auto is_constant_evaluated(
- bool default_value = false) noexcept -> bool {
-// Workaround for incompatibility between libstdc++ consteval-based
-// std::is_constant_evaluated() implementation and clang-14.
-// https://github.com/fmtlib/fmt/issues/3247
-#if FMT_CPLUSPLUS >= 202002L && defined(_GLIBCXX_RELEASE) && \
- _GLIBCXX_RELEASE >= 12 && \
- (FMT_CLANG_VERSION >= 1400 && FMT_CLANG_VERSION < 1500)
- ignore_unused(default_value);
- return __builtin_is_constant_evaluated();
-#elif defined(__cpp_lib_is_constant_evaluated)
- ignore_unused(default_value);
- return std::is_constant_evaluated();
-#else
- return default_value;
-#endif
-}
-
-// Suppresses "conditional expression is constant" warnings.
-template <typename T> constexpr FMT_INLINE auto const_check(T value) -> T {
- return value;
-}
-
-FMT_NORETURN FMT_API void assert_fail(const char* file, int line,
- const char* message);
-
-#ifndef FMT_ASSERT
-# ifdef NDEBUG
-// FMT_ASSERT is not empty to avoid -Wempty-body.
-# define FMT_ASSERT(condition, message) \
- fmt::detail::ignore_unused((condition), (message))
-# else
-# define FMT_ASSERT(condition, message) \
- ((condition) /* void() fails with -Winvalid-constexpr on clang 4.0.1 */ \
- ? (void)0 \
- : fmt::detail::assert_fail(__FILE__, __LINE__, (message)))
-# endif
-#endif
-
-#if defined(FMT_USE_STRING_VIEW)
-template <typename Char> using std_string_view = std::basic_string_view<Char>;
-#elif defined(FMT_USE_EXPERIMENTAL_STRING_VIEW)
-template <typename Char>
-using std_string_view = std::experimental::basic_string_view<Char>;
-#else
-template <typename T> struct std_string_view {};
-#endif
-
-#ifdef FMT_USE_INT128
-// Do nothing.
-#elif defined(__SIZEOF_INT128__) && !defined(__NVCC__) && \
- !(FMT_CLANG_VERSION && FMT_MSC_VERSION)
-# define FMT_USE_INT128 1
-using int128_opt = __int128_t; // An optional native 128-bit integer.
-using uint128_opt = __uint128_t;
-template <typename T> inline auto convert_for_visit(T value) -> T {
- return value;
-}
-#else
-# define FMT_USE_INT128 0
-#endif
-#if !FMT_USE_INT128
-enum class int128_opt {};
-enum class uint128_opt {};
-// Reduce template instantiations.
-template <typename T> auto convert_for_visit(T) -> monostate { return {}; }
-#endif
-
-// Casts a nonnegative integer to unsigned.
-template <typename Int>
-FMT_CONSTEXPR auto to_unsigned(Int value) ->
- typename std::make_unsigned<Int>::type {
- FMT_ASSERT(std::is_unsigned<Int>::value || value >= 0, "negative value");
- return static_cast<typename std::make_unsigned<Int>::type>(value);
-}
-
-FMT_CONSTEXPR inline auto is_utf8() -> bool {
- FMT_MSC_WARNING(suppress : 4566) constexpr unsigned char section[] = "\u00A7";
-
- // Avoid buggy sign extensions in MSVC's constant evaluation mode (#2297).
- using uchar = unsigned char;
- return FMT_UNICODE || (sizeof(section) == 3 && uchar(section[0]) == 0xC2 &&
- uchar(section[1]) == 0xA7);
-}
-} // namespace detail
-
-/**
- An implementation of ``std::basic_string_view`` for pre-C++17. It provides a
- subset of the API. ``fmt::basic_string_view`` is used for format strings even
- if ``std::string_view`` is available to prevent issues when a library is
- compiled with a different ``-std`` option than the client code (which is not
- recommended).
- */
-FMT_EXPORT
-template <typename Char> class basic_string_view {
- private:
- const Char* data_;
- size_t size_;
-
- public:
- using value_type = Char;
- using iterator = const Char*;
-
- constexpr basic_string_view() noexcept : data_(nullptr), size_(0) {}
-
- /** Constructs a string reference object from a C string and a size. */
- constexpr basic_string_view(const Char* s, size_t count) noexcept
- : data_(s), size_(count) {}
-
- /**
- \rst
- Constructs a string reference object from a C string computing
- the size with ``std::char_traits<Char>::length``.
- \endrst
- */
- FMT_CONSTEXPR_CHAR_TRAITS
- FMT_INLINE
- basic_string_view(const Char* s)
- : data_(s),
- size_(detail::const_check(std::is_same<Char, char>::value &&
- !detail::is_constant_evaluated(true))
- ? std::strlen(reinterpret_cast<const char*>(s))
- : std::char_traits<Char>::length(s)) {}
-
- /** Constructs a string reference from a ``std::basic_string`` object. */
- template <typename Traits, typename Alloc>
- FMT_CONSTEXPR basic_string_view(
- const std::basic_string<Char, Traits, Alloc>& s) noexcept
- : data_(s.data()), size_(s.size()) {}
-
- template <typename S, FMT_ENABLE_IF(std::is_same<
- S, detail::std_string_view<Char>>::value)>
- FMT_CONSTEXPR basic_string_view(S s) noexcept
- : data_(s.data()), size_(s.size()) {}
-
- /** Returns a pointer to the string data. */
- constexpr auto data() const noexcept -> const Char* { return data_; }
-
- /** Returns the string size. */
- constexpr auto size() const noexcept -> size_t { return size_; }
-
- constexpr auto begin() const noexcept -> iterator { return data_; }
- constexpr auto end() const noexcept -> iterator { return data_ + size_; }
-
- constexpr auto operator[](size_t pos) const noexcept -> const Char& {
- return data_[pos];
- }
-
- FMT_CONSTEXPR void remove_prefix(size_t n) noexcept {
- data_ += n;
- size_ -= n;
- }
-
- FMT_CONSTEXPR_CHAR_TRAITS auto starts_with(
- basic_string_view<Char> sv) const noexcept -> bool {
- return size_ >= sv.size_ &&
- std::char_traits<Char>::compare(data_, sv.data_, sv.size_) == 0;
- }
- FMT_CONSTEXPR_CHAR_TRAITS auto starts_with(Char c) const noexcept -> bool {
- return size_ >= 1 && std::char_traits<Char>::eq(*data_, c);
- }
- FMT_CONSTEXPR_CHAR_TRAITS auto starts_with(const Char* s) const -> bool {
- return starts_with(basic_string_view<Char>(s));
- }
-
- // Lexicographically compare this string reference to other.
- FMT_CONSTEXPR_CHAR_TRAITS auto compare(basic_string_view other) const -> int {
- size_t str_size = size_ < other.size_ ? size_ : other.size_;
- int result = std::char_traits<Char>::compare(data_, other.data_, str_size);
- if (result == 0)
- result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
- return result;
- }
-
- FMT_CONSTEXPR_CHAR_TRAITS friend auto operator==(basic_string_view lhs,
- basic_string_view rhs)
- -> bool {
- return lhs.compare(rhs) == 0;
- }
- friend auto operator!=(basic_string_view lhs, basic_string_view rhs) -> bool {
- return lhs.compare(rhs) != 0;
- }
- friend auto operator<(basic_string_view lhs, basic_string_view rhs) -> bool {
- return lhs.compare(rhs) < 0;
- }
- friend auto operator<=(basic_string_view lhs, basic_string_view rhs) -> bool {
- return lhs.compare(rhs) <= 0;
- }
- friend auto operator>(basic_string_view lhs, basic_string_view rhs) -> bool {
- return lhs.compare(rhs) > 0;
- }
- friend auto operator>=(basic_string_view lhs, basic_string_view rhs) -> bool {
- return lhs.compare(rhs) >= 0;
- }
-};
-
-FMT_EXPORT
-using string_view = basic_string_view<char>;
-
-/** Specifies if ``T`` is a character type. Can be specialized by users. */
-FMT_EXPORT
-template <typename T> struct is_char : std::false_type {};
-template <> struct is_char<char> : std::true_type {};
-
-namespace detail {
-
-// A base class for compile-time strings.
-struct compile_string {};
-
-template <typename S>
-struct is_compile_string : std::is_base_of<compile_string, S> {};
-
-template <typename Char, FMT_ENABLE_IF(is_char<Char>::value)>
-FMT_INLINE auto to_string_view(const Char* s) -> basic_string_view<Char> {
- return s;
-}
-template <typename Char, typename Traits, typename Alloc>
-inline auto to_string_view(const std::basic_string<Char, Traits, Alloc>& s)
- -> basic_string_view<Char> {
- return s;
-}
-template <typename Char>
-constexpr auto to_string_view(basic_string_view<Char> s)
- -> basic_string_view<Char> {
- return s;
-}
-template <typename Char,
- FMT_ENABLE_IF(!std::is_empty<std_string_view<Char>>::value)>
-inline auto to_string_view(std_string_view<Char> s) -> basic_string_view<Char> {
- return s;
-}
-template <typename S, FMT_ENABLE_IF(is_compile_string<S>::value)>
-constexpr auto to_string_view(const S& s)
- -> basic_string_view<typename S::char_type> {
- return basic_string_view<typename S::char_type>(s);
-}
-void to_string_view(...);
-
-// Specifies whether S is a string type convertible to fmt::basic_string_view.
-// It should be a constexpr function but MSVC 2017 fails to compile it in
-// enable_if and MSVC 2015 fails to compile it as an alias template.
-// ADL is intentionally disabled as to_string_view is not an extension point.
-template <typename S>
-struct is_string
- : std::is_class<decltype(detail::to_string_view(std::declval<S>()))> {};
-
-template <typename S, typename = void> struct char_t_impl {};
-template <typename S> struct char_t_impl<S, enable_if_t<is_string<S>::value>> {
- using result = decltype(to_string_view(std::declval<S>()));
- using type = typename result::value_type;
-};
-
-enum class type {
- none_type,
- // Integer types should go first,
- int_type,
- uint_type,
- long_long_type,
- ulong_long_type,
- int128_type,
- uint128_type,
- bool_type,
- char_type,
- last_integer_type = char_type,
- // followed by floating-point types.
- float_type,
- double_type,
- long_double_type,
- last_numeric_type = long_double_type,
- cstring_type,
- string_type,
- pointer_type,
- custom_type
-};
-
-// Maps core type T to the corresponding type enum constant.
-template <typename T, typename Char>
-struct type_constant : std::integral_constant<type, type::custom_type> {};
-
-#define FMT_TYPE_CONSTANT(Type, constant) \
- template <typename Char> \
- struct type_constant<Type, Char> \
- : std::integral_constant<type, type::constant> {}
-
-FMT_TYPE_CONSTANT(int, int_type);
-FMT_TYPE_CONSTANT(unsigned, uint_type);
-FMT_TYPE_CONSTANT(long long, long_long_type);
-FMT_TYPE_CONSTANT(unsigned long long, ulong_long_type);
-FMT_TYPE_CONSTANT(int128_opt, int128_type);
-FMT_TYPE_CONSTANT(uint128_opt, uint128_type);
-FMT_TYPE_CONSTANT(bool, bool_type);
-FMT_TYPE_CONSTANT(Char, char_type);
-FMT_TYPE_CONSTANT(float, float_type);
-FMT_TYPE_CONSTANT(double, double_type);
-FMT_TYPE_CONSTANT(long double, long_double_type);
-FMT_TYPE_CONSTANT(const Char*, cstring_type);
-FMT_TYPE_CONSTANT(basic_string_view<Char>, string_type);
-FMT_TYPE_CONSTANT(const void*, pointer_type);
-
-constexpr auto is_integral_type(type t) -> bool {
- return t > type::none_type && t <= type::last_integer_type;
-}
-constexpr auto is_arithmetic_type(type t) -> bool {
- return t > type::none_type && t <= type::last_numeric_type;
-}
-
-constexpr auto set(type rhs) -> int { return 1 << static_cast<int>(rhs); }
-constexpr auto in(type t, int set) -> bool {
- return ((set >> static_cast<int>(t)) & 1) != 0;
-}
-
-// Bitsets of types.
-enum {
- sint_set =
- set(type::int_type) | set(type::long_long_type) | set(type::int128_type),
- uint_set = set(type::uint_type) | set(type::ulong_long_type) |
- set(type::uint128_type),
- bool_set = set(type::bool_type),
- char_set = set(type::char_type),
- float_set = set(type::float_type) | set(type::double_type) |
- set(type::long_double_type),
- string_set = set(type::string_type),
- cstring_set = set(type::cstring_type),
- pointer_set = set(type::pointer_type)
-};
-
-// DEPRECATED!
-FMT_NORETURN FMT_API void throw_format_error(const char* message);
-
-struct error_handler {
- constexpr error_handler() = default;
-
- // This function is intentionally not constexpr to give a compile-time error.
- FMT_NORETURN void on_error(const char* message) {
- throw_format_error(message);
- }
-};
-} // namespace detail
-
-/** Throws ``format_error`` with a given message. */
-using detail::throw_format_error;
-
-/** String's character type. */
-template <typename S> using char_t = typename detail::char_t_impl<S>::type;
-
-/**
- \rst
- Parsing context consisting of a format string range being parsed and an
- argument counter for automatic indexing.
- You can use the ``format_parse_context`` type alias for ``char`` instead.
- \endrst
- */
-FMT_EXPORT
-template <typename Char> class basic_format_parse_context {
- private:
- basic_string_view<Char> format_str_;
- int next_arg_id_;
-
- FMT_CONSTEXPR void do_check_arg_id(int id);
-
- public:
- using char_type = Char;
- using iterator = const Char*;
-
- explicit constexpr basic_format_parse_context(
- basic_string_view<Char> format_str, int next_arg_id = 0)
- : format_str_(format_str), next_arg_id_(next_arg_id) {}
-
- /**
- Returns an iterator to the beginning of the format string range being
- parsed.
- */
- constexpr auto begin() const noexcept -> iterator {
- return format_str_.begin();
- }
-
- /**
- Returns an iterator past the end of the format string range being parsed.
- */
- constexpr auto end() const noexcept -> iterator { return format_str_.end(); }
-
- /** Advances the begin iterator to ``it``. */
- FMT_CONSTEXPR void advance_to(iterator it) {
- format_str_.remove_prefix(detail::to_unsigned(it - begin()));
- }
-
- /**
- Reports an error if using the manual argument indexing; otherwise returns
- the next argument index and switches to the automatic indexing.
- */
- FMT_CONSTEXPR auto next_arg_id() -> int {
- if (next_arg_id_ < 0) {
- detail::throw_format_error(
- "cannot switch from manual to automatic argument indexing");
- return 0;
- }
- int id = next_arg_id_++;
- do_check_arg_id(id);
- return id;
- }
-
- /**
- Reports an error if using the automatic argument indexing; otherwise
- switches to the manual indexing.
- */
- FMT_CONSTEXPR void check_arg_id(int id) {
- if (next_arg_id_ > 0) {
- detail::throw_format_error(
- "cannot switch from automatic to manual argument indexing");
- return;
- }
- next_arg_id_ = -1;
- do_check_arg_id(id);
- }
- FMT_CONSTEXPR void check_arg_id(basic_string_view<Char>) {}
- FMT_CONSTEXPR void check_dynamic_spec(int arg_id);
-};
-
-FMT_EXPORT
-using format_parse_context = basic_format_parse_context<char>;
-
-namespace detail {
-// A parse context with extra data used only in compile-time checks.
-template <typename Char>
-class compile_parse_context : public basic_format_parse_context<Char> {
- private:
- int num_args_;
- const type* types_;
- using base = basic_format_parse_context<Char>;
-
- public:
- explicit FMT_CONSTEXPR compile_parse_context(
- basic_string_view<Char> format_str, int num_args, const type* types,
- int next_arg_id = 0)
- : base(format_str, next_arg_id), num_args_(num_args), types_(types) {}
-
- constexpr auto num_args() const -> int { return num_args_; }
- constexpr auto arg_type(int id) const -> type { return types_[id]; }
-
- FMT_CONSTEXPR auto next_arg_id() -> int {
- int id = base::next_arg_id();
- if (id >= num_args_) throw_format_error("argument not found");
- return id;
- }
-
- FMT_CONSTEXPR void check_arg_id(int id) {
- base::check_arg_id(id);
- if (id >= num_args_) throw_format_error("argument not found");
- }
- using base::check_arg_id;
-
- FMT_CONSTEXPR void check_dynamic_spec(int arg_id) {
- detail::ignore_unused(arg_id);
-#if !defined(__LCC__)
- if (arg_id < num_args_ && types_ && !is_integral_type(types_[arg_id]))
- throw_format_error("width/precision is not integer");
-#endif
- }
-};
-
-// Extracts a reference to the container from back_insert_iterator.
-template <typename Container>
-inline auto get_container(std::back_insert_iterator<Container> it)
- -> Container& {
- using base = std::back_insert_iterator<Container>;
- struct accessor : base {
- accessor(base b) : base(b) {}
- using base::container;
- };
- return *accessor(it).container;
-}
-
-template <typename Char, typename InputIt, typename OutputIt>
-FMT_CONSTEXPR auto copy_str(InputIt begin, InputIt end, OutputIt out)
- -> OutputIt {
- while (begin != end) *out++ = static_cast<Char>(*begin++);
- return out;
-}
-
-template <typename Char, typename T, typename U,
- FMT_ENABLE_IF(
- std::is_same<remove_const_t<T>, U>::value&& is_char<U>::value)>
-FMT_CONSTEXPR auto copy_str(T* begin, T* end, U* out) -> U* {
- if (is_constant_evaluated()) return copy_str<Char, T*, U*>(begin, end, out);
- auto size = to_unsigned(end - begin);
- if (size > 0) memcpy(out, begin, size * sizeof(U));
- return out + size;
-}
-
-/**
- \rst
- A contiguous memory buffer with an optional growing ability. It is an internal
- class and shouldn't be used directly, only via `~fmt::basic_memory_buffer`.
- \endrst
- */
-template <typename T> class buffer {
- private:
- T* ptr_;
- size_t size_;
- size_t capacity_;
-
- protected:
- // Don't initialize ptr_ since it is not accessed to save a few cycles.
- FMT_MSC_WARNING(suppress : 26495)
- FMT_CONSTEXPR buffer(size_t sz) noexcept : size_(sz), capacity_(sz) {}
-
- FMT_CONSTEXPR20 buffer(T* p = nullptr, size_t sz = 0, size_t cap = 0) noexcept
- : ptr_(p), size_(sz), capacity_(cap) {}
-
- FMT_CONSTEXPR20 ~buffer() = default;
- buffer(buffer&&) = default;
-
- /** Sets the buffer data and capacity. */
- FMT_CONSTEXPR void set(T* buf_data, size_t buf_capacity) noexcept {
- ptr_ = buf_data;
- capacity_ = buf_capacity;
- }
-
- /** Increases the buffer capacity to hold at least *capacity* elements. */
- // DEPRECATED!
- virtual FMT_CONSTEXPR20 void grow(size_t capacity) = 0;
-
- public:
- using value_type = T;
- using const_reference = const T&;
-
- buffer(const buffer&) = delete;
- void operator=(const buffer&) = delete;
-
- FMT_INLINE auto begin() noexcept -> T* { return ptr_; }
- FMT_INLINE auto end() noexcept -> T* { return ptr_ + size_; }
-
- FMT_INLINE auto begin() const noexcept -> const T* { return ptr_; }
- FMT_INLINE auto end() const noexcept -> const T* { return ptr_ + size_; }
-
- /** Returns the size of this buffer. */
- constexpr auto size() const noexcept -> size_t { return size_; }
-
- /** Returns the capacity of this buffer. */
- constexpr auto capacity() const noexcept -> size_t { return capacity_; }
-
- /** Returns a pointer to the buffer data (not null-terminated). */
- FMT_CONSTEXPR auto data() noexcept -> T* { return ptr_; }
- FMT_CONSTEXPR auto data() const noexcept -> const T* { return ptr_; }
-
- /** Clears this buffer. */
- void clear() { size_ = 0; }
-
- // Tries resizing the buffer to contain *count* elements. If T is a POD type
- // the new elements may not be initialized.
- FMT_CONSTEXPR20 void try_resize(size_t count) {
- try_reserve(count);
- size_ = count <= capacity_ ? count : capacity_;
- }
-
- // Tries increasing the buffer capacity to *new_capacity*. It can increase the
- // capacity by a smaller amount than requested but guarantees there is space
- // for at least one additional element either by increasing the capacity or by
- // flushing the buffer if it is full.
- FMT_CONSTEXPR20 void try_reserve(size_t new_capacity) {
- if (new_capacity > capacity_) grow(new_capacity);
- }
-
- FMT_CONSTEXPR20 void push_back(const T& value) {
- try_reserve(size_ + 1);
- ptr_[size_++] = value;
- }
-
- /** Appends data to the end of the buffer. */
- template <typename U> void append(const U* begin, const U* end);
-
- template <typename Idx> FMT_CONSTEXPR auto operator[](Idx index) -> T& {
- return ptr_[index];
- }
- template <typename Idx>
- FMT_CONSTEXPR auto operator[](Idx index) const -> const T& {
- return ptr_[index];
- }
-};
-
-struct buffer_traits {
- explicit buffer_traits(size_t) {}
- auto count() const -> size_t { return 0; }
- auto limit(size_t size) -> size_t { return size; }
-};
-
-class fixed_buffer_traits {
- private:
- size_t count_ = 0;
- size_t limit_;
-
- public:
- explicit fixed_buffer_traits(size_t limit) : limit_(limit) {}
- auto count() const -> size_t { return count_; }
- auto limit(size_t size) -> size_t {
- size_t n = limit_ > count_ ? limit_ - count_ : 0;
- count_ += size;
- return size < n ? size : n;
- }
-};
-
-// A buffer that writes to an output iterator when flushed.
-template <typename OutputIt, typename T, typename Traits = buffer_traits>
-class iterator_buffer final : public Traits, public buffer<T> {
- private:
- OutputIt out_;
- enum { buffer_size = 256 };
- T data_[buffer_size];
-
- protected:
- FMT_CONSTEXPR20 void grow(size_t) override {
- if (this->size() == buffer_size) flush();
- }
-
- void flush() {
- auto size = this->size();
- this->clear();
- out_ = copy_str<T>(data_, data_ + this->limit(size), out_);
- }
-
- public:
- explicit iterator_buffer(OutputIt out, size_t n = buffer_size)
- : Traits(n), buffer<T>(data_, 0, buffer_size), out_(out) {}
- iterator_buffer(iterator_buffer&& other)
- : Traits(other), buffer<T>(data_, 0, buffer_size), out_(other.out_) {}
- ~iterator_buffer() { flush(); }
-
- auto out() -> OutputIt {
- flush();
- return out_;
- }
- auto count() const -> size_t { return Traits::count() + this->size(); }
-};
-
-template <typename T>
-class iterator_buffer<T*, T, fixed_buffer_traits> final
- : public fixed_buffer_traits,
- public buffer<T> {
- private:
- T* out_;
- enum { buffer_size = 256 };
- T data_[buffer_size];
-
- protected:
- FMT_CONSTEXPR20 void grow(size_t) override {
- if (this->size() == this->capacity()) flush();
- }
-
- void flush() {
- size_t n = this->limit(this->size());
- if (this->data() == out_) {
- out_ += n;
- this->set(data_, buffer_size);
- }
- this->clear();
- }
-
- public:
- explicit iterator_buffer(T* out, size_t n = buffer_size)
- : fixed_buffer_traits(n), buffer<T>(out, 0, n), out_(out) {}
- iterator_buffer(iterator_buffer&& other)
- : fixed_buffer_traits(other),
- buffer<T>(std::move(other)),
- out_(other.out_) {
- if (this->data() != out_) {
- this->set(data_, buffer_size);
- this->clear();
- }
- }
- ~iterator_buffer() { flush(); }
-
- auto out() -> T* {
- flush();
- return out_;
- }
- auto count() const -> size_t {
- return fixed_buffer_traits::count() + this->size();
- }
-};
-
-template <typename T> class iterator_buffer<T*, T> final : public buffer<T> {
- protected:
- FMT_CONSTEXPR20 void grow(size_t) override {}
-
- public:
- explicit iterator_buffer(T* out, size_t = 0) : buffer<T>(out, 0, ~size_t()) {}
-
- auto out() -> T* { return &*this->end(); }
-};
-
-// A buffer that writes to a container with the contiguous storage.
-template <typename Container>
-class iterator_buffer<std::back_insert_iterator<Container>,
- enable_if_t<is_contiguous<Container>::value,
- typename Container::value_type>>
- final : public buffer<typename Container::value_type> {
- private:
- Container& container_;
-
- protected:
- FMT_CONSTEXPR20 void grow(size_t capacity) override {
- container_.resize(capacity);
- this->set(&container_[0], capacity);
- }
-
- public:
- explicit iterator_buffer(Container& c)
- : buffer<typename Container::value_type>(c.size()), container_(c) {}
- explicit iterator_buffer(std::back_insert_iterator<Container> out, size_t = 0)
- : iterator_buffer(get_container(out)) {}
-
- auto out() -> std::back_insert_iterator<Container> {
- return std::back_inserter(container_);
- }
-};
-
-// A buffer that counts the number of code units written discarding the output.
-template <typename T = char> class counting_buffer final : public buffer<T> {
- private:
- enum { buffer_size = 256 };
- T data_[buffer_size];
- size_t count_ = 0;
-
- protected:
- FMT_CONSTEXPR20 void grow(size_t) override {
- if (this->size() != buffer_size) return;
- count_ += this->size();
- this->clear();
- }
-
- public:
- counting_buffer() : buffer<T>(data_, 0, buffer_size) {}
-
- auto count() -> size_t { return count_ + this->size(); }
-};
-} // namespace detail
-
-template <typename Char>
-FMT_CONSTEXPR void basic_format_parse_context<Char>::do_check_arg_id(int id) {
- // Argument id is only checked at compile-time during parsing because
- // formatting has its own validation.
- if (detail::is_constant_evaluated() &&
- (!FMT_GCC_VERSION || FMT_GCC_VERSION >= 1200)) {
- using context = detail::compile_parse_context<Char>;
- if (id >= static_cast<context*>(this)->num_args())
- detail::throw_format_error("argument not found");
- }
-}
-
-template <typename Char>
-FMT_CONSTEXPR void basic_format_parse_context<Char>::check_dynamic_spec(
- int arg_id) {
- if (detail::is_constant_evaluated() &&
- (!FMT_GCC_VERSION || FMT_GCC_VERSION >= 1200)) {
- using context = detail::compile_parse_context<Char>;
- static_cast<context*>(this)->check_dynamic_spec(arg_id);
- }
-}
-
-FMT_EXPORT template <typename Context> class basic_format_arg;
-FMT_EXPORT template <typename Context> class basic_format_args;
-FMT_EXPORT template <typename Context> class dynamic_format_arg_store;
-
-// A formatter for objects of type T.
-FMT_EXPORT
-template <typename T, typename Char = char, typename Enable = void>
-struct formatter {
- // A deleted default constructor indicates a disabled formatter.
- formatter() = delete;
-};
-
-// Specifies if T has an enabled formatter specialization. A type can be
-// formattable even if it doesn't have a formatter e.g. via a conversion.
-template <typename T, typename Context>
-using has_formatter =
- std::is_constructible<typename Context::template formatter_type<T>>;
-
-// An output iterator that appends to a buffer.
-// It is used to reduce symbol sizes for the common case.
-class appender : public std::back_insert_iterator<detail::buffer<char>> {
- using base = std::back_insert_iterator<detail::buffer<char>>;
-
- public:
- using std::back_insert_iterator<detail::buffer<char>>::back_insert_iterator;
- appender(base it) noexcept : base(it) {}
- FMT_UNCHECKED_ITERATOR(appender);
-
- auto operator++() noexcept -> appender& { return *this; }
- auto operator++(int) noexcept -> appender { return *this; }
-};
-
-namespace detail {
-
-template <typename Context, typename T>
-constexpr auto has_const_formatter_impl(T*)
- -> decltype(typename Context::template formatter_type<T>().format(
- std::declval<const T&>(), std::declval<Context&>()),
- true) {
- return true;
-}
-template <typename Context>
-constexpr auto has_const_formatter_impl(...) -> bool {
- return false;
-}
-template <typename T, typename Context>
-constexpr auto has_const_formatter() -> bool {
- return has_const_formatter_impl<Context>(static_cast<T*>(nullptr));
-}
-
-template <typename T>
-using buffer_appender = conditional_t<std::is_same<T, char>::value, appender,
- std::back_insert_iterator<buffer<T>>>;
-
-// Maps an output iterator to a buffer.
-template <typename T, typename OutputIt>
-auto get_buffer(OutputIt out) -> iterator_buffer<OutputIt, T> {
- return iterator_buffer<OutputIt, T>(out);
-}
-template <typename T, typename Buf,
- FMT_ENABLE_IF(std::is_base_of<buffer<char>, Buf>::value)>
-auto get_buffer(std::back_insert_iterator<Buf> out) -> buffer<char>& {
- return get_container(out);
-}
-
-template <typename Buf, typename OutputIt>
-FMT_INLINE auto get_iterator(Buf& buf, OutputIt) -> decltype(buf.out()) {
- return buf.out();
-}
-template <typename T, typename OutputIt>
-auto get_iterator(buffer<T>&, OutputIt out) -> OutputIt {
- return out;
-}
-
-struct view {};
-
-template <typename Char, typename T> struct named_arg : view {
- const Char* name;
- const T& value;
- named_arg(const Char* n, const T& v) : name(n), value(v) {}
-};
-
-template <typename Char> struct named_arg_info {
- const Char* name;
- int id;
-};
-
-template <typename T, typename Char, size_t NUM_ARGS, size_t NUM_NAMED_ARGS>
-struct arg_data {
- // args_[0].named_args points to named_args_ to avoid bloating format_args.
- // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning.
- T args_[1 + (NUM_ARGS != 0 ? NUM_ARGS : +1)];
- named_arg_info<Char> named_args_[NUM_NAMED_ARGS];
-
- template <typename... U>
- arg_data(const U&... init) : args_{T(named_args_, NUM_NAMED_ARGS), init...} {}
- arg_data(const arg_data& other) = delete;
- auto args() const -> const T* { return args_ + 1; }
- auto named_args() -> named_arg_info<Char>* { return named_args_; }
-};
-
-template <typename T, typename Char, size_t NUM_ARGS>
-struct arg_data<T, Char, NUM_ARGS, 0> {
- // +1 to workaround a bug in gcc 7.5 that causes duplicated-branches warning.
- T args_[NUM_ARGS != 0 ? NUM_ARGS : +1];
-
- template <typename... U>
- FMT_CONSTEXPR FMT_INLINE arg_data(const U&... init) : args_{init...} {}
- FMT_CONSTEXPR FMT_INLINE auto args() const -> const T* { return args_; }
- FMT_CONSTEXPR FMT_INLINE auto named_args() -> std::nullptr_t {
- return nullptr;
- }
-};
-
-template <typename Char>
-inline void init_named_args(named_arg_info<Char>*, int, int) {}
-
-template <typename T> struct is_named_arg : std::false_type {};
-template <typename T> struct is_statically_named_arg : std::false_type {};
-
-template <typename T, typename Char>
-struct is_named_arg<named_arg<Char, T>> : std::true_type {};
-
-template <typename Char, typename T, typename... Tail,
- FMT_ENABLE_IF(!is_named_arg<T>::value)>
-void init_named_args(named_arg_info<Char>* named_args, int arg_count,
- int named_arg_count, const T&, const Tail&... args) {
- init_named_args(named_args, arg_count + 1, named_arg_count, args...);
-}
-
-template <typename Char, typename T, typename... Tail,
- FMT_ENABLE_IF(is_named_arg<T>::value)>
-void init_named_args(named_arg_info<Char>* named_args, int arg_count,
- int named_arg_count, const T& arg, const Tail&... args) {
- named_args[named_arg_count++] = {arg.name, arg_count};
- init_named_args(named_args, arg_count + 1, named_arg_count, args...);
-}
-
-template <typename... Args>
-FMT_CONSTEXPR FMT_INLINE void init_named_args(std::nullptr_t, int, int,
- const Args&...) {}
-
-template <bool B = false> constexpr auto count() -> size_t { return B ? 1 : 0; }
-template <bool B1, bool B2, bool... Tail> constexpr auto count() -> size_t {
- return (B1 ? 1 : 0) + count<B2, Tail...>();
-}
-
-template <typename... Args> constexpr auto count_named_args() -> size_t {
- return count<is_named_arg<Args>::value...>();
-}
-
-template <typename... Args>
-constexpr auto count_statically_named_args() -> size_t {
- return count<is_statically_named_arg<Args>::value...>();
-}
-
-struct unformattable {};
-struct unformattable_char : unformattable {};
-struct unformattable_pointer : unformattable {};
-
-template <typename Char> struct string_value {
- const Char* data;
- size_t size;
-};
-
-template <typename Char> struct named_arg_value {
- const named_arg_info<Char>* data;
- size_t size;
-};
-
-template <typename Context> struct custom_value {
- using parse_context = typename Context::parse_context_type;
- void* value;
- void (*format)(void* arg, parse_context& parse_ctx, Context& ctx);
-};
-
-// A formatting argument value.
-template <typename Context> class value {
- public:
- using char_type = typename Context::char_type;
-
- union {
- monostate no_value;
- int int_value;
- unsigned uint_value;
- long long long_long_value;
- unsigned long long ulong_long_value;
- int128_opt int128_value;
- uint128_opt uint128_value;
- bool bool_value;
- char_type char_value;
- float float_value;
- double double_value;
- long double long_double_value;
- const void* pointer;
- string_value<char_type> string;
- custom_value<Context> custom;
- named_arg_value<char_type> named_args;
- };
-
- constexpr FMT_INLINE value() : no_value() {}
- constexpr FMT_INLINE value(int val) : int_value(val) {}
- constexpr FMT_INLINE value(unsigned val) : uint_value(val) {}
- constexpr FMT_INLINE value(long long val) : long_long_value(val) {}
- constexpr FMT_INLINE value(unsigned long long val) : ulong_long_value(val) {}
- FMT_INLINE value(int128_opt val) : int128_value(val) {}
- FMT_INLINE value(uint128_opt val) : uint128_value(val) {}
- constexpr FMT_INLINE value(float val) : float_value(val) {}
- constexpr FMT_INLINE value(double val) : double_value(val) {}
- FMT_INLINE value(long double val) : long_double_value(val) {}
- constexpr FMT_INLINE value(bool val) : bool_value(val) {}
- constexpr FMT_INLINE value(char_type val) : char_value(val) {}
- FMT_CONSTEXPR FMT_INLINE value(const char_type* val) {
- string.data = val;
- if (is_constant_evaluated()) string.size = {};
- }
- FMT_CONSTEXPR FMT_INLINE value(basic_string_view<char_type> val) {
- string.data = val.data();
- string.size = val.size();
- }
- FMT_INLINE value(const void* val) : pointer(val) {}
- FMT_INLINE value(const named_arg_info<char_type>* args, size_t size)
- : named_args{args, size} {}
-
- template <typename T> FMT_CONSTEXPR20 FMT_INLINE value(T& val) {
- using value_type = remove_const_t<T>;
- custom.value = const_cast<value_type*>(std::addressof(val));
- // Get the formatter type through the context to allow different contexts
- // have different extension points, e.g. `formatter<T>` for `format` and
- // `printf_formatter<T>` for `printf`.
- custom.format = format_custom_arg<
- value_type, typename Context::template formatter_type<value_type>>;
- }
- value(unformattable);
- value(unformattable_char);
- value(unformattable_pointer);
-
- private:
- // Formats an argument of a custom type, such as a user-defined class.
- template <typename T, typename Formatter>
- static void format_custom_arg(void* arg,
- typename Context::parse_context_type& parse_ctx,
- Context& ctx) {
- auto f = Formatter();
- parse_ctx.advance_to(f.parse(parse_ctx));
- using qualified_type =
- conditional_t<has_const_formatter<T, Context>(), const T, T>;
- // Calling format through a mutable reference is deprecated.
- ctx.advance_to(f.format(*static_cast<qualified_type*>(arg), ctx));
- }
-};
-
-// To minimize the number of types we need to deal with, long is translated
-// either to int or to long long depending on its size.
-enum { long_short = sizeof(long) == sizeof(int) };
-using long_type = conditional_t<long_short, int, long long>;
-using ulong_type = conditional_t<long_short, unsigned, unsigned long long>;
-
-template <typename T> struct format_as_result {
- template <typename U,
- FMT_ENABLE_IF(std::is_enum<U>::value || std::is_class<U>::value)>
- static auto map(U*) -> remove_cvref_t<decltype(format_as(std::declval<U>()))>;
- static auto map(...) -> void;
-
- using type = decltype(map(static_cast<T*>(nullptr)));
-};
-template <typename T> using format_as_t = typename format_as_result<T>::type;
-
-template <typename T>
-struct has_format_as
- : bool_constant<!std::is_same<format_as_t<T>, void>::value> {};
-
-// Maps formatting arguments to core types.
-// arg_mapper reports errors by returning unformattable instead of using
-// static_assert because it's used in the is_formattable trait.
-template <typename Context> struct arg_mapper {
- using char_type = typename Context::char_type;
-
- FMT_CONSTEXPR FMT_INLINE auto map(signed char val) -> int { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(unsigned char val) -> unsigned {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(short val) -> int { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(unsigned short val) -> unsigned {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(int val) -> int { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(unsigned val) -> unsigned { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(long val) -> long_type { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(unsigned long val) -> ulong_type {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(long long val) -> long long { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(unsigned long long val)
- -> unsigned long long {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(int128_opt val) -> int128_opt {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(uint128_opt val) -> uint128_opt {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(bool val) -> bool { return val; }
-
- template <typename T, FMT_ENABLE_IF(std::is_same<T, char>::value ||
- std::is_same<T, char_type>::value)>
- FMT_CONSTEXPR FMT_INLINE auto map(T val) -> char_type {
- return val;
- }
- template <typename T, enable_if_t<(std::is_same<T, wchar_t>::value ||
-#ifdef __cpp_char8_t
- std::is_same<T, char8_t>::value ||
-#endif
- std::is_same<T, char16_t>::value ||
- std::is_same<T, char32_t>::value) &&
- !std::is_same<T, char_type>::value,
- int> = 0>
- FMT_CONSTEXPR FMT_INLINE auto map(T) -> unformattable_char {
- return {};
- }
-
- FMT_CONSTEXPR FMT_INLINE auto map(float val) -> float { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(double val) -> double { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(long double val) -> long double {
- return val;
- }
-
- FMT_CONSTEXPR FMT_INLINE auto map(char_type* val) -> const char_type* {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(const char_type* val) -> const char_type* {
- return val;
- }
- template <typename T,
- FMT_ENABLE_IF(is_string<T>::value && !std::is_pointer<T>::value &&
- std::is_same<char_type, char_t<T>>::value)>
- FMT_CONSTEXPR FMT_INLINE auto map(const T& val)
- -> basic_string_view<char_type> {
- return to_string_view(val);
- }
- template <typename T,
- FMT_ENABLE_IF(is_string<T>::value && !std::is_pointer<T>::value &&
- !std::is_same<char_type, char_t<T>>::value)>
- FMT_CONSTEXPR FMT_INLINE auto map(const T&) -> unformattable_char {
- return {};
- }
-
- FMT_CONSTEXPR FMT_INLINE auto map(void* val) -> const void* { return val; }
- FMT_CONSTEXPR FMT_INLINE auto map(const void* val) -> const void* {
- return val;
- }
- FMT_CONSTEXPR FMT_INLINE auto map(std::nullptr_t val) -> const void* {
- return val;
- }
-
- // Use SFINAE instead of a const T* parameter to avoid a conflict with the
- // array overload.
- template <
- typename T,
- FMT_ENABLE_IF(
- std::is_pointer<T>::value || std::is_member_pointer<T>::value ||
- std::is_function<typename std::remove_pointer<T>::type>::value ||
- (std::is_array<T>::value &&
- !std::is_convertible<T, const char_type*>::value))>
- FMT_CONSTEXPR auto map(const T&) -> unformattable_pointer {
- return {};
- }
-
- template <typename T, std::size_t N,
- FMT_ENABLE_IF(!std::is_same<T, wchar_t>::value)>
- FMT_CONSTEXPR FMT_INLINE auto map(const T (&values)[N]) -> const T (&)[N] {
- return values;
- }
-
- // Only map owning types because mapping views can be unsafe.
- template <typename T, typename U = format_as_t<T>,
- FMT_ENABLE_IF(std::is_arithmetic<U>::value)>
- FMT_CONSTEXPR FMT_INLINE auto map(const T& val)
- -> decltype(FMT_DECLTYPE_THIS map(U())) {
- return map(format_as(val));
- }
-
- template <typename T, typename U = remove_const_t<T>>
- struct formattable : bool_constant<has_const_formatter<U, Context>() ||
- (has_formatter<U, Context>::value &&
- !std::is_const<T>::value)> {};
-
- template <typename T, FMT_ENABLE_IF(formattable<T>::value)>
- FMT_CONSTEXPR FMT_INLINE auto do_map(T& val) -> T& {
- return val;
- }
- template <typename T, FMT_ENABLE_IF(!formattable<T>::value)>
- FMT_CONSTEXPR FMT_INLINE auto do_map(T&) -> unformattable {
- return {};
- }
-
- template <typename T, typename U = remove_const_t<T>,
- FMT_ENABLE_IF((std::is_class<U>::value || std::is_enum<U>::value ||
- std::is_union<U>::value) &&
- !is_string<U>::value && !is_char<U>::value &&
- !is_named_arg<U>::value &&
- !std::is_arithmetic<format_as_t<U>>::value)>
- FMT_CONSTEXPR FMT_INLINE auto map(T& val)
- -> decltype(FMT_DECLTYPE_THIS do_map(val)) {
- return do_map(val);
- }
-
- template <typename T, FMT_ENABLE_IF(is_named_arg<T>::value)>
- FMT_CONSTEXPR FMT_INLINE auto map(const T& named_arg)
- -> decltype(FMT_DECLTYPE_THIS map(named_arg.value)) {
- return map(named_arg.value);
- }
-
- auto map(...) -> unformattable { return {}; }
-};
-
-// A type constant after applying arg_mapper<Context>.
-template <typename T, typename Context>
-using mapped_type_constant =
- type_constant<decltype(arg_mapper<Context>().map(std::declval<const T&>())),
- typename Context::char_type>;
-
-enum { packed_arg_bits = 4 };
-// Maximum number of arguments with packed types.
-enum { max_packed_args = 62 / packed_arg_bits };
-enum : unsigned long long { is_unpacked_bit = 1ULL << 63 };
-enum : unsigned long long { has_named_args_bit = 1ULL << 62 };
-
-template <typename Char, typename InputIt>
-auto copy_str(InputIt begin, InputIt end, appender out) -> appender {
- get_container(out).append(begin, end);
- return out;
-}
-template <typename Char, typename InputIt>
-auto copy_str(InputIt begin, InputIt end,
- std::back_insert_iterator<std::string> out)
- -> std::back_insert_iterator<std::string> {
- get_container(out).append(begin, end);
- return out;
-}
-
-template <typename Char, typename R, typename OutputIt>
-FMT_CONSTEXPR auto copy_str(R&& rng, OutputIt out) -> OutputIt {
- return detail::copy_str<Char>(rng.begin(), rng.end(), out);
-}
-
-#if FMT_GCC_VERSION && FMT_GCC_VERSION < 500
-// A workaround for gcc 4.8 to make void_t work in a SFINAE context.
-template <typename...> struct void_t_impl {
- using type = void;
-};
-template <typename... T> using void_t = typename void_t_impl<T...>::type;
-#else
-template <typename...> using void_t = void;
-#endif
-
-template <typename It, typename T, typename Enable = void>
-struct is_output_iterator : std::false_type {};
-
-template <typename It, typename T>
-struct is_output_iterator<
- It, T,
- void_t<typename std::iterator_traits<It>::iterator_category,
- decltype(*std::declval<It>() = std::declval<T>())>>
- : std::true_type {};
-
-template <typename It> struct is_back_insert_iterator : std::false_type {};
-template <typename Container>
-struct is_back_insert_iterator<std::back_insert_iterator<Container>>
- : std::true_type {};
-
-// A type-erased reference to an std::locale to avoid a heavy <locale> include.
-class locale_ref {
- private:
- const void* locale_; // A type-erased pointer to std::locale.
-
- public:
- constexpr FMT_INLINE locale_ref() : locale_(nullptr) {}
- template <typename Locale> explicit locale_ref(const Locale& loc);
-
- explicit operator bool() const noexcept { return locale_ != nullptr; }
-
- template <typename Locale> auto get() const -> Locale;
-};
-
-template <typename> constexpr auto encode_types() -> unsigned long long {
- return 0;
-}
-
-template <typename Context, typename Arg, typename... Args>
-constexpr auto encode_types() -> unsigned long long {
- return static_cast<unsigned>(mapped_type_constant<Arg, Context>::value) |
- (encode_types<Context, Args...>() << packed_arg_bits);
-}
-
-#if defined(__cpp_if_constexpr)
-// This type is intentionally undefined, only used for errors
-template <typename T, typename Char> struct type_is_unformattable_for;
-#endif
-
-template <bool PACKED, typename Context, typename T, FMT_ENABLE_IF(PACKED)>
-FMT_CONSTEXPR FMT_INLINE auto make_arg(T& val) -> value<Context> {
- using arg_type = remove_cvref_t<decltype(arg_mapper<Context>().map(val))>;
-
- constexpr bool formattable_char =
- !std::is_same<arg_type, unformattable_char>::value;
- static_assert(formattable_char, "Mixing character types is disallowed.");
-
- // Formatting of arbitrary pointers is disallowed. If you want to format a
- // pointer cast it to `void*` or `const void*`. In particular, this forbids
- // formatting of `[const] volatile char*` printed as bool by iostreams.
- constexpr bool formattable_pointer =
- !std::is_same<arg_type, unformattable_pointer>::value;
- static_assert(formattable_pointer,
- "Formatting of non-void pointers is disallowed.");
-
- constexpr bool formattable = !std::is_same<arg_type, unformattable>::value;
-#if defined(__cpp_if_constexpr)
- if constexpr (!formattable) {
- type_is_unformattable_for<T, typename Context::char_type> _;
- }
-#endif
- static_assert(
- formattable,
- "Cannot format an argument. To make type T formattable provide a "
- "formatter<T> specialization: https://fmt.dev/latest/api.html#udt");
- return {arg_mapper<Context>().map(val)};
-}
-
-template <typename Context, typename T>
-FMT_CONSTEXPR auto make_arg(T& val) -> basic_format_arg<Context> {
- auto arg = basic_format_arg<Context>();
- arg.type_ = mapped_type_constant<T, Context>::value;
- arg.value_ = make_arg<true, Context>(val);
- return arg;
-}
-
-template <bool PACKED, typename Context, typename T, FMT_ENABLE_IF(!PACKED)>
-FMT_CONSTEXPR inline auto make_arg(T& val) -> basic_format_arg<Context> {
- return make_arg<Context>(val);
-}
-} // namespace detail
-FMT_BEGIN_EXPORT
-
-// A formatting argument. Context is a template parameter for the compiled API
-// where output can be unbuffered.
-template <typename Context> class basic_format_arg {
- private:
- detail::value<Context> value_;
- detail::type type_;
-
- template <typename ContextType, typename T>
- friend FMT_CONSTEXPR auto detail::make_arg(T& value)
- -> basic_format_arg<ContextType>;
-
- template <typename Visitor, typename Ctx>
- friend FMT_CONSTEXPR auto visit_format_arg(Visitor&& vis,
- const basic_format_arg<Ctx>& arg)
- -> decltype(vis(0));
-
- friend class basic_format_args<Context>;
- friend class dynamic_format_arg_store<Context>;
-
- using char_type = typename Context::char_type;
-
- template <typename T, typename Char, size_t NUM_ARGS, size_t NUM_NAMED_ARGS>
- friend struct detail::arg_data;
-
- basic_format_arg(const detail::named_arg_info<char_type>* args, size_t size)
- : value_(args, size) {}
-
- public:
- class handle {
- public:
- explicit handle(detail::custom_value<Context> custom) : custom_(custom) {}
-
- void format(typename Context::parse_context_type& parse_ctx,
- Context& ctx) const {
- custom_.format(custom_.value, parse_ctx, ctx);
- }
-
- private:
- detail::custom_value<Context> custom_;
- };
-
- constexpr basic_format_arg() : type_(detail::type::none_type) {}
-
- constexpr explicit operator bool() const noexcept {
- return type_ != detail::type::none_type;
- }
-
- auto type() const -> detail::type { return type_; }
-
- auto is_integral() const -> bool { return detail::is_integral_type(type_); }
- auto is_arithmetic() const -> bool {
- return detail::is_arithmetic_type(type_);
- }
-
- FMT_INLINE auto format_custom(const char_type* parse_begin,
- typename Context::parse_context_type& parse_ctx,
- Context& ctx) -> bool {
- if (type_ != detail::type::custom_type) return false;
- parse_ctx.advance_to(parse_begin);
- value_.custom.format(value_.custom.value, parse_ctx, ctx);
- return true;
- }
-};
-
-/**
- \rst
- Visits an argument dispatching to the appropriate visit method based on
- the argument type. For example, if the argument type is ``double`` then
- ``vis(value)`` will be called with the value of type ``double``.
- \endrst
- */
-// DEPRECATED!
-template <typename Visitor, typename Context>
-FMT_CONSTEXPR FMT_INLINE auto visit_format_arg(
- Visitor&& vis, const basic_format_arg<Context>& arg) -> decltype(vis(0)) {
- switch (arg.type_) {
- case detail::type::none_type:
- break;
- case detail::type::int_type:
- return vis(arg.value_.int_value);
- case detail::type::uint_type:
- return vis(arg.value_.uint_value);
- case detail::type::long_long_type:
- return vis(arg.value_.long_long_value);
- case detail::type::ulong_long_type:
- return vis(arg.value_.ulong_long_value);
- case detail::type::int128_type:
- return vis(detail::convert_for_visit(arg.value_.int128_value));
- case detail::type::uint128_type:
- return vis(detail::convert_for_visit(arg.value_.uint128_value));
- case detail::type::bool_type:
- return vis(arg.value_.bool_value);
- case detail::type::char_type:
- return vis(arg.value_.char_value);
- case detail::type::float_type:
- return vis(arg.value_.float_value);
- case detail::type::double_type:
- return vis(arg.value_.double_value);
- case detail::type::long_double_type:
- return vis(arg.value_.long_double_value);
- case detail::type::cstring_type:
- return vis(arg.value_.string.data);
- case detail::type::string_type:
- using sv = basic_string_view<typename Context::char_type>;
- return vis(sv(arg.value_.string.data, arg.value_.string.size));
- case detail::type::pointer_type:
- return vis(arg.value_.pointer);
- case detail::type::custom_type:
- return vis(typename basic_format_arg<Context>::handle(arg.value_.custom));
- }
- return vis(monostate());
-}
-
-// Formatting context.
-template <typename OutputIt, typename Char> class basic_format_context {
- private:
- OutputIt out_;
- basic_format_args<basic_format_context> args_;
- detail::locale_ref loc_;
-
- public:
- using iterator = OutputIt;
- using format_arg = basic_format_arg<basic_format_context>;
- using format_args = basic_format_args<basic_format_context>;
- using parse_context_type = basic_format_parse_context<Char>;
- template <typename T> using formatter_type = formatter<T, Char>;
-
- /** The character type for the output. */
- using char_type = Char;
-
- basic_format_context(basic_format_context&&) = default;
- basic_format_context(const basic_format_context&) = delete;
- void operator=(const basic_format_context&) = delete;
- /**
- Constructs a ``basic_format_context`` object. References to the arguments
- are stored in the object so make sure they have appropriate lifetimes.
- */
- constexpr basic_format_context(OutputIt out, format_args ctx_args,
- detail::locale_ref loc = {})
- : out_(out), args_(ctx_args), loc_(loc) {}
-
- constexpr auto arg(int id) const -> format_arg { return args_.get(id); }
- FMT_CONSTEXPR auto arg(basic_string_view<Char> name) -> format_arg {
- return args_.get(name);
- }
- FMT_CONSTEXPR auto arg_id(basic_string_view<Char> name) -> int {
- return args_.get_id(name);
- }
- auto args() const -> const format_args& { return args_; }
-
- // DEPRECATED!
- FMT_CONSTEXPR auto error_handler() -> detail::error_handler { return {}; }
- void on_error(const char* message) { error_handler().on_error(message); }
-
- // Returns an iterator to the beginning of the output range.
- FMT_CONSTEXPR auto out() -> iterator { return out_; }
-
- // Advances the begin iterator to ``it``.
- void advance_to(iterator it) {
- if (!detail::is_back_insert_iterator<iterator>()) out_ = it;
- }
-
- FMT_CONSTEXPR auto locale() -> detail::locale_ref { return loc_; }
-};
-
-template <typename Char>
-using buffer_context =
- basic_format_context<detail::buffer_appender<Char>, Char>;
-using format_context = buffer_context<char>;
-
-template <typename T, typename Char = char>
-using is_formattable = bool_constant<!std::is_base_of<
- detail::unformattable, decltype(detail::arg_mapper<buffer_context<Char>>()
- .map(std::declval<T&>()))>::value>;
-
-/**
- \rst
- An array of references to arguments. It can be implicitly converted into
- `~fmt::basic_format_args` for passing into type-erased formatting functions
- such as `~fmt::vformat`.
- \endrst
- */
-template <typename Context, typename... Args>
-class format_arg_store
-#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
- // Workaround a GCC template argument substitution bug.
- : public basic_format_args<Context>
-#endif
-{
- private:
- static const size_t num_args = sizeof...(Args);
- static constexpr size_t num_named_args = detail::count_named_args<Args...>();
- static const bool is_packed = num_args <= detail::max_packed_args;
-
- using value_type = conditional_t<is_packed, detail::value<Context>,
- basic_format_arg<Context>>;
-
- detail::arg_data<value_type, typename Context::char_type, num_args,
- num_named_args>
- data_;
-
- friend class basic_format_args<Context>;
-
- static constexpr unsigned long long desc =
- (is_packed ? detail::encode_types<Context, Args...>()
- : detail::is_unpacked_bit | num_args) |
- (num_named_args != 0
- ? static_cast<unsigned long long>(detail::has_named_args_bit)
- : 0);
-
- public:
- template <typename... T>
- FMT_CONSTEXPR FMT_INLINE format_arg_store(T&... args)
- :
-#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
- basic_format_args<Context>(*this),
-#endif
- data_{detail::make_arg<is_packed, Context>(args)...} {
- if (detail::const_check(num_named_args != 0))
- detail::init_named_args(data_.named_args(), 0, 0, args...);
- }
-};
-
-/**
- \rst
- Constructs a `~fmt::format_arg_store` object that contains references to
- arguments and can be implicitly converted to `~fmt::format_args`. `Context`
- can be omitted in which case it defaults to `~fmt::format_context`.
- See `~fmt::arg` for lifetime considerations.
- \endrst
- */
-// Arguments are taken by lvalue references to avoid some lifetime issues.
-template <typename Context = format_context, typename... T>
-constexpr auto make_format_args(T&... args)
- -> format_arg_store<Context, remove_cvref_t<T>...> {
- return {args...};
-}
-
-/**
- \rst
- Returns a named argument to be used in a formatting function.
- It should only be used in a call to a formatting function or
- `dynamic_format_arg_store::push_back`.
-
- **Example**::
-
- fmt::print("Elapsed time: {s:.2f} seconds", fmt::arg("s", 1.23));
- \endrst
- */
-template <typename Char, typename T>
-inline auto arg(const Char* name, const T& arg) -> detail::named_arg<Char, T> {
- static_assert(!detail::is_named_arg<T>(), "nested named arguments");
- return {name, arg};
-}
-FMT_END_EXPORT
-
-/**
- \rst
- A view of a collection of formatting arguments. To avoid lifetime issues it
- should only be used as a parameter type in type-erased functions such as
- ``vformat``::
-
- void vlog(string_view format_str, format_args args); // OK
- format_args args = make_format_args(); // Error: dangling reference
- \endrst
- */
-template <typename Context> class basic_format_args {
- public:
- using size_type = int;
- using format_arg = basic_format_arg<Context>;
-
- private:
- // A descriptor that contains information about formatting arguments.
- // If the number of arguments is less or equal to max_packed_args then
- // argument types are passed in the descriptor. This reduces binary code size
- // per formatting function call.
- unsigned long long desc_;
- union {
- // If is_packed() returns true then argument values are stored in values_;
- // otherwise they are stored in args_. This is done to improve cache
- // locality and reduce compiled code size since storing larger objects
- // may require more code (at least on x86-64) even if the same amount of
- // data is actually copied to stack. It saves ~10% on the bloat test.
- const detail::value<Context>* values_;
- const format_arg* args_;
- };
-
- constexpr auto is_packed() const -> bool {
- return (desc_ & detail::is_unpacked_bit) == 0;
- }
- auto has_named_args() const -> bool {
- return (desc_ & detail::has_named_args_bit) != 0;
- }
-
- FMT_CONSTEXPR auto type(int index) const -> detail::type {
- int shift = index * detail::packed_arg_bits;
- unsigned int mask = (1 << detail::packed_arg_bits) - 1;
- return static_cast<detail::type>((desc_ >> shift) & mask);
- }
-
- constexpr FMT_INLINE basic_format_args(unsigned long long desc,
- const detail::value<Context>* values)
- : desc_(desc), values_(values) {}
- constexpr basic_format_args(unsigned long long desc, const format_arg* args)
- : desc_(desc), args_(args) {}
-
- public:
- constexpr basic_format_args() : desc_(0), args_(nullptr) {}
-
- /**
- \rst
- Constructs a `basic_format_args` object from `~fmt::format_arg_store`.
- \endrst
- */
- template <typename... Args>
- constexpr FMT_INLINE basic_format_args(
- const format_arg_store<Context, Args...>& store)
- : basic_format_args(format_arg_store<Context, Args...>::desc,
- store.data_.args()) {}
-
- /**
- \rst
- Constructs a `basic_format_args` object from
- `~fmt::dynamic_format_arg_store`.
- \endrst
- */
- constexpr FMT_INLINE basic_format_args(
- const dynamic_format_arg_store<Context>& store)
- : basic_format_args(store.get_types(), store.data()) {}
-
- /**
- \rst
- Constructs a `basic_format_args` object from a dynamic set of arguments.
- \endrst
- */
- constexpr basic_format_args(const format_arg* args, int count)
- : basic_format_args(detail::is_unpacked_bit | detail::to_unsigned(count),
- args) {}
-
- /** Returns the argument with the specified id. */
- FMT_CONSTEXPR auto get(int id) const -> format_arg {
- format_arg arg;
- if (!is_packed()) {
- if (id < max_size()) arg = args_[id];
- return arg;
- }
- if (id >= detail::max_packed_args) return arg;
- arg.type_ = type(id);
- if (arg.type_ == detail::type::none_type) return arg;
- arg.value_ = values_[id];
- return arg;
- }
-
- template <typename Char>
- auto get(basic_string_view<Char> name) const -> format_arg {
- int id = get_id(name);
- return id >= 0 ? get(id) : format_arg();
- }
-
- template <typename Char>
- auto get_id(basic_string_view<Char> name) const -> int {
- if (!has_named_args()) return -1;
- const auto& named_args =
- (is_packed() ? values_[-1] : args_[-1].value_).named_args;
- for (size_t i = 0; i < named_args.size; ++i) {
- if (named_args.data[i].name == name) return named_args.data[i].id;
- }
- return -1;
- }
-
- auto max_size() const -> int {
- unsigned long long max_packed = detail::max_packed_args;
- return static_cast<int>(is_packed() ? max_packed
- : desc_ & ~detail::is_unpacked_bit);
- }
-};
-
-/** An alias to ``basic_format_args<format_context>``. */
-// A separate type would result in shorter symbols but break ABI compatibility
-// between clang and gcc on ARM (#1919).
-FMT_EXPORT using format_args = basic_format_args<format_context>;
-
-// We cannot use enum classes as bit fields because of a gcc bug, so we put them
-// in namespaces instead (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61414).
-// Additionally, if an underlying type is specified, older gcc incorrectly warns
-// that the type is too small. Both bugs are fixed in gcc 9.3.
-#if FMT_GCC_VERSION && FMT_GCC_VERSION < 903
-# define FMT_ENUM_UNDERLYING_TYPE(type)
-#else
-# define FMT_ENUM_UNDERLYING_TYPE(type) : type
-#endif
-namespace align {
-enum type FMT_ENUM_UNDERLYING_TYPE(unsigned char){none, left, right, center,
- numeric};
-}
-using align_t = align::type;
-namespace sign {
-enum type FMT_ENUM_UNDERLYING_TYPE(unsigned char){none, minus, plus, space};
-}
-using sign_t = sign::type;
-
-namespace detail {
-
-// Workaround an array initialization issue in gcc 4.8.
-template <typename Char> struct fill_t {
- private:
- enum { max_size = 4 };
- Char data_[max_size] = {Char(' '), Char(0), Char(0), Char(0)};
- unsigned char size_ = 1;
-
- public:
- FMT_CONSTEXPR void operator=(basic_string_view<Char> s) {
- auto size = s.size();
- FMT_ASSERT(size <= max_size, "invalid fill");
- for (size_t i = 0; i < size; ++i) data_[i] = s[i];
- size_ = static_cast<unsigned char>(size);
- }
-
- constexpr auto size() const -> size_t { return size_; }
- constexpr auto data() const -> const Char* { return data_; }
-
- FMT_CONSTEXPR auto operator[](size_t index) -> Char& { return data_[index]; }
- FMT_CONSTEXPR auto operator[](size_t index) const -> const Char& {
- return data_[index];
- }
-};
-} // namespace detail
-
-enum class presentation_type : unsigned char {
- none,
- dec, // 'd'
- oct, // 'o'
- hex_lower, // 'x'
- hex_upper, // 'X'
- bin_lower, // 'b'
- bin_upper, // 'B'
- hexfloat_lower, // 'a'
- hexfloat_upper, // 'A'
- exp_lower, // 'e'
- exp_upper, // 'E'
- fixed_lower, // 'f'
- fixed_upper, // 'F'
- general_lower, // 'g'
- general_upper, // 'G'
- chr, // 'c'
- string, // 's'
- pointer, // 'p'
- debug // '?'
-};
-
-// Format specifiers for built-in and string types.
-template <typename Char = char> struct format_specs {
- int width;
- int precision;
- presentation_type type;
- align_t align : 4;
- sign_t sign : 3;
- bool alt : 1; // Alternate form ('#').
- bool localized : 1;
- detail::fill_t<Char> fill;
-
- constexpr format_specs()
- : width(0),
- precision(-1),
- type(presentation_type::none),
- align(align::none),
- sign(sign::none),
- alt(false),
- localized(false) {}
-};
-
-namespace detail {
-
-enum class arg_id_kind { none, index, name };
-
-// An argument reference.
-template <typename Char> struct arg_ref {
- FMT_CONSTEXPR arg_ref() : kind(arg_id_kind::none), val() {}
-
- FMT_CONSTEXPR explicit arg_ref(int index)
- : kind(arg_id_kind::index), val(index) {}
- FMT_CONSTEXPR explicit arg_ref(basic_string_view<Char> name)
- : kind(arg_id_kind::name), val(name) {}
-
- FMT_CONSTEXPR auto operator=(int idx) -> arg_ref& {
- kind = arg_id_kind::index;
- val.index = idx;
- return *this;
- }
-
- arg_id_kind kind;
- union value {
- FMT_CONSTEXPR value(int idx = 0) : index(idx) {}
- FMT_CONSTEXPR value(basic_string_view<Char> n) : name(n) {}
-
- int index;
- basic_string_view<Char> name;
- } val;
-};
-
-// Format specifiers with width and precision resolved at formatting rather
-// than parsing time to allow reusing the same parsed specifiers with
-// different sets of arguments (precompilation of format strings).
-template <typename Char = char>
-struct dynamic_format_specs : format_specs<Char> {
- arg_ref<Char> width_ref;
- arg_ref<Char> precision_ref;
-};
-
-// Converts a character to ASCII. Returns '\0' on conversion failure.
-template <typename Char, FMT_ENABLE_IF(std::is_integral<Char>::value)>
-constexpr auto to_ascii(Char c) -> char {
- return c <= 0xff ? static_cast<char>(c) : '\0';
-}
-template <typename Char, FMT_ENABLE_IF(std::is_enum<Char>::value)>
-constexpr auto to_ascii(Char c) -> char {
- return c <= 0xff ? static_cast<char>(c) : '\0';
-}
-
-// Returns the number of code units in a code point or 1 on error.
-template <typename Char>
-FMT_CONSTEXPR auto code_point_length(const Char* begin) -> int {
- if (const_check(sizeof(Char) != 1)) return 1;
- auto c = static_cast<unsigned char>(*begin);
- return static_cast<int>((0x3a55000000000000ull >> (2 * (c >> 3))) & 0x3) + 1;
-}
-
-// Return the result via the out param to workaround gcc bug 77539.
-template <bool IS_CONSTEXPR, typename T, typename Ptr = const T*>
-FMT_CONSTEXPR auto find(Ptr first, Ptr last, T value, Ptr& out) -> bool {
- for (out = first; out != last; ++out) {
- if (*out == value) return true;
- }
- return false;
-}
-
-template <>
-inline auto find<false, char>(const char* first, const char* last, char value,
- const char*& out) -> bool {
- out = static_cast<const char*>(
- std::memchr(first, value, to_unsigned(last - first)));
- return out != nullptr;
-}
-
-// Parses the range [begin, end) as an unsigned integer. This function assumes
-// that the range is non-empty and the first character is a digit.
-template <typename Char>
-FMT_CONSTEXPR auto parse_nonnegative_int(const Char*& begin, const Char* end,
- int error_value) noexcept -> int {
- FMT_ASSERT(begin != end && '0' <= *begin && *begin <= '9', "");
- unsigned value = 0, prev = 0;
- auto p = begin;
- do {
- prev = value;
- value = value * 10 + unsigned(*p - '0');
- ++p;
- } while (p != end && '0' <= *p && *p <= '9');
- auto num_digits = p - begin;
- begin = p;
- if (num_digits <= std::numeric_limits<int>::digits10)
- return static_cast<int>(value);
- // Check for overflow.
- const unsigned max = to_unsigned((std::numeric_limits<int>::max)());
- return num_digits == std::numeric_limits<int>::digits10 + 1 &&
- prev * 10ull + unsigned(p[-1] - '0') <= max
- ? static_cast<int>(value)
- : error_value;
-}
-
-FMT_CONSTEXPR inline auto parse_align(char c) -> align_t {
- switch (c) {
- case '<':
- return align::left;
- case '>':
- return align::right;
- case '^':
- return align::center;
- }
- return align::none;
-}
-
-template <typename Char> constexpr auto is_name_start(Char c) -> bool {
- return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || c == '_';
-}
-
-template <typename Char, typename Handler>
-FMT_CONSTEXPR auto do_parse_arg_id(const Char* begin, const Char* end,
- Handler&& handler) -> const Char* {
- Char c = *begin;
- if (c >= '0' && c <= '9') {
- int index = 0;
- constexpr int max = (std::numeric_limits<int>::max)();
- if (c != '0')
- index = parse_nonnegative_int(begin, end, max);
- else
- ++begin;
- if (begin == end || (*begin != '}' && *begin != ':'))
- throw_format_error("invalid format string");
- else
- handler.on_index(index);
- return begin;
- }
- if (!is_name_start(c)) {
- throw_format_error("invalid format string");
- return begin;
- }
- auto it = begin;
- do {
- ++it;
- } while (it != end && (is_name_start(*it) || ('0' <= *it && *it <= '9')));
- handler.on_name({begin, to_unsigned(it - begin)});
- return it;
-}
-
-template <typename Char, typename Handler>
-FMT_CONSTEXPR FMT_INLINE auto parse_arg_id(const Char* begin, const Char* end,
- Handler&& handler) -> const Char* {
- FMT_ASSERT(begin != end, "");
- Char c = *begin;
- if (c != '}' && c != ':') return do_parse_arg_id(begin, end, handler);
- handler.on_auto();
- return begin;
-}
-
-template <typename Char> struct dynamic_spec_id_handler {
- basic_format_parse_context<Char>& ctx;
- arg_ref<Char>& ref;
-
- FMT_CONSTEXPR void on_auto() {
- int id = ctx.next_arg_id();
- ref = arg_ref<Char>(id);
- ctx.check_dynamic_spec(id);
- }
- FMT_CONSTEXPR void on_index(int id) {
- ref = arg_ref<Char>(id);
- ctx.check_arg_id(id);
- ctx.check_dynamic_spec(id);
- }
- FMT_CONSTEXPR void on_name(basic_string_view<Char> id) {
- ref = arg_ref<Char>(id);
- ctx.check_arg_id(id);
- }
-};
-
-// Parses [integer | "{" [arg_id] "}"].
-template <typename Char>
-FMT_CONSTEXPR auto parse_dynamic_spec(const Char* begin, const Char* end,
- int& value, arg_ref<Char>& ref,
- basic_format_parse_context<Char>& ctx)
- -> const Char* {
- FMT_ASSERT(begin != end, "");
- if ('0' <= *begin && *begin <= '9') {
- int val = parse_nonnegative_int(begin, end, -1);
- if (val != -1)
- value = val;
- else
- throw_format_error("number is too big");
- } else if (*begin == '{') {
- ++begin;
- auto handler = dynamic_spec_id_handler<Char>{ctx, ref};
- if (begin != end) begin = parse_arg_id(begin, end, handler);
- if (begin != end && *begin == '}') return ++begin;
- throw_format_error("invalid format string");
- }
- return begin;
-}
-
-template <typename Char>
-FMT_CONSTEXPR auto parse_precision(const Char* begin, const Char* end,
- int& value, arg_ref<Char>& ref,
- basic_format_parse_context<Char>& ctx)
- -> const Char* {
- ++begin;
- if (begin == end || *begin == '}') {
- throw_format_error("invalid precision");
- return begin;
- }
- return parse_dynamic_spec(begin, end, value, ref, ctx);
-}
-
-enum class state { start, align, sign, hash, zero, width, precision, locale };
-
-// Parses standard format specifiers.
-template <typename Char>
-FMT_CONSTEXPR FMT_INLINE auto parse_format_specs(
- const Char* begin, const Char* end, dynamic_format_specs<Char>& specs,
- basic_format_parse_context<Char>& ctx, type arg_type) -> const Char* {
- auto c = '\0';
- if (end - begin > 1) {
- auto next = to_ascii(begin[1]);
- c = parse_align(next) == align::none ? to_ascii(*begin) : '\0';
- } else {
- if (begin == end) return begin;
- c = to_ascii(*begin);
- }
-
- struct {
- state current_state = state::start;
- FMT_CONSTEXPR void operator()(state s, bool valid = true) {
- if (current_state >= s || !valid)
- throw_format_error("invalid format specifier");
- current_state = s;
- }
- } enter_state;
-
- using pres = presentation_type;
- constexpr auto integral_set = sint_set | uint_set | bool_set | char_set;
- struct {
- const Char*& begin;
- dynamic_format_specs<Char>& specs;
- type arg_type;
-
- FMT_CONSTEXPR auto operator()(pres pres_type, int set) -> const Char* {
- if (!in(arg_type, set)) {
- if (arg_type == type::none_type) return begin;
- throw_format_error("invalid format specifier");
- }
- specs.type = pres_type;
- return begin + 1;
- }
- } parse_presentation_type{begin, specs, arg_type};
-
- for (;;) {
- switch (c) {
- case '<':
- case '>':
- case '^':
- enter_state(state::align);
- specs.align = parse_align(c);
- ++begin;
- break;
- case '+':
- case '-':
- case ' ':
- if (arg_type == type::none_type) return begin;
- enter_state(state::sign, in(arg_type, sint_set | float_set));
- switch (c) {
- case '+':
- specs.sign = sign::plus;
- break;
- case '-':
- specs.sign = sign::minus;
- break;
- case ' ':
- specs.sign = sign::space;
- break;
- }
- ++begin;
- break;
- case '#':
- if (arg_type == type::none_type) return begin;
- enter_state(state::hash, is_arithmetic_type(arg_type));
- specs.alt = true;
- ++begin;
- break;
- case '0':
- enter_state(state::zero);
- if (!is_arithmetic_type(arg_type)) {
- if (arg_type == type::none_type) return begin;
- throw_format_error("format specifier requires numeric argument");
- }
- if (specs.align == align::none) {
- // Ignore 0 if align is specified for compatibility with std::format.
- specs.align = align::numeric;
- specs.fill[0] = Char('0');
- }
- ++begin;
- break;
- case '1':
- case '2':
- case '3':
- case '4':
- case '5':
- case '6':
- case '7':
- case '8':
- case '9':
- case '{':
- enter_state(state::width);
- begin = parse_dynamic_spec(begin, end, specs.width, specs.width_ref, ctx);
- break;
- case '.':
- if (arg_type == type::none_type) return begin;
- enter_state(state::precision,
- in(arg_type, float_set | string_set | cstring_set));
- begin = parse_precision(begin, end, specs.precision, specs.precision_ref,
- ctx);
- break;
- case 'L':
- if (arg_type == type::none_type) return begin;
- enter_state(state::locale, is_arithmetic_type(arg_type));
- specs.localized = true;
- ++begin;
- break;
- case 'd':
- return parse_presentation_type(pres::dec, integral_set);
- case 'o':
- return parse_presentation_type(pres::oct, integral_set);
- case 'x':
- return parse_presentation_type(pres::hex_lower, integral_set);
- case 'X':
- return parse_presentation_type(pres::hex_upper, integral_set);
- case 'b':
- return parse_presentation_type(pres::bin_lower, integral_set);
- case 'B':
- return parse_presentation_type(pres::bin_upper, integral_set);
- case 'a':
- return parse_presentation_type(pres::hexfloat_lower, float_set);
- case 'A':
- return parse_presentation_type(pres::hexfloat_upper, float_set);
- case 'e':
- return parse_presentation_type(pres::exp_lower, float_set);
- case 'E':
- return parse_presentation_type(pres::exp_upper, float_set);
- case 'f':
- return parse_presentation_type(pres::fixed_lower, float_set);
- case 'F':
- return parse_presentation_type(pres::fixed_upper, float_set);
- case 'g':
- return parse_presentation_type(pres::general_lower, float_set);
- case 'G':
- return parse_presentation_type(pres::general_upper, float_set);
- case 'c':
- if (arg_type == type::bool_type)
- throw_format_error("invalid format specifier");
- return parse_presentation_type(pres::chr, integral_set);
- case 's':
- return parse_presentation_type(pres::string,
- bool_set | string_set | cstring_set);
- case 'p':
- return parse_presentation_type(pres::pointer, pointer_set | cstring_set);
- case '?':
- return parse_presentation_type(pres::debug,
- char_set | string_set | cstring_set);
- case '}':
- return begin;
- default: {
- if (*begin == '}') return begin;
- // Parse fill and alignment.
- auto fill_end = begin + code_point_length(begin);
- if (end - fill_end <= 0) {
- throw_format_error("invalid format specifier");
- return begin;
- }
- if (*begin == '{') {
- throw_format_error("invalid fill character '{'");
- return begin;
- }
- auto align = parse_align(to_ascii(*fill_end));
- enter_state(state::align, align != align::none);
- specs.fill = {begin, to_unsigned(fill_end - begin)};
- specs.align = align;
- begin = fill_end + 1;
- }
- }
- if (begin == end) return begin;
- c = to_ascii(*begin);
- }
-}
-
-template <typename Char, typename Handler>
-FMT_CONSTEXPR auto parse_replacement_field(const Char* begin, const Char* end,
- Handler&& handler) -> const Char* {
- struct id_adapter {
- Handler& handler;
- int arg_id;
-
- FMT_CONSTEXPR void on_auto() { arg_id = handler.on_arg_id(); }
- FMT_CONSTEXPR void on_index(int id) { arg_id = handler.on_arg_id(id); }
- FMT_CONSTEXPR void on_name(basic_string_view<Char> id) {
- arg_id = handler.on_arg_id(id);
- }
- };
-
- ++begin;
- if (begin == end) return handler.on_error("invalid format string"), end;
- if (*begin == '}') {
- handler.on_replacement_field(handler.on_arg_id(), begin);
- } else if (*begin == '{') {
- handler.on_text(begin, begin + 1);
- } else {
- auto adapter = id_adapter{handler, 0};
- begin = parse_arg_id(begin, end, adapter);
- Char c = begin != end ? *begin : Char();
- if (c == '}') {
- handler.on_replacement_field(adapter.arg_id, begin);
- } else if (c == ':') {
- begin = handler.on_format_specs(adapter.arg_id, begin + 1, end);
- if (begin == end || *begin != '}')
- return handler.on_error("unknown format specifier"), end;
- } else {
- return handler.on_error("missing '}' in format string"), end;
- }
- }
- return begin + 1;
-}
-
-template <bool IS_CONSTEXPR, typename Char, typename Handler>
-FMT_CONSTEXPR FMT_INLINE void parse_format_string(
- basic_string_view<Char> format_str, Handler&& handler) {
- auto begin = format_str.data();
- auto end = begin + format_str.size();
- if (end - begin < 32) {
- // Use a simple loop instead of memchr for small strings.
- const Char* p = begin;
- while (p != end) {
- auto c = *p++;
- if (c == '{') {
- handler.on_text(begin, p - 1);
- begin = p = parse_replacement_field(p - 1, end, handler);
- } else if (c == '}') {
- if (p == end || *p != '}')
- return handler.on_error("unmatched '}' in format string");
- handler.on_text(begin, p);
- begin = ++p;
- }
- }
- handler.on_text(begin, end);
- return;
- }
- struct writer {
- FMT_CONSTEXPR void operator()(const Char* from, const Char* to) {
- if (from == to) return;
- for (;;) {
- const Char* p = nullptr;
- if (!find<IS_CONSTEXPR>(from, to, Char('}'), p))
- return handler_.on_text(from, to);
- ++p;
- if (p == to || *p != '}')
- return handler_.on_error("unmatched '}' in format string");
- handler_.on_text(from, p);
- from = p + 1;
- }
- }
- Handler& handler_;
- } write = {handler};
- while (begin != end) {
- // Doing two passes with memchr (one for '{' and another for '}') is up to
- // 2.5x faster than the naive one-pass implementation on big format strings.
- const Char* p = begin;
- if (*begin != '{' && !find<IS_CONSTEXPR>(begin + 1, end, Char('{'), p))
- return write(begin, end);
- write(begin, p);
- begin = parse_replacement_field(p, end, handler);
- }
-}
-
-template <typename T, bool = is_named_arg<T>::value> struct strip_named_arg {
- using type = T;
-};
-template <typename T> struct strip_named_arg<T, true> {
- using type = remove_cvref_t<decltype(T::value)>;
-};
-
-template <typename T, typename ParseContext>
-FMT_CONSTEXPR auto parse_format_specs(ParseContext& ctx)
- -> decltype(ctx.begin()) {
- using char_type = typename ParseContext::char_type;
- using context = buffer_context<char_type>;
- using mapped_type = conditional_t<
- mapped_type_constant<T, context>::value != type::custom_type,
- decltype(arg_mapper<context>().map(std::declval<const T&>())),
- typename strip_named_arg<T>::type>;
-#if defined(__cpp_if_constexpr)
- if constexpr (std::is_default_constructible<
- formatter<mapped_type, char_type>>::value) {
- return formatter<mapped_type, char_type>().parse(ctx);
- } else {
- type_is_unformattable_for<T, char_type> _;
- return ctx.begin();
- }
-#else
- return formatter<mapped_type, char_type>().parse(ctx);
-#endif
-}
-
-// Checks char specs and returns true iff the presentation type is char-like.
-template <typename Char>
-FMT_CONSTEXPR auto check_char_specs(const format_specs<Char>& specs) -> bool {
- if (specs.type != presentation_type::none &&
- specs.type != presentation_type::chr &&
- specs.type != presentation_type::debug) {
- return false;
- }
- if (specs.align == align::numeric || specs.sign != sign::none || specs.alt)
- throw_format_error("invalid format specifier for char");
- return true;
-}
-
-#if FMT_USE_NONTYPE_TEMPLATE_ARGS
-template <int N, typename T, typename... Args, typename Char>
-constexpr auto get_arg_index_by_name(basic_string_view<Char> name) -> int {
- if constexpr (is_statically_named_arg<T>()) {
- if (name == T::name) return N;
- }
- if constexpr (sizeof...(Args) > 0)
- return get_arg_index_by_name<N + 1, Args...>(name);
- (void)name; // Workaround an MSVC bug about "unused" parameter.
- return -1;
-}
-#endif
-
-template <typename... Args, typename Char>
-FMT_CONSTEXPR auto get_arg_index_by_name(basic_string_view<Char> name) -> int {
-#if FMT_USE_NONTYPE_TEMPLATE_ARGS
- if constexpr (sizeof...(Args) > 0)
- return get_arg_index_by_name<0, Args...>(name);
-#endif
- (void)name;
- return -1;
-}
-
-template <typename Char, typename... Args> class format_string_checker {
- private:
- using parse_context_type = compile_parse_context<Char>;
- static constexpr int num_args = sizeof...(Args);
-
- // Format specifier parsing function.
- // In the future basic_format_parse_context will replace compile_parse_context
- // here and will use is_constant_evaluated and downcasting to access the data
- // needed for compile-time checks: https://godbolt.org/z/GvWzcTjh1.
- using parse_func = const Char* (*)(parse_context_type&);
-
- type types_[num_args > 0 ? static_cast<size_t>(num_args) : 1];
- parse_context_type context_;
- parse_func parse_funcs_[num_args > 0 ? static_cast<size_t>(num_args) : 1];
-
- public:
- explicit FMT_CONSTEXPR format_string_checker(basic_string_view<Char> fmt)
- : types_{mapped_type_constant<Args, buffer_context<Char>>::value...},
- context_(fmt, num_args, types_),
- parse_funcs_{&parse_format_specs<Args, parse_context_type>...} {}
-
- FMT_CONSTEXPR void on_text(const Char*, const Char*) {}
-
- FMT_CONSTEXPR auto on_arg_id() -> int { return context_.next_arg_id(); }
- FMT_CONSTEXPR auto on_arg_id(int id) -> int {
- return context_.check_arg_id(id), id;
- }
- FMT_CONSTEXPR auto on_arg_id(basic_string_view<Char> id) -> int {
-#if FMT_USE_NONTYPE_TEMPLATE_ARGS
- auto index = get_arg_index_by_name<Args...>(id);
- if (index < 0) on_error("named argument is not found");
- return index;
-#else
- (void)id;
- on_error("compile-time checks for named arguments require C++20 support");
- return 0;
-#endif
- }
-
- FMT_CONSTEXPR void on_replacement_field(int id, const Char* begin) {
- on_format_specs(id, begin, begin); // Call parse() on empty specs.
- }
-
- FMT_CONSTEXPR auto on_format_specs(int id, const Char* begin, const Char*)
- -> const Char* {
- context_.advance_to(begin);
- // id >= 0 check is a workaround for gcc 10 bug (#2065).
- return id >= 0 && id < num_args ? parse_funcs_[id](context_) : begin;
- }
-
- FMT_CONSTEXPR void on_error(const char* message) {
- throw_format_error(message);
- }
-};
-
-// Reports a compile-time error if S is not a valid format string.
-template <typename..., typename S, FMT_ENABLE_IF(!is_compile_string<S>::value)>
-FMT_INLINE void check_format_string(const S&) {
-#ifdef FMT_ENFORCE_COMPILE_STRING
- static_assert(is_compile_string<S>::value,
- "FMT_ENFORCE_COMPILE_STRING requires all format strings to use "
- "FMT_STRING.");
-#endif
-}
-template <typename... Args, typename S,
- FMT_ENABLE_IF(is_compile_string<S>::value)>
-void check_format_string(S format_str) {
- using char_t = typename S::char_type;
- FMT_CONSTEXPR auto s = basic_string_view<char_t>(format_str);
- using checker = format_string_checker<char_t, remove_cvref_t<Args>...>;
- FMT_CONSTEXPR bool error = (parse_format_string<true>(s, checker(s)), true);
- ignore_unused(error);
-}
-
-template <typename Char = char> struct vformat_args {
- using type = basic_format_args<
- basic_format_context<std::back_insert_iterator<buffer<Char>>, Char>>;
-};
-template <> struct vformat_args<char> {
- using type = format_args;
-};
-
-// Use vformat_args and avoid type_identity to keep symbols short.
-template <typename Char>
-void vformat_to(buffer<Char>& buf, basic_string_view<Char> fmt,
- typename vformat_args<Char>::type args, locale_ref loc = {});
-
-FMT_API void vprint_mojibake(std::FILE*, string_view, format_args);
-#ifndef _WIN32
-inline void vprint_mojibake(std::FILE*, string_view, format_args) {}
-#endif
-} // namespace detail
-
-FMT_BEGIN_EXPORT
-
-// A formatter specialization for natively supported types.
-template <typename T, typename Char>
-struct formatter<T, Char,
- enable_if_t<detail::type_constant<T, Char>::value !=
- detail::type::custom_type>> {
- private:
- detail::dynamic_format_specs<Char> specs_;
-
- public:
- template <typename ParseContext>
- FMT_CONSTEXPR auto parse(ParseContext& ctx) -> const Char* {
- auto type = detail::type_constant<T, Char>::value;
- auto end =
- detail::parse_format_specs(ctx.begin(), ctx.end(), specs_, ctx, type);
- if (type == detail::type::char_type) detail::check_char_specs(specs_);
- return end;
- }
-
- template <detail::type U = detail::type_constant<T, Char>::value,
- FMT_ENABLE_IF(U == detail::type::string_type ||
- U == detail::type::cstring_type ||
- U == detail::type::char_type)>
- FMT_CONSTEXPR void set_debug_format(bool set = true) {
- specs_.type = set ? presentation_type::debug : presentation_type::none;
- }
-
- template <typename FormatContext>
- FMT_CONSTEXPR auto format(const T& val, FormatContext& ctx) const
- -> decltype(ctx.out());
-};
-
-template <typename Char = char> struct runtime_format_string {
- basic_string_view<Char> str;
-};
-
-/** A compile-time format string. */
-template <typename Char, typename... Args> class basic_format_string {
- private:
- basic_string_view<Char> str_;
-
- public:
- template <typename S,
- FMT_ENABLE_IF(
- std::is_convertible<const S&, basic_string_view<Char>>::value)>
- FMT_CONSTEVAL FMT_INLINE basic_format_string(const S& s) : str_(s) {
- static_assert(
- detail::count<
- (std::is_base_of<detail::view, remove_reference_t<Args>>::value &&
- std::is_reference<Args>::value)...>() == 0,
- "passing views as lvalues is disallowed");
-#ifdef FMT_HAS_CONSTEVAL
- if constexpr (detail::count_named_args<Args...>() ==
- detail::count_statically_named_args<Args...>()) {
- using checker =
- detail::format_string_checker<Char, remove_cvref_t<Args>...>;
- detail::parse_format_string<true>(str_, checker(s));
- }
-#else
- detail::check_format_string<Args...>(s);
-#endif
- }
- basic_format_string(runtime_format_string<Char> fmt) : str_(fmt.str) {}
-
- FMT_INLINE operator basic_string_view<Char>() const { return str_; }
- FMT_INLINE auto get() const -> basic_string_view<Char> { return str_; }
-};
-
-#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
-// Workaround broken conversion on older gcc.
-template <typename...> using format_string = string_view;
-inline auto runtime(string_view s) -> string_view { return s; }
-#else
-template <typename... Args>
-using format_string = basic_format_string<char, type_identity_t<Args>...>;
-/**
- \rst
- Creates a runtime format string.
-
- **Example**::
-
- // Check format string at runtime instead of compile-time.
- fmt::print(fmt::runtime("{:d}"), "I am not a number");
- \endrst
- */
-inline auto runtime(string_view s) -> runtime_format_string<> { return {{s}}; }
-#endif
-
-FMT_API auto vformat(string_view fmt, format_args args) -> std::string;
-
-/**
- \rst
- Formats ``args`` according to specifications in ``fmt`` and returns the result
- as a string.
-
- **Example**::
-
- #include <fmt/core.h>
- std::string message = fmt::format("The answer is {}.", 42);
- \endrst
-*/
-template <typename... T>
-FMT_NODISCARD FMT_INLINE auto format(format_string<T...> fmt, T&&... args)
- -> std::string {
- return vformat(fmt, fmt::make_format_args(args...));
-}
-
-/** Formats a string and writes the output to ``out``. */
-template <typename OutputIt,
- FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
-auto vformat_to(OutputIt out, string_view fmt, format_args args) -> OutputIt {
- auto&& buf = detail::get_buffer<char>(out);
- detail::vformat_to(buf, fmt, args, {});
- return detail::get_iterator(buf, out);
-}
-
-/**
- \rst
- Formats ``args`` according to specifications in ``fmt``, writes the result to
- the output iterator ``out`` and returns the iterator past the end of the output
- range. `format_to` does not append a terminating null character.
-
- **Example**::
-
- auto out = std::vector<char>();
- fmt::format_to(std::back_inserter(out), "{}", 42);
- \endrst
- */
-template <typename OutputIt, typename... T,
- FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
-FMT_INLINE auto format_to(OutputIt out, format_string<T...> fmt, T&&... args)
- -> OutputIt {
- return vformat_to(out, fmt, fmt::make_format_args(args...));
-}
-
-template <typename OutputIt> struct format_to_n_result {
- /** Iterator past the end of the output range. */
- OutputIt out;
- /** Total (not truncated) output size. */
- size_t size;
-};
-
-template <typename OutputIt, typename... T,
- FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
-auto vformat_to_n(OutputIt out, size_t n, string_view fmt, format_args args)
- -> format_to_n_result<OutputIt> {
- using traits = detail::fixed_buffer_traits;
- auto buf = detail::iterator_buffer<OutputIt, char, traits>(out, n);
- detail::vformat_to(buf, fmt, args, {});
- return {buf.out(), buf.count()};
-}
-
-/**
- \rst
- Formats ``args`` according to specifications in ``fmt``, writes up to ``n``
- characters of the result to the output iterator ``out`` and returns the total
- (not truncated) output size and the iterator past the end of the output range.
- `format_to_n` does not append a terminating null character.
- \endrst
- */
-template <typename OutputIt, typename... T,
- FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value)>
-FMT_INLINE auto format_to_n(OutputIt out, size_t n, format_string<T...> fmt,
- T&&... args) -> format_to_n_result<OutputIt> {
- return vformat_to_n(out, n, fmt, fmt::make_format_args(args...));
-}
-
-/** Returns the number of chars in the output of ``format(fmt, args...)``. */
-template <typename... T>
-FMT_NODISCARD FMT_INLINE auto formatted_size(format_string<T...> fmt,
- T&&... args) -> size_t {
- auto buf = detail::counting_buffer<>();
- detail::vformat_to<char>(buf, fmt, fmt::make_format_args(args...), {});
- return buf.count();
-}
-
-FMT_API void vprint(string_view fmt, format_args args);
-FMT_API void vprint(std::FILE* f, string_view fmt, format_args args);
-
-/**
- \rst
- Formats ``args`` according to specifications in ``fmt`` and writes the output
- to ``stdout``.
-
- **Example**::
-
- fmt::print("Elapsed time: {0:.2f} seconds", 1.23);
- \endrst
- */
-template <typename... T>
-FMT_INLINE void print(format_string<T...> fmt, T&&... args) {
- const auto& vargs = fmt::make_format_args(args...);
- return detail::is_utf8() ? vprint(fmt, vargs)
- : detail::vprint_mojibake(stdout, fmt, vargs);
-}
-
-/**
- \rst
- Formats ``args`` according to specifications in ``fmt`` and writes the
- output to the file ``f``.
-
- **Example**::
-
- fmt::print(stderr, "Don't {}!", "panic");
- \endrst
- */
-template <typename... T>
-FMT_INLINE void print(std::FILE* f, format_string<T...> fmt, T&&... args) {
- const auto& vargs = fmt::make_format_args(args...);
- return detail::is_utf8() ? vprint(f, fmt, vargs)
- : detail::vprint_mojibake(f, fmt, vargs);
-}
-
-/**
- Formats ``args`` according to specifications in ``fmt`` and writes the
- output to the file ``f`` followed by a newline.
- */
-template <typename... T>
-FMT_INLINE void println(std::FILE* f, format_string<T...> fmt, T&&... args) {
- return fmt::print(f, "{}\n", fmt::format(fmt, std::forward<T>(args)...));
-}
-
-/**
- Formats ``args`` according to specifications in ``fmt`` and writes the output
- to ``stdout`` followed by a newline.
- */
-template <typename... T>
-FMT_INLINE void println(format_string<T...> fmt, T&&... args) {
- return fmt::println(stdout, fmt, std::forward<T>(args)...);
-}
-
-FMT_END_EXPORT
-FMT_GCC_PRAGMA("GCC pop_options")
-FMT_END_NAMESPACE
-
-#ifdef FMT_HEADER_ONLY
-# include "format.h"
-#endif
-#endif // FMT_CORE_H_
+++ /dev/null
-// Formatting library for C++ - implementation
-//
-// Copyright (c) 2012 - 2016, Victor Zverovich
-// All rights reserved.
-//
-// For the license information refer to format.h.
-
-#ifndef FMT_FORMAT_INL_H_
-#define FMT_FORMAT_INL_H_
-
-#include <algorithm>
-#include <cerrno> // errno
-#include <climits>
-#include <cmath>
-#include <exception>
-
-#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
-# include <locale>
-#endif
-
-#if defined(_WIN32) && !defined(FMT_WINDOWS_NO_WCHAR)
-# include <io.h> // _isatty
-#endif
-
-#include "format.h"
-
-FMT_BEGIN_NAMESPACE
-namespace detail {
-
-FMT_FUNC void assert_fail(const char* file, int line, const char* message) {
- // Use unchecked std::fprintf to avoid triggering another assertion when
- // writing to stderr fails
- std::fprintf(stderr, "%s:%d: assertion failed: %s", file, line, message);
- // Chosen instead of std::abort to satisfy Clang in CUDA mode during device
- // code pass.
- std::terminate();
-}
-
-FMT_FUNC void throw_format_error(const char* message) {
- FMT_THROW(format_error(message));
-}
-
-FMT_FUNC void format_error_code(detail::buffer<char>& out, int error_code,
- string_view message) noexcept {
- // Report error code making sure that the output fits into
- // inline_buffer_size to avoid dynamic memory allocation and potential
- // bad_alloc.
- out.try_resize(0);
- static const char SEP[] = ": ";
- static const char ERROR_STR[] = "error ";
- // Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
- size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
- auto abs_value = static_cast<uint32_or_64_or_128_t<int>>(error_code);
- if (detail::is_negative(error_code)) {
- abs_value = 0 - abs_value;
- ++error_code_size;
- }
- error_code_size += detail::to_unsigned(detail::count_digits(abs_value));
- auto it = buffer_appender<char>(out);
- if (message.size() <= inline_buffer_size - error_code_size)
- fmt::format_to(it, FMT_STRING("{}{}"), message, SEP);
- fmt::format_to(it, FMT_STRING("{}{}"), ERROR_STR, error_code);
- FMT_ASSERT(out.size() <= inline_buffer_size, "");
-}
-
-FMT_FUNC void report_error(format_func func, int error_code,
- const char* message) noexcept {
- memory_buffer full_message;
- func(full_message, error_code, message);
- // Don't use fwrite_fully because the latter may throw.
- if (std::fwrite(full_message.data(), full_message.size(), 1, stderr) > 0)
- std::fputc('\n', stderr);
-}
-
-// A wrapper around fwrite that throws on error.
-inline void fwrite_fully(const void* ptr, size_t count, FILE* stream) {
- size_t written = std::fwrite(ptr, 1, count, stream);
- if (written < count)
- FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
-}
-
-#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
-template <typename Locale>
-locale_ref::locale_ref(const Locale& loc) : locale_(&loc) {
- static_assert(std::is_same<Locale, std::locale>::value, "");
-}
-
-template <typename Locale> auto locale_ref::get() const -> Locale {
- static_assert(std::is_same<Locale, std::locale>::value, "");
- return locale_ ? *static_cast<const std::locale*>(locale_) : std::locale();
-}
-
-template <typename Char>
-FMT_FUNC auto thousands_sep_impl(locale_ref loc) -> thousands_sep_result<Char> {
- auto& facet = std::use_facet<std::numpunct<Char>>(loc.get<std::locale>());
- auto grouping = facet.grouping();
- auto thousands_sep = grouping.empty() ? Char() : facet.thousands_sep();
- return {std::move(grouping), thousands_sep};
-}
-template <typename Char>
-FMT_FUNC auto decimal_point_impl(locale_ref loc) -> Char {
- return std::use_facet<std::numpunct<Char>>(loc.get<std::locale>())
- .decimal_point();
-}
-#else
-template <typename Char>
-FMT_FUNC auto thousands_sep_impl(locale_ref) -> thousands_sep_result<Char> {
- return {"\03", FMT_STATIC_THOUSANDS_SEPARATOR};
-}
-template <typename Char> FMT_FUNC Char decimal_point_impl(locale_ref) {
- return '.';
-}
-#endif
-
-FMT_FUNC auto write_loc(appender out, loc_value value,
- const format_specs<>& specs, locale_ref loc) -> bool {
-#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
- auto locale = loc.get<std::locale>();
- // We cannot use the num_put<char> facet because it may produce output in
- // a wrong encoding.
- using facet = format_facet<std::locale>;
- if (std::has_facet<facet>(locale))
- return std::use_facet<facet>(locale).put(out, value, specs);
- return facet(locale).put(out, value, specs);
-#endif
- return false;
-}
-} // namespace detail
-
-template <typename Locale> typename Locale::id format_facet<Locale>::id;
-
-#ifndef FMT_STATIC_THOUSANDS_SEPARATOR
-template <typename Locale> format_facet<Locale>::format_facet(Locale& loc) {
- auto& numpunct = std::use_facet<std::numpunct<char>>(loc);
- grouping_ = numpunct.grouping();
- if (!grouping_.empty()) separator_ = std::string(1, numpunct.thousands_sep());
-}
-
-template <>
-FMT_API FMT_FUNC auto format_facet<std::locale>::do_put(
- appender out, loc_value val, const format_specs<>& specs) const -> bool {
- return val.visit(
- detail::loc_writer<>{out, specs, separator_, grouping_, decimal_point_});
-}
-#endif
-
-FMT_FUNC auto vsystem_error(int error_code, string_view fmt, format_args args)
- -> std::system_error {
- auto ec = std::error_code(error_code, std::generic_category());
- return std::system_error(ec, vformat(fmt, args));
-}
-
-namespace detail {
-
-template <typename F>
-inline auto operator==(basic_fp<F> x, basic_fp<F> y) -> bool {
- return x.f == y.f && x.e == y.e;
-}
-
-// Compilers should be able to optimize this into the ror instruction.
-FMT_CONSTEXPR inline auto rotr(uint32_t n, uint32_t r) noexcept -> uint32_t {
- r &= 31;
- return (n >> r) | (n << (32 - r));
-}
-FMT_CONSTEXPR inline auto rotr(uint64_t n, uint32_t r) noexcept -> uint64_t {
- r &= 63;
- return (n >> r) | (n << (64 - r));
-}
-
-// Implementation of Dragonbox algorithm: https://github.com/jk-jeon/dragonbox.
-namespace dragonbox {
-// Computes upper 64 bits of multiplication of a 32-bit unsigned integer and a
-// 64-bit unsigned integer.
-inline auto umul96_upper64(uint32_t x, uint64_t y) noexcept -> uint64_t {
- return umul128_upper64(static_cast<uint64_t>(x) << 32, y);
-}
-
-// Computes lower 128 bits of multiplication of a 64-bit unsigned integer and a
-// 128-bit unsigned integer.
-inline auto umul192_lower128(uint64_t x, uint128_fallback y) noexcept
- -> uint128_fallback {
- uint64_t high = x * y.high();
- uint128_fallback high_low = umul128(x, y.low());
- return {high + high_low.high(), high_low.low()};
-}
-
-// Computes lower 64 bits of multiplication of a 32-bit unsigned integer and a
-// 64-bit unsigned integer.
-inline auto umul96_lower64(uint32_t x, uint64_t y) noexcept -> uint64_t {
- return x * y;
-}
-
-// Various fast log computations.
-inline auto floor_log10_pow2_minus_log10_4_over_3(int e) noexcept -> int {
- FMT_ASSERT(e <= 2936 && e >= -2985, "too large exponent");
- return (e * 631305 - 261663) >> 21;
-}
-
-FMT_INLINE_VARIABLE constexpr struct {
- uint32_t divisor;
- int shift_amount;
-} div_small_pow10_infos[] = {{10, 16}, {100, 16}};
-
-// Replaces n by floor(n / pow(10, N)) returning true if and only if n is
-// divisible by pow(10, N).
-// Precondition: n <= pow(10, N + 1).
-template <int N>
-auto check_divisibility_and_divide_by_pow10(uint32_t& n) noexcept -> bool {
- // The numbers below are chosen such that:
- // 1. floor(n/d) = floor(nm / 2^k) where d=10 or d=100,
- // 2. nm mod 2^k < m if and only if n is divisible by d,
- // where m is magic_number, k is shift_amount
- // and d is divisor.
- //
- // Item 1 is a common technique of replacing division by a constant with
- // multiplication, see e.g. "Division by Invariant Integers Using
- // Multiplication" by Granlund and Montgomery (1994). magic_number (m) is set
- // to ceil(2^k/d) for large enough k.
- // The idea for item 2 originates from Schubfach.
- constexpr auto info = div_small_pow10_infos[N - 1];
- FMT_ASSERT(n <= info.divisor * 10, "n is too large");
- constexpr uint32_t magic_number =
- (1u << info.shift_amount) / info.divisor + 1;
- n *= magic_number;
- const uint32_t comparison_mask = (1u << info.shift_amount) - 1;
- bool result = (n & comparison_mask) < magic_number;
- n >>= info.shift_amount;
- return result;
-}
-
-// Computes floor(n / pow(10, N)) for small n and N.
-// Precondition: n <= pow(10, N + 1).
-template <int N> auto small_division_by_pow10(uint32_t n) noexcept -> uint32_t {
- constexpr auto info = div_small_pow10_infos[N - 1];
- FMT_ASSERT(n <= info.divisor * 10, "n is too large");
- constexpr uint32_t magic_number =
- (1u << info.shift_amount) / info.divisor + 1;
- return (n * magic_number) >> info.shift_amount;
-}
-
-// Computes floor(n / 10^(kappa + 1)) (float)
-inline auto divide_by_10_to_kappa_plus_1(uint32_t n) noexcept -> uint32_t {
- // 1374389535 = ceil(2^37/100)
- return static_cast<uint32_t>((static_cast<uint64_t>(n) * 1374389535) >> 37);
-}
-// Computes floor(n / 10^(kappa + 1)) (double)
-inline auto divide_by_10_to_kappa_plus_1(uint64_t n) noexcept -> uint64_t {
- // 2361183241434822607 = ceil(2^(64+7)/1000)
- return umul128_upper64(n, 2361183241434822607ull) >> 7;
-}
-
-// Various subroutines using pow10 cache
-template <typename T> struct cache_accessor;
-
-template <> struct cache_accessor<float> {
- using carrier_uint = float_info<float>::carrier_uint;
- using cache_entry_type = uint64_t;
-
- static auto get_cached_power(int k) noexcept -> uint64_t {
- FMT_ASSERT(k >= float_info<float>::min_k && k <= float_info<float>::max_k,
- "k is out of range");
- static constexpr const uint64_t pow10_significands[] = {
- 0x81ceb32c4b43fcf5, 0xa2425ff75e14fc32, 0xcad2f7f5359a3b3f,
- 0xfd87b5f28300ca0e, 0x9e74d1b791e07e49, 0xc612062576589ddb,
- 0xf79687aed3eec552, 0x9abe14cd44753b53, 0xc16d9a0095928a28,
- 0xf1c90080baf72cb2, 0x971da05074da7bef, 0xbce5086492111aeb,
- 0xec1e4a7db69561a6, 0x9392ee8e921d5d08, 0xb877aa3236a4b44a,
- 0xe69594bec44de15c, 0x901d7cf73ab0acda, 0xb424dc35095cd810,
- 0xe12e13424bb40e14, 0x8cbccc096f5088cc, 0xafebff0bcb24aaff,
- 0xdbe6fecebdedd5bf, 0x89705f4136b4a598, 0xabcc77118461cefd,
- 0xd6bf94d5e57a42bd, 0x8637bd05af6c69b6, 0xa7c5ac471b478424,
- 0xd1b71758e219652c, 0x83126e978d4fdf3c, 0xa3d70a3d70a3d70b,
- 0xcccccccccccccccd, 0x8000000000000000, 0xa000000000000000,
- 0xc800000000000000, 0xfa00000000000000, 0x9c40000000000000,
- 0xc350000000000000, 0xf424000000000000, 0x9896800000000000,
- 0xbebc200000000000, 0xee6b280000000000, 0x9502f90000000000,
- 0xba43b74000000000, 0xe8d4a51000000000, 0x9184e72a00000000,
- 0xb5e620f480000000, 0xe35fa931a0000000, 0x8e1bc9bf04000000,
- 0xb1a2bc2ec5000000, 0xde0b6b3a76400000, 0x8ac7230489e80000,
- 0xad78ebc5ac620000, 0xd8d726b7177a8000, 0x878678326eac9000,
- 0xa968163f0a57b400, 0xd3c21bcecceda100, 0x84595161401484a0,
- 0xa56fa5b99019a5c8, 0xcecb8f27f4200f3a, 0x813f3978f8940985,
- 0xa18f07d736b90be6, 0xc9f2c9cd04674edf, 0xfc6f7c4045812297,
- 0x9dc5ada82b70b59e, 0xc5371912364ce306, 0xf684df56c3e01bc7,
- 0x9a130b963a6c115d, 0xc097ce7bc90715b4, 0xf0bdc21abb48db21,
- 0x96769950b50d88f5, 0xbc143fa4e250eb32, 0xeb194f8e1ae525fe,
- 0x92efd1b8d0cf37bf, 0xb7abc627050305ae, 0xe596b7b0c643c71a,
- 0x8f7e32ce7bea5c70, 0xb35dbf821ae4f38c, 0xe0352f62a19e306f};
- return pow10_significands[k - float_info<float>::min_k];
- }
-
- struct compute_mul_result {
- carrier_uint result;
- bool is_integer;
- };
- struct compute_mul_parity_result {
- bool parity;
- bool is_integer;
- };
-
- static auto compute_mul(carrier_uint u,
- const cache_entry_type& cache) noexcept
- -> compute_mul_result {
- auto r = umul96_upper64(u, cache);
- return {static_cast<carrier_uint>(r >> 32),
- static_cast<carrier_uint>(r) == 0};
- }
-
- static auto compute_delta(const cache_entry_type& cache, int beta) noexcept
- -> uint32_t {
- return static_cast<uint32_t>(cache >> (64 - 1 - beta));
- }
-
- static auto compute_mul_parity(carrier_uint two_f,
- const cache_entry_type& cache,
- int beta) noexcept
- -> compute_mul_parity_result {
- FMT_ASSERT(beta >= 1, "");
- FMT_ASSERT(beta < 64, "");
-
- auto r = umul96_lower64(two_f, cache);
- return {((r >> (64 - beta)) & 1) != 0,
- static_cast<uint32_t>(r >> (32 - beta)) == 0};
- }
-
- static auto compute_left_endpoint_for_shorter_interval_case(
- const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
- return static_cast<carrier_uint>(
- (cache - (cache >> (num_significand_bits<float>() + 2))) >>
- (64 - num_significand_bits<float>() - 1 - beta));
- }
-
- static auto compute_right_endpoint_for_shorter_interval_case(
- const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
- return static_cast<carrier_uint>(
- (cache + (cache >> (num_significand_bits<float>() + 1))) >>
- (64 - num_significand_bits<float>() - 1 - beta));
- }
-
- static auto compute_round_up_for_shorter_interval_case(
- const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
- return (static_cast<carrier_uint>(
- cache >> (64 - num_significand_bits<float>() - 2 - beta)) +
- 1) /
- 2;
- }
-};
-
-template <> struct cache_accessor<double> {
- using carrier_uint = float_info<double>::carrier_uint;
- using cache_entry_type = uint128_fallback;
-
- static auto get_cached_power(int k) noexcept -> uint128_fallback {
- FMT_ASSERT(k >= float_info<double>::min_k && k <= float_info<double>::max_k,
- "k is out of range");
-
- static constexpr const uint128_fallback pow10_significands[] = {
-#if FMT_USE_FULL_CACHE_DRAGONBOX
- {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b},
- {0x9faacf3df73609b1, 0x77b191618c54e9ad},
- {0xc795830d75038c1d, 0xd59df5b9ef6a2418},
- {0xf97ae3d0d2446f25, 0x4b0573286b44ad1e},
- {0x9becce62836ac577, 0x4ee367f9430aec33},
- {0xc2e801fb244576d5, 0x229c41f793cda740},
- {0xf3a20279ed56d48a, 0x6b43527578c11110},
- {0x9845418c345644d6, 0x830a13896b78aaaa},
- {0xbe5691ef416bd60c, 0x23cc986bc656d554},
- {0xedec366b11c6cb8f, 0x2cbfbe86b7ec8aa9},
- {0x94b3a202eb1c3f39, 0x7bf7d71432f3d6aa},
- {0xb9e08a83a5e34f07, 0xdaf5ccd93fb0cc54},
- {0xe858ad248f5c22c9, 0xd1b3400f8f9cff69},
- {0x91376c36d99995be, 0x23100809b9c21fa2},
- {0xb58547448ffffb2d, 0xabd40a0c2832a78b},
- {0xe2e69915b3fff9f9, 0x16c90c8f323f516d},
- {0x8dd01fad907ffc3b, 0xae3da7d97f6792e4},
- {0xb1442798f49ffb4a, 0x99cd11cfdf41779d},
- {0xdd95317f31c7fa1d, 0x40405643d711d584},
- {0x8a7d3eef7f1cfc52, 0x482835ea666b2573},
- {0xad1c8eab5ee43b66, 0xda3243650005eed0},
- {0xd863b256369d4a40, 0x90bed43e40076a83},
- {0x873e4f75e2224e68, 0x5a7744a6e804a292},
- {0xa90de3535aaae202, 0x711515d0a205cb37},
- {0xd3515c2831559a83, 0x0d5a5b44ca873e04},
- {0x8412d9991ed58091, 0xe858790afe9486c3},
- {0xa5178fff668ae0b6, 0x626e974dbe39a873},
- {0xce5d73ff402d98e3, 0xfb0a3d212dc81290},
- {0x80fa687f881c7f8e, 0x7ce66634bc9d0b9a},
- {0xa139029f6a239f72, 0x1c1fffc1ebc44e81},
- {0xc987434744ac874e, 0xa327ffb266b56221},
- {0xfbe9141915d7a922, 0x4bf1ff9f0062baa9},
- {0x9d71ac8fada6c9b5, 0x6f773fc3603db4aa},
- {0xc4ce17b399107c22, 0xcb550fb4384d21d4},
- {0xf6019da07f549b2b, 0x7e2a53a146606a49},
- {0x99c102844f94e0fb, 0x2eda7444cbfc426e},
- {0xc0314325637a1939, 0xfa911155fefb5309},
- {0xf03d93eebc589f88, 0x793555ab7eba27cb},
- {0x96267c7535b763b5, 0x4bc1558b2f3458df},
- {0xbbb01b9283253ca2, 0x9eb1aaedfb016f17},
- {0xea9c227723ee8bcb, 0x465e15a979c1cadd},
- {0x92a1958a7675175f, 0x0bfacd89ec191eca},
- {0xb749faed14125d36, 0xcef980ec671f667c},
- {0xe51c79a85916f484, 0x82b7e12780e7401b},
- {0x8f31cc0937ae58d2, 0xd1b2ecb8b0908811},
- {0xb2fe3f0b8599ef07, 0x861fa7e6dcb4aa16},
- {0xdfbdcece67006ac9, 0x67a791e093e1d49b},
- {0x8bd6a141006042bd, 0xe0c8bb2c5c6d24e1},
- {0xaecc49914078536d, 0x58fae9f773886e19},
- {0xda7f5bf590966848, 0xaf39a475506a899f},
- {0x888f99797a5e012d, 0x6d8406c952429604},
- {0xaab37fd7d8f58178, 0xc8e5087ba6d33b84},
- {0xd5605fcdcf32e1d6, 0xfb1e4a9a90880a65},
- {0x855c3be0a17fcd26, 0x5cf2eea09a550680},
- {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f},
- {0xd0601d8efc57b08b, 0xf13b94daf124da27},
- {0x823c12795db6ce57, 0x76c53d08d6b70859},
- {0xa2cb1717b52481ed, 0x54768c4b0c64ca6f},
- {0xcb7ddcdda26da268, 0xa9942f5dcf7dfd0a},
- {0xfe5d54150b090b02, 0xd3f93b35435d7c4d},
- {0x9efa548d26e5a6e1, 0xc47bc5014a1a6db0},
- {0xc6b8e9b0709f109a, 0x359ab6419ca1091c},
- {0xf867241c8cc6d4c0, 0xc30163d203c94b63},
- {0x9b407691d7fc44f8, 0x79e0de63425dcf1e},
- {0xc21094364dfb5636, 0x985915fc12f542e5},
- {0xf294b943e17a2bc4, 0x3e6f5b7b17b2939e},
- {0x979cf3ca6cec5b5a, 0xa705992ceecf9c43},
- {0xbd8430bd08277231, 0x50c6ff782a838354},
- {0xece53cec4a314ebd, 0xa4f8bf5635246429},
- {0x940f4613ae5ed136, 0x871b7795e136be9a},
- {0xb913179899f68584, 0x28e2557b59846e40},
- {0xe757dd7ec07426e5, 0x331aeada2fe589d0},
- {0x9096ea6f3848984f, 0x3ff0d2c85def7622},
- {0xb4bca50b065abe63, 0x0fed077a756b53aa},
- {0xe1ebce4dc7f16dfb, 0xd3e8495912c62895},
- {0x8d3360f09cf6e4bd, 0x64712dd7abbbd95d},
- {0xb080392cc4349dec, 0xbd8d794d96aacfb4},
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- {0x86f0ac99b4e8dafd, 0x69a028bb3ded71a4},
- {0xa8acd7c0222311bc, 0xc40832ea0d68ce0d},
- {0xd2d80db02aabd62b, 0xf50a3fa490c30191},
- {0x83c7088e1aab65db, 0x792667c6da79e0fb},
- {0xa4b8cab1a1563f52, 0x577001b891185939},
- {0xcde6fd5e09abcf26, 0xed4c0226b55e6f87},
- {0x80b05e5ac60b6178, 0x544f8158315b05b5},
- {0xa0dc75f1778e39d6, 0x696361ae3db1c722},
- {0xc913936dd571c84c, 0x03bc3a19cd1e38ea},
- {0xfb5878494ace3a5f, 0x04ab48a04065c724},
- {0x9d174b2dcec0e47b, 0x62eb0d64283f9c77},
- {0xc45d1df942711d9a, 0x3ba5d0bd324f8395},
- {0xf5746577930d6500, 0xca8f44ec7ee3647a},
- {0x9968bf6abbe85f20, 0x7e998b13cf4e1ecc},
- {0xbfc2ef456ae276e8, 0x9e3fedd8c321a67f},
- {0xefb3ab16c59b14a2, 0xc5cfe94ef3ea101f},
- {0x95d04aee3b80ece5, 0xbba1f1d158724a13},
- {0xbb445da9ca61281f, 0x2a8a6e45ae8edc98},
- {0xea1575143cf97226, 0xf52d09d71a3293be},
- {0x924d692ca61be758, 0x593c2626705f9c57},
- {0xb6e0c377cfa2e12e, 0x6f8b2fb00c77836d},
- {0xe498f455c38b997a, 0x0b6dfb9c0f956448},
- {0x8edf98b59a373fec, 0x4724bd4189bd5ead},
- {0xb2977ee300c50fe7, 0x58edec91ec2cb658},
- {0xdf3d5e9bc0f653e1, 0x2f2967b66737e3ee},
- {0x8b865b215899f46c, 0xbd79e0d20082ee75},
- {0xae67f1e9aec07187, 0xecd8590680a3aa12},
- {0xda01ee641a708de9, 0xe80e6f4820cc9496},
- {0x884134fe908658b2, 0x3109058d147fdcde},
- {0xaa51823e34a7eede, 0xbd4b46f0599fd416},
- {0xd4e5e2cdc1d1ea96, 0x6c9e18ac7007c91b},
- {0x850fadc09923329e, 0x03e2cf6bc604ddb1},
- {0xa6539930bf6bff45, 0x84db8346b786151d},
- {0xcfe87f7cef46ff16, 0xe612641865679a64},
- {0x81f14fae158c5f6e, 0x4fcb7e8f3f60c07f},
- {0xa26da3999aef7749, 0xe3be5e330f38f09e},
- {0xcb090c8001ab551c, 0x5cadf5bfd3072cc6},
- {0xfdcb4fa002162a63, 0x73d9732fc7c8f7f7},
- {0x9e9f11c4014dda7e, 0x2867e7fddcdd9afb},
- {0xc646d63501a1511d, 0xb281e1fd541501b9},
- {0xf7d88bc24209a565, 0x1f225a7ca91a4227},
- {0x9ae757596946075f, 0x3375788de9b06959},
- {0xc1a12d2fc3978937, 0x0052d6b1641c83af},
- {0xf209787bb47d6b84, 0xc0678c5dbd23a49b},
- {0x9745eb4d50ce6332, 0xf840b7ba963646e1},
- {0xbd176620a501fbff, 0xb650e5a93bc3d899},
- {0xec5d3fa8ce427aff, 0xa3e51f138ab4cebf},
- {0x93ba47c980e98cdf, 0xc66f336c36b10138},
- {0xb8a8d9bbe123f017, 0xb80b0047445d4185},
- {0xe6d3102ad96cec1d, 0xa60dc059157491e6},
- {0x9043ea1ac7e41392, 0x87c89837ad68db30},
- {0xb454e4a179dd1877, 0x29babe4598c311fc},
- {0xe16a1dc9d8545e94, 0xf4296dd6fef3d67b},
- {0x8ce2529e2734bb1d, 0x1899e4a65f58660d},
- {0xb01ae745b101e9e4, 0x5ec05dcff72e7f90},
- {0xdc21a1171d42645d, 0x76707543f4fa1f74},
- {0x899504ae72497eba, 0x6a06494a791c53a9},
- {0xabfa45da0edbde69, 0x0487db9d17636893},
- {0xd6f8d7509292d603, 0x45a9d2845d3c42b7},
- {0x865b86925b9bc5c2, 0x0b8a2392ba45a9b3},
- {0xa7f26836f282b732, 0x8e6cac7768d7141f},
- {0xd1ef0244af2364ff, 0x3207d795430cd927},
- {0x8335616aed761f1f, 0x7f44e6bd49e807b9},
- {0xa402b9c5a8d3a6e7, 0x5f16206c9c6209a7},
- {0xcd036837130890a1, 0x36dba887c37a8c10},
- {0x802221226be55a64, 0xc2494954da2c978a},
- {0xa02aa96b06deb0fd, 0xf2db9baa10b7bd6d},
- {0xc83553c5c8965d3d, 0x6f92829494e5acc8},
- {0xfa42a8b73abbf48c, 0xcb772339ba1f17fa},
- {0x9c69a97284b578d7, 0xff2a760414536efc},
- {0xc38413cf25e2d70d, 0xfef5138519684abb},
- {0xf46518c2ef5b8cd1, 0x7eb258665fc25d6a},
- {0x98bf2f79d5993802, 0xef2f773ffbd97a62},
- {0xbeeefb584aff8603, 0xaafb550ffacfd8fb},
- {0xeeaaba2e5dbf6784, 0x95ba2a53f983cf39},
- {0x952ab45cfa97a0b2, 0xdd945a747bf26184},
- {0xba756174393d88df, 0x94f971119aeef9e5},
- {0xe912b9d1478ceb17, 0x7a37cd5601aab85e},
- {0x91abb422ccb812ee, 0xac62e055c10ab33b},
- {0xb616a12b7fe617aa, 0x577b986b314d600a},
- {0xe39c49765fdf9d94, 0xed5a7e85fda0b80c},
- {0x8e41ade9fbebc27d, 0x14588f13be847308},
- {0xb1d219647ae6b31c, 0x596eb2d8ae258fc9},
- {0xde469fbd99a05fe3, 0x6fca5f8ed9aef3bc},
- {0x8aec23d680043bee, 0x25de7bb9480d5855},
- {0xada72ccc20054ae9, 0xaf561aa79a10ae6b},
- {0xd910f7ff28069da4, 0x1b2ba1518094da05},
- {0x87aa9aff79042286, 0x90fb44d2f05d0843},
- {0xa99541bf57452b28, 0x353a1607ac744a54},
- {0xd3fa922f2d1675f2, 0x42889b8997915ce9},
- {0x847c9b5d7c2e09b7, 0x69956135febada12},
- {0xa59bc234db398c25, 0x43fab9837e699096},
- {0xcf02b2c21207ef2e, 0x94f967e45e03f4bc},
- {0x8161afb94b44f57d, 0x1d1be0eebac278f6},
- {0xa1ba1ba79e1632dc, 0x6462d92a69731733},
- {0xca28a291859bbf93, 0x7d7b8f7503cfdcff},
- {0xfcb2cb35e702af78, 0x5cda735244c3d43f},
- {0x9defbf01b061adab, 0x3a0888136afa64a8},
- {0xc56baec21c7a1916, 0x088aaa1845b8fdd1},
- {0xf6c69a72a3989f5b, 0x8aad549e57273d46},
- {0x9a3c2087a63f6399, 0x36ac54e2f678864c},
- {0xc0cb28a98fcf3c7f, 0x84576a1bb416a7de},
- {0xf0fdf2d3f3c30b9f, 0x656d44a2a11c51d6},
- {0x969eb7c47859e743, 0x9f644ae5a4b1b326},
- {0xbc4665b596706114, 0x873d5d9f0dde1fef},
- {0xeb57ff22fc0c7959, 0xa90cb506d155a7eb},
- {0x9316ff75dd87cbd8, 0x09a7f12442d588f3},
- {0xb7dcbf5354e9bece, 0x0c11ed6d538aeb30},
- {0xe5d3ef282a242e81, 0x8f1668c8a86da5fb},
- {0x8fa475791a569d10, 0xf96e017d694487bd},
- {0xb38d92d760ec4455, 0x37c981dcc395a9ad},
- {0xe070f78d3927556a, 0x85bbe253f47b1418},
- {0x8c469ab843b89562, 0x93956d7478ccec8f},
- {0xaf58416654a6babb, 0x387ac8d1970027b3},
- {0xdb2e51bfe9d0696a, 0x06997b05fcc0319f},
- {0x88fcf317f22241e2, 0x441fece3bdf81f04},
- {0xab3c2fddeeaad25a, 0xd527e81cad7626c4},
- {0xd60b3bd56a5586f1, 0x8a71e223d8d3b075},
- {0x85c7056562757456, 0xf6872d5667844e4a},
- {0xa738c6bebb12d16c, 0xb428f8ac016561dc},
- {0xd106f86e69d785c7, 0xe13336d701beba53},
- {0x82a45b450226b39c, 0xecc0024661173474},
- {0xa34d721642b06084, 0x27f002d7f95d0191},
- {0xcc20ce9bd35c78a5, 0x31ec038df7b441f5},
- {0xff290242c83396ce, 0x7e67047175a15272},
- {0x9f79a169bd203e41, 0x0f0062c6e984d387},
- {0xc75809c42c684dd1, 0x52c07b78a3e60869},
- {0xf92e0c3537826145, 0xa7709a56ccdf8a83},
- {0x9bbcc7a142b17ccb, 0x88a66076400bb692},
- {0xc2abf989935ddbfe, 0x6acff893d00ea436},
- {0xf356f7ebf83552fe, 0x0583f6b8c4124d44},
- {0x98165af37b2153de, 0xc3727a337a8b704b},
- {0xbe1bf1b059e9a8d6, 0x744f18c0592e4c5d},
- {0xeda2ee1c7064130c, 0x1162def06f79df74},
- {0x9485d4d1c63e8be7, 0x8addcb5645ac2ba9},
- {0xb9a74a0637ce2ee1, 0x6d953e2bd7173693},
- {0xe8111c87c5c1ba99, 0xc8fa8db6ccdd0438},
- {0x910ab1d4db9914a0, 0x1d9c9892400a22a3},
- {0xb54d5e4a127f59c8, 0x2503beb6d00cab4c},
- {0xe2a0b5dc971f303a, 0x2e44ae64840fd61e},
- {0x8da471a9de737e24, 0x5ceaecfed289e5d3},
- {0xb10d8e1456105dad, 0x7425a83e872c5f48},
- {0xdd50f1996b947518, 0xd12f124e28f7771a},
- {0x8a5296ffe33cc92f, 0x82bd6b70d99aaa70},
- {0xace73cbfdc0bfb7b, 0x636cc64d1001550c},
- {0xd8210befd30efa5a, 0x3c47f7e05401aa4f},
- {0x8714a775e3e95c78, 0x65acfaec34810a72},
- {0xa8d9d1535ce3b396, 0x7f1839a741a14d0e},
- {0xd31045a8341ca07c, 0x1ede48111209a051},
- {0x83ea2b892091e44d, 0x934aed0aab460433},
- {0xa4e4b66b68b65d60, 0xf81da84d56178540},
- {0xce1de40642e3f4b9, 0x36251260ab9d668f},
- {0x80d2ae83e9ce78f3, 0xc1d72b7c6b42601a},
- {0xa1075a24e4421730, 0xb24cf65b8612f820},
- {0xc94930ae1d529cfc, 0xdee033f26797b628},
- {0xfb9b7cd9a4a7443c, 0x169840ef017da3b2},
- {0x9d412e0806e88aa5, 0x8e1f289560ee864f},
- {0xc491798a08a2ad4e, 0xf1a6f2bab92a27e3},
- {0xf5b5d7ec8acb58a2, 0xae10af696774b1dc},
- {0x9991a6f3d6bf1765, 0xacca6da1e0a8ef2a},
- {0xbff610b0cc6edd3f, 0x17fd090a58d32af4},
- {0xeff394dcff8a948e, 0xddfc4b4cef07f5b1},
- {0x95f83d0a1fb69cd9, 0x4abdaf101564f98f},
- {0xbb764c4ca7a4440f, 0x9d6d1ad41abe37f2},
- {0xea53df5fd18d5513, 0x84c86189216dc5ee},
- {0x92746b9be2f8552c, 0x32fd3cf5b4e49bb5},
- {0xb7118682dbb66a77, 0x3fbc8c33221dc2a2},
- {0xe4d5e82392a40515, 0x0fabaf3feaa5334b},
- {0x8f05b1163ba6832d, 0x29cb4d87f2a7400f},
- {0xb2c71d5bca9023f8, 0x743e20e9ef511013},
- {0xdf78e4b2bd342cf6, 0x914da9246b255417},
- {0x8bab8eefb6409c1a, 0x1ad089b6c2f7548f},
- {0xae9672aba3d0c320, 0xa184ac2473b529b2},
- {0xda3c0f568cc4f3e8, 0xc9e5d72d90a2741f},
- {0x8865899617fb1871, 0x7e2fa67c7a658893},
- {0xaa7eebfb9df9de8d, 0xddbb901b98feeab8},
- {0xd51ea6fa85785631, 0x552a74227f3ea566},
- {0x8533285c936b35de, 0xd53a88958f872760},
- {0xa67ff273b8460356, 0x8a892abaf368f138},
- {0xd01fef10a657842c, 0x2d2b7569b0432d86},
- {0x8213f56a67f6b29b, 0x9c3b29620e29fc74},
- {0xa298f2c501f45f42, 0x8349f3ba91b47b90},
- {0xcb3f2f7642717713, 0x241c70a936219a74},
- {0xfe0efb53d30dd4d7, 0xed238cd383aa0111},
- {0x9ec95d1463e8a506, 0xf4363804324a40ab},
- {0xc67bb4597ce2ce48, 0xb143c6053edcd0d6},
- {0xf81aa16fdc1b81da, 0xdd94b7868e94050b},
- {0x9b10a4e5e9913128, 0xca7cf2b4191c8327},
- {0xc1d4ce1f63f57d72, 0xfd1c2f611f63a3f1},
- {0xf24a01a73cf2dccf, 0xbc633b39673c8ced},
- {0x976e41088617ca01, 0xd5be0503e085d814},
- {0xbd49d14aa79dbc82, 0x4b2d8644d8a74e19},
- {0xec9c459d51852ba2, 0xddf8e7d60ed1219f},
- {0x93e1ab8252f33b45, 0xcabb90e5c942b504},
- {0xb8da1662e7b00a17, 0x3d6a751f3b936244},
- {0xe7109bfba19c0c9d, 0x0cc512670a783ad5},
- {0x906a617d450187e2, 0x27fb2b80668b24c6},
- {0xb484f9dc9641e9da, 0xb1f9f660802dedf7},
- {0xe1a63853bbd26451, 0x5e7873f8a0396974},
- {0x8d07e33455637eb2, 0xdb0b487b6423e1e9},
- {0xb049dc016abc5e5f, 0x91ce1a9a3d2cda63},
- {0xdc5c5301c56b75f7, 0x7641a140cc7810fc},
- {0x89b9b3e11b6329ba, 0xa9e904c87fcb0a9e},
- {0xac2820d9623bf429, 0x546345fa9fbdcd45},
- {0xd732290fbacaf133, 0xa97c177947ad4096},
- {0x867f59a9d4bed6c0, 0x49ed8eabcccc485e},
- {0xa81f301449ee8c70, 0x5c68f256bfff5a75},
- {0xd226fc195c6a2f8c, 0x73832eec6fff3112},
- {0x83585d8fd9c25db7, 0xc831fd53c5ff7eac},
- {0xa42e74f3d032f525, 0xba3e7ca8b77f5e56},
- {0xcd3a1230c43fb26f, 0x28ce1bd2e55f35ec},
- {0x80444b5e7aa7cf85, 0x7980d163cf5b81b4},
- {0xa0555e361951c366, 0xd7e105bcc3326220},
- {0xc86ab5c39fa63440, 0x8dd9472bf3fefaa8},
- {0xfa856334878fc150, 0xb14f98f6f0feb952},
- {0x9c935e00d4b9d8d2, 0x6ed1bf9a569f33d4},
- {0xc3b8358109e84f07, 0x0a862f80ec4700c9},
- {0xf4a642e14c6262c8, 0xcd27bb612758c0fb},
- {0x98e7e9cccfbd7dbd, 0x8038d51cb897789d},
- {0xbf21e44003acdd2c, 0xe0470a63e6bd56c4},
- {0xeeea5d5004981478, 0x1858ccfce06cac75},
- {0x95527a5202df0ccb, 0x0f37801e0c43ebc9},
- {0xbaa718e68396cffd, 0xd30560258f54e6bb},
- {0xe950df20247c83fd, 0x47c6b82ef32a206a},
- {0x91d28b7416cdd27e, 0x4cdc331d57fa5442},
- {0xb6472e511c81471d, 0xe0133fe4adf8e953},
- {0xe3d8f9e563a198e5, 0x58180fddd97723a7},
- {0x8e679c2f5e44ff8f, 0x570f09eaa7ea7649},
- {0xb201833b35d63f73, 0x2cd2cc6551e513db},
- {0xde81e40a034bcf4f, 0xf8077f7ea65e58d2},
- {0x8b112e86420f6191, 0xfb04afaf27faf783},
- {0xadd57a27d29339f6, 0x79c5db9af1f9b564},
- {0xd94ad8b1c7380874, 0x18375281ae7822bd},
- {0x87cec76f1c830548, 0x8f2293910d0b15b6},
- {0xa9c2794ae3a3c69a, 0xb2eb3875504ddb23},
- {0xd433179d9c8cb841, 0x5fa60692a46151ec},
- {0x849feec281d7f328, 0xdbc7c41ba6bcd334},
- {0xa5c7ea73224deff3, 0x12b9b522906c0801},
- {0xcf39e50feae16bef, 0xd768226b34870a01},
- {0x81842f29f2cce375, 0xe6a1158300d46641},
- {0xa1e53af46f801c53, 0x60495ae3c1097fd1},
- {0xca5e89b18b602368, 0x385bb19cb14bdfc5},
- {0xfcf62c1dee382c42, 0x46729e03dd9ed7b6},
- {0x9e19db92b4e31ba9, 0x6c07a2c26a8346d2},
- {0xc5a05277621be293, 0xc7098b7305241886},
- {0xf70867153aa2db38, 0xb8cbee4fc66d1ea8},
- {0x9a65406d44a5c903, 0x737f74f1dc043329},
- {0xc0fe908895cf3b44, 0x505f522e53053ff3},
- {0xf13e34aabb430a15, 0x647726b9e7c68ff0},
- {0x96c6e0eab509e64d, 0x5eca783430dc19f6},
- {0xbc789925624c5fe0, 0xb67d16413d132073},
- {0xeb96bf6ebadf77d8, 0xe41c5bd18c57e890},
- {0x933e37a534cbaae7, 0x8e91b962f7b6f15a},
- {0xb80dc58e81fe95a1, 0x723627bbb5a4adb1},
- {0xe61136f2227e3b09, 0xcec3b1aaa30dd91d},
- {0x8fcac257558ee4e6, 0x213a4f0aa5e8a7b2},
- {0xb3bd72ed2af29e1f, 0xa988e2cd4f62d19e},
- {0xe0accfa875af45a7, 0x93eb1b80a33b8606},
- {0x8c6c01c9498d8b88, 0xbc72f130660533c4},
- {0xaf87023b9bf0ee6a, 0xeb8fad7c7f8680b5},
- {0xdb68c2ca82ed2a05, 0xa67398db9f6820e2},
-#else
- {0xff77b1fcbebcdc4f, 0x25e8e89c13bb0f7b},
- {0xce5d73ff402d98e3, 0xfb0a3d212dc81290},
- {0xa6b34ad8c9dfc06f, 0xf42faa48c0ea481f},
- {0x86a8d39ef77164bc, 0xae5dff9c02033198},
- {0xd98ddaee19068c76, 0x3badd624dd9b0958},
- {0xafbd2350644eeacf, 0xe5d1929ef90898fb},
- {0x8df5efabc5979c8f, 0xca8d3ffa1ef463c2},
- {0xe55990879ddcaabd, 0xcc420a6a101d0516},
- {0xb94470938fa89bce, 0xf808e40e8d5b3e6a},
- {0x95a8637627989aad, 0xdde7001379a44aa9},
- {0xf1c90080baf72cb1, 0x5324c68b12dd6339},
- {0xc350000000000000, 0x0000000000000000},
- {0x9dc5ada82b70b59d, 0xf020000000000000},
- {0xfee50b7025c36a08, 0x02f236d04753d5b5},
- {0xcde6fd5e09abcf26, 0xed4c0226b55e6f87},
- {0xa6539930bf6bff45, 0x84db8346b786151d},
- {0x865b86925b9bc5c2, 0x0b8a2392ba45a9b3},
- {0xd910f7ff28069da4, 0x1b2ba1518094da05},
- {0xaf58416654a6babb, 0x387ac8d1970027b3},
- {0x8da471a9de737e24, 0x5ceaecfed289e5d3},
- {0xe4d5e82392a40515, 0x0fabaf3feaa5334b},
- {0xb8da1662e7b00a17, 0x3d6a751f3b936244},
- {0x95527a5202df0ccb, 0x0f37801e0c43ebc9},
- {0xf13e34aabb430a15, 0x647726b9e7c68ff0}
-#endif
- };
-
-#if FMT_USE_FULL_CACHE_DRAGONBOX
- return pow10_significands[k - float_info<double>::min_k];
-#else
- static constexpr const uint64_t powers_of_5_64[] = {
- 0x0000000000000001, 0x0000000000000005, 0x0000000000000019,
- 0x000000000000007d, 0x0000000000000271, 0x0000000000000c35,
- 0x0000000000003d09, 0x000000000001312d, 0x000000000005f5e1,
- 0x00000000001dcd65, 0x00000000009502f9, 0x0000000002e90edd,
- 0x000000000e8d4a51, 0x0000000048c27395, 0x000000016bcc41e9,
- 0x000000071afd498d, 0x0000002386f26fc1, 0x000000b1a2bc2ec5,
- 0x000003782dace9d9, 0x00001158e460913d, 0x000056bc75e2d631,
- 0x0001b1ae4d6e2ef5, 0x000878678326eac9, 0x002a5a058fc295ed,
- 0x00d3c21bcecceda1, 0x0422ca8b0a00a425, 0x14adf4b7320334b9};
-
- static const int compression_ratio = 27;
-
- // Compute base index.
- int cache_index = (k - float_info<double>::min_k) / compression_ratio;
- int kb = cache_index * compression_ratio + float_info<double>::min_k;
- int offset = k - kb;
-
- // Get base cache.
- uint128_fallback base_cache = pow10_significands[cache_index];
- if (offset == 0) return base_cache;
-
- // Compute the required amount of bit-shift.
- int alpha = floor_log2_pow10(kb + offset) - floor_log2_pow10(kb) - offset;
- FMT_ASSERT(alpha > 0 && alpha < 64, "shifting error detected");
-
- // Try to recover the real cache.
- uint64_t pow5 = powers_of_5_64[offset];
- uint128_fallback recovered_cache = umul128(base_cache.high(), pow5);
- uint128_fallback middle_low = umul128(base_cache.low(), pow5);
-
- recovered_cache += middle_low.high();
-
- uint64_t high_to_middle = recovered_cache.high() << (64 - alpha);
- uint64_t middle_to_low = recovered_cache.low() << (64 - alpha);
-
- recovered_cache =
- uint128_fallback{(recovered_cache.low() >> alpha) | high_to_middle,
- ((middle_low.low() >> alpha) | middle_to_low)};
- FMT_ASSERT(recovered_cache.low() + 1 != 0, "");
- return {recovered_cache.high(), recovered_cache.low() + 1};
-#endif
- }
-
- struct compute_mul_result {
- carrier_uint result;
- bool is_integer;
- };
- struct compute_mul_parity_result {
- bool parity;
- bool is_integer;
- };
-
- static auto compute_mul(carrier_uint u,
- const cache_entry_type& cache) noexcept
- -> compute_mul_result {
- auto r = umul192_upper128(u, cache);
- return {r.high(), r.low() == 0};
- }
-
- static auto compute_delta(cache_entry_type const& cache, int beta) noexcept
- -> uint32_t {
- return static_cast<uint32_t>(cache.high() >> (64 - 1 - beta));
- }
-
- static auto compute_mul_parity(carrier_uint two_f,
- const cache_entry_type& cache,
- int beta) noexcept
- -> compute_mul_parity_result {
- FMT_ASSERT(beta >= 1, "");
- FMT_ASSERT(beta < 64, "");
-
- auto r = umul192_lower128(two_f, cache);
- return {((r.high() >> (64 - beta)) & 1) != 0,
- ((r.high() << beta) | (r.low() >> (64 - beta))) == 0};
- }
-
- static auto compute_left_endpoint_for_shorter_interval_case(
- const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
- return (cache.high() -
- (cache.high() >> (num_significand_bits<double>() + 2))) >>
- (64 - num_significand_bits<double>() - 1 - beta);
- }
-
- static auto compute_right_endpoint_for_shorter_interval_case(
- const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
- return (cache.high() +
- (cache.high() >> (num_significand_bits<double>() + 1))) >>
- (64 - num_significand_bits<double>() - 1 - beta);
- }
-
- static auto compute_round_up_for_shorter_interval_case(
- const cache_entry_type& cache, int beta) noexcept -> carrier_uint {
- return ((cache.high() >> (64 - num_significand_bits<double>() - 2 - beta)) +
- 1) /
- 2;
- }
-};
-
-FMT_FUNC auto get_cached_power(int k) noexcept -> uint128_fallback {
- return cache_accessor<double>::get_cached_power(k);
-}
-
-// Various integer checks
-template <typename T>
-auto is_left_endpoint_integer_shorter_interval(int exponent) noexcept -> bool {
- const int case_shorter_interval_left_endpoint_lower_threshold = 2;
- const int case_shorter_interval_left_endpoint_upper_threshold = 3;
- return exponent >= case_shorter_interval_left_endpoint_lower_threshold &&
- exponent <= case_shorter_interval_left_endpoint_upper_threshold;
-}
-
-// Remove trailing zeros from n and return the number of zeros removed (float)
-FMT_INLINE int remove_trailing_zeros(uint32_t& n, int s = 0) noexcept {
- FMT_ASSERT(n != 0, "");
- // Modular inverse of 5 (mod 2^32): (mod_inv_5 * 5) mod 2^32 = 1.
- constexpr uint32_t mod_inv_5 = 0xcccccccd;
- constexpr uint32_t mod_inv_25 = 0xc28f5c29; // = mod_inv_5 * mod_inv_5
-
- while (true) {
- auto q = rotr(n * mod_inv_25, 2);
- if (q > max_value<uint32_t>() / 100) break;
- n = q;
- s += 2;
- }
- auto q = rotr(n * mod_inv_5, 1);
- if (q <= max_value<uint32_t>() / 10) {
- n = q;
- s |= 1;
- }
- return s;
-}
-
-// Removes trailing zeros and returns the number of zeros removed (double)
-FMT_INLINE int remove_trailing_zeros(uint64_t& n) noexcept {
- FMT_ASSERT(n != 0, "");
-
- // This magic number is ceil(2^90 / 10^8).
- constexpr uint64_t magic_number = 12379400392853802749ull;
- auto nm = umul128(n, magic_number);
-
- // Is n is divisible by 10^8?
- if ((nm.high() & ((1ull << (90 - 64)) - 1)) == 0 && nm.low() < magic_number) {
- // If yes, work with the quotient...
- auto n32 = static_cast<uint32_t>(nm.high() >> (90 - 64));
- // ... and use the 32 bit variant of the function
- int s = remove_trailing_zeros(n32, 8);
- n = n32;
- return s;
- }
-
- // If n is not divisible by 10^8, work with n itself.
- constexpr uint64_t mod_inv_5 = 0xcccccccccccccccd;
- constexpr uint64_t mod_inv_25 = 0x8f5c28f5c28f5c29; // mod_inv_5 * mod_inv_5
-
- int s = 0;
- while (true) {
- auto q = rotr(n * mod_inv_25, 2);
- if (q > max_value<uint64_t>() / 100) break;
- n = q;
- s += 2;
- }
- auto q = rotr(n * mod_inv_5, 1);
- if (q <= max_value<uint64_t>() / 10) {
- n = q;
- s |= 1;
- }
-
- return s;
-}
-
-// The main algorithm for shorter interval case
-template <typename T>
-FMT_INLINE decimal_fp<T> shorter_interval_case(int exponent) noexcept {
- decimal_fp<T> ret_value;
- // Compute k and beta
- const int minus_k = floor_log10_pow2_minus_log10_4_over_3(exponent);
- const int beta = exponent + floor_log2_pow10(-minus_k);
-
- // Compute xi and zi
- using cache_entry_type = typename cache_accessor<T>::cache_entry_type;
- const cache_entry_type cache = cache_accessor<T>::get_cached_power(-minus_k);
-
- auto xi = cache_accessor<T>::compute_left_endpoint_for_shorter_interval_case(
- cache, beta);
- auto zi = cache_accessor<T>::compute_right_endpoint_for_shorter_interval_case(
- cache, beta);
-
- // If the left endpoint is not an integer, increase it
- if (!is_left_endpoint_integer_shorter_interval<T>(exponent)) ++xi;
-
- // Try bigger divisor
- ret_value.significand = zi / 10;
-
- // If succeed, remove trailing zeros if necessary and return
- if (ret_value.significand * 10 >= xi) {
- ret_value.exponent = minus_k + 1;
- ret_value.exponent += remove_trailing_zeros(ret_value.significand);
- return ret_value;
- }
-
- // Otherwise, compute the round-up of y
- ret_value.significand =
- cache_accessor<T>::compute_round_up_for_shorter_interval_case(cache,
- beta);
- ret_value.exponent = minus_k;
-
- // When tie occurs, choose one of them according to the rule
- if (exponent >= float_info<T>::shorter_interval_tie_lower_threshold &&
- exponent <= float_info<T>::shorter_interval_tie_upper_threshold) {
- ret_value.significand = ret_value.significand % 2 == 0
- ? ret_value.significand
- : ret_value.significand - 1;
- } else if (ret_value.significand < xi) {
- ++ret_value.significand;
- }
- return ret_value;
-}
-
-template <typename T> auto to_decimal(T x) noexcept -> decimal_fp<T> {
- // Step 1: integer promotion & Schubfach multiplier calculation.
-
- using carrier_uint = typename float_info<T>::carrier_uint;
- using cache_entry_type = typename cache_accessor<T>::cache_entry_type;
- auto br = bit_cast<carrier_uint>(x);
-
- // Extract significand bits and exponent bits.
- const carrier_uint significand_mask =
- (static_cast<carrier_uint>(1) << num_significand_bits<T>()) - 1;
- carrier_uint significand = (br & significand_mask);
- int exponent =
- static_cast<int>((br & exponent_mask<T>()) >> num_significand_bits<T>());
-
- if (exponent != 0) { // Check if normal.
- exponent -= exponent_bias<T>() + num_significand_bits<T>();
-
- // Shorter interval case; proceed like Schubfach.
- // In fact, when exponent == 1 and significand == 0, the interval is
- // regular. However, it can be shown that the end-results are anyway same.
- if (significand == 0) return shorter_interval_case<T>(exponent);
-
- significand |= (static_cast<carrier_uint>(1) << num_significand_bits<T>());
- } else {
- // Subnormal case; the interval is always regular.
- if (significand == 0) return {0, 0};
- exponent =
- std::numeric_limits<T>::min_exponent - num_significand_bits<T>() - 1;
- }
-
- const bool include_left_endpoint = (significand % 2 == 0);
- const bool include_right_endpoint = include_left_endpoint;
-
- // Compute k and beta.
- const int minus_k = floor_log10_pow2(exponent) - float_info<T>::kappa;
- const cache_entry_type cache = cache_accessor<T>::get_cached_power(-minus_k);
- const int beta = exponent + floor_log2_pow10(-minus_k);
-
- // Compute zi and deltai.
- // 10^kappa <= deltai < 10^(kappa + 1)
- const uint32_t deltai = cache_accessor<T>::compute_delta(cache, beta);
- const carrier_uint two_fc = significand << 1;
-
- // For the case of binary32, the result of integer check is not correct for
- // 29711844 * 2^-82
- // = 6.1442653300000000008655037797566933477355632930994033813476... * 10^-18
- // and 29711844 * 2^-81
- // = 1.2288530660000000001731007559513386695471126586198806762695... * 10^-17,
- // and they are the unique counterexamples. However, since 29711844 is even,
- // this does not cause any problem for the endpoints calculations; it can only
- // cause a problem when we need to perform integer check for the center.
- // Fortunately, with these inputs, that branch is never executed, so we are
- // fine.
- const typename cache_accessor<T>::compute_mul_result z_mul =
- cache_accessor<T>::compute_mul((two_fc | 1) << beta, cache);
-
- // Step 2: Try larger divisor; remove trailing zeros if necessary.
-
- // Using an upper bound on zi, we might be able to optimize the division
- // better than the compiler; we are computing zi / big_divisor here.
- decimal_fp<T> ret_value;
- ret_value.significand = divide_by_10_to_kappa_plus_1(z_mul.result);
- uint32_t r = static_cast<uint32_t>(z_mul.result - float_info<T>::big_divisor *
- ret_value.significand);
-
- if (r < deltai) {
- // Exclude the right endpoint if necessary.
- if (r == 0 && (z_mul.is_integer & !include_right_endpoint)) {
- --ret_value.significand;
- r = float_info<T>::big_divisor;
- goto small_divisor_case_label;
- }
- } else if (r > deltai) {
- goto small_divisor_case_label;
- } else {
- // r == deltai; compare fractional parts.
- const typename cache_accessor<T>::compute_mul_parity_result x_mul =
- cache_accessor<T>::compute_mul_parity(two_fc - 1, cache, beta);
-
- if (!(x_mul.parity | (x_mul.is_integer & include_left_endpoint)))
- goto small_divisor_case_label;
- }
- ret_value.exponent = minus_k + float_info<T>::kappa + 1;
-
- // We may need to remove trailing zeros.
- ret_value.exponent += remove_trailing_zeros(ret_value.significand);
- return ret_value;
-
- // Step 3: Find the significand with the smaller divisor.
-
-small_divisor_case_label:
- ret_value.significand *= 10;
- ret_value.exponent = minus_k + float_info<T>::kappa;
-
- uint32_t dist = r - (deltai / 2) + (float_info<T>::small_divisor / 2);
- const bool approx_y_parity =
- ((dist ^ (float_info<T>::small_divisor / 2)) & 1) != 0;
-
- // Is dist divisible by 10^kappa?
- const bool divisible_by_small_divisor =
- check_divisibility_and_divide_by_pow10<float_info<T>::kappa>(dist);
-
- // Add dist / 10^kappa to the significand.
- ret_value.significand += dist;
-
- if (!divisible_by_small_divisor) return ret_value;
-
- // Check z^(f) >= epsilon^(f).
- // We have either yi == zi - epsiloni or yi == (zi - epsiloni) - 1,
- // where yi == zi - epsiloni if and only if z^(f) >= epsilon^(f).
- // Since there are only 2 possibilities, we only need to care about the
- // parity. Also, zi and r should have the same parity since the divisor
- // is an even number.
- const auto y_mul = cache_accessor<T>::compute_mul_parity(two_fc, cache, beta);
-
- // If z^(f) >= epsilon^(f), we might have a tie when z^(f) == epsilon^(f),
- // or equivalently, when y is an integer.
- if (y_mul.parity != approx_y_parity)
- --ret_value.significand;
- else if (y_mul.is_integer & (ret_value.significand % 2 != 0))
- --ret_value.significand;
- return ret_value;
-}
-} // namespace dragonbox
-} // namespace detail
-
-template <> struct formatter<detail::bigint> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx)
- -> format_parse_context::iterator {
- return ctx.begin();
- }
-
- auto format(const detail::bigint& n, format_context& ctx) const
- -> format_context::iterator {
- auto out = ctx.out();
- bool first = true;
- for (auto i = n.bigits_.size(); i > 0; --i) {
- auto value = n.bigits_[i - 1u];
- if (first) {
- out = fmt::format_to(out, FMT_STRING("{:x}"), value);
- first = false;
- continue;
- }
- out = fmt::format_to(out, FMT_STRING("{:08x}"), value);
- }
- if (n.exp_ > 0)
- out = fmt::format_to(out, FMT_STRING("p{}"),
- n.exp_ * detail::bigint::bigit_bits);
- return out;
- }
-};
-
-FMT_FUNC detail::utf8_to_utf16::utf8_to_utf16(string_view s) {
- for_each_codepoint(s, [this](uint32_t cp, string_view) {
- if (cp == invalid_code_point) FMT_THROW(std::runtime_error("invalid utf8"));
- if (cp <= 0xFFFF) {
- buffer_.push_back(static_cast<wchar_t>(cp));
- } else {
- cp -= 0x10000;
- buffer_.push_back(static_cast<wchar_t>(0xD800 + (cp >> 10)));
- buffer_.push_back(static_cast<wchar_t>(0xDC00 + (cp & 0x3FF)));
- }
- return true;
- });
- buffer_.push_back(0);
-}
-
-FMT_FUNC void format_system_error(detail::buffer<char>& out, int error_code,
- const char* message) noexcept {
- FMT_TRY {
- auto ec = std::error_code(error_code, std::generic_category());
- write(std::back_inserter(out), std::system_error(ec, message).what());
- return;
- }
- FMT_CATCH(...) {}
- format_error_code(out, error_code, message);
-}
-
-FMT_FUNC void report_system_error(int error_code,
- const char* message) noexcept {
- report_error(format_system_error, error_code, message);
-}
-
-FMT_FUNC auto vformat(string_view fmt, format_args args) -> std::string {
- // Don't optimize the "{}" case to keep the binary size small and because it
- // can be better optimized in fmt::format anyway.
- auto buffer = memory_buffer();
- detail::vformat_to(buffer, fmt, args);
- return to_string(buffer);
-}
-
-namespace detail {
-#if !defined(_WIN32) || defined(FMT_WINDOWS_NO_WCHAR)
-FMT_FUNC auto write_console(int, string_view) -> bool { return false; }
-FMT_FUNC auto write_console(std::FILE*, string_view) -> bool { return false; }
-#else
-using dword = conditional_t<sizeof(long) == 4, unsigned long, unsigned>;
-extern "C" __declspec(dllimport) int __stdcall WriteConsoleW( //
- void*, const void*, dword, dword*, void*);
-
-FMT_FUNC bool write_console(int fd, string_view text) {
- auto u16 = utf8_to_utf16(text);
- return WriteConsoleW(reinterpret_cast<void*>(_get_osfhandle(fd)), u16.c_str(),
- static_cast<dword>(u16.size()), nullptr, nullptr) != 0;
-}
-
-FMT_FUNC auto write_console(std::FILE* f, string_view text) -> bool {
- return write_console(_fileno(f), text);
-}
-#endif
-
-#ifdef _WIN32
-// Print assuming legacy (non-Unicode) encoding.
-FMT_FUNC void vprint_mojibake(std::FILE* f, string_view fmt, format_args args) {
- auto buffer = memory_buffer();
- detail::vformat_to(buffer, fmt, args);
- fwrite_fully(buffer.data(), buffer.size(), f);
-}
-#endif
-
-FMT_FUNC void print(std::FILE* f, string_view text) {
-#ifdef _WIN32
- int fd = _fileno(f);
- if (_isatty(fd)) {
- std::fflush(f);
- if (write_console(fd, text)) return;
- }
-#endif
- fwrite_fully(text.data(), text.size(), f);
-}
-} // namespace detail
-
-FMT_FUNC void vprint(std::FILE* f, string_view fmt, format_args args) {
- auto buffer = memory_buffer();
- detail::vformat_to(buffer, fmt, args);
- detail::print(f, {buffer.data(), buffer.size()});
-}
-
-FMT_FUNC void vprint(string_view fmt, format_args args) {
- vprint(stdout, fmt, args);
-}
-
-namespace detail {
-
-struct singleton {
- unsigned char upper;
- unsigned char lower_count;
-};
-
-inline auto is_printable(uint16_t x, const singleton* singletons,
- size_t singletons_size,
- const unsigned char* singleton_lowers,
- const unsigned char* normal, size_t normal_size)
- -> bool {
- auto upper = x >> 8;
- auto lower_start = 0;
- for (size_t i = 0; i < singletons_size; ++i) {
- auto s = singletons[i];
- auto lower_end = lower_start + s.lower_count;
- if (upper < s.upper) break;
- if (upper == s.upper) {
- for (auto j = lower_start; j < lower_end; ++j) {
- if (singleton_lowers[j] == (x & 0xff)) return false;
- }
- }
- lower_start = lower_end;
- }
-
- auto xsigned = static_cast<int>(x);
- auto current = true;
- for (size_t i = 0; i < normal_size; ++i) {
- auto v = static_cast<int>(normal[i]);
- auto len = (v & 0x80) != 0 ? (v & 0x7f) << 8 | normal[++i] : v;
- xsigned -= len;
- if (xsigned < 0) break;
- current = !current;
- }
- return current;
-}
-
-// This code is generated by support/printable.py.
-FMT_FUNC auto is_printable(uint32_t cp) -> bool {
- static constexpr singleton singletons0[] = {
- {0x00, 1}, {0x03, 5}, {0x05, 6}, {0x06, 3}, {0x07, 6}, {0x08, 8},
- {0x09, 17}, {0x0a, 28}, {0x0b, 25}, {0x0c, 20}, {0x0d, 16}, {0x0e, 13},
- {0x0f, 4}, {0x10, 3}, {0x12, 18}, {0x13, 9}, {0x16, 1}, {0x17, 5},
- {0x18, 2}, {0x19, 3}, {0x1a, 7}, {0x1c, 2}, {0x1d, 1}, {0x1f, 22},
- {0x20, 3}, {0x2b, 3}, {0x2c, 2}, {0x2d, 11}, {0x2e, 1}, {0x30, 3},
- {0x31, 2}, {0x32, 1}, {0xa7, 2}, {0xa9, 2}, {0xaa, 4}, {0xab, 8},
- {0xfa, 2}, {0xfb, 5}, {0xfd, 4}, {0xfe, 3}, {0xff, 9},
- };
- static constexpr unsigned char singletons0_lower[] = {
- 0xad, 0x78, 0x79, 0x8b, 0x8d, 0xa2, 0x30, 0x57, 0x58, 0x8b, 0x8c, 0x90,
- 0x1c, 0x1d, 0xdd, 0x0e, 0x0f, 0x4b, 0x4c, 0xfb, 0xfc, 0x2e, 0x2f, 0x3f,
- 0x5c, 0x5d, 0x5f, 0xb5, 0xe2, 0x84, 0x8d, 0x8e, 0x91, 0x92, 0xa9, 0xb1,
- 0xba, 0xbb, 0xc5, 0xc6, 0xc9, 0xca, 0xde, 0xe4, 0xe5, 0xff, 0x00, 0x04,
- 0x11, 0x12, 0x29, 0x31, 0x34, 0x37, 0x3a, 0x3b, 0x3d, 0x49, 0x4a, 0x5d,
- 0x84, 0x8e, 0x92, 0xa9, 0xb1, 0xb4, 0xba, 0xbb, 0xc6, 0xca, 0xce, 0xcf,
- 0xe4, 0xe5, 0x00, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a,
- 0x3b, 0x45, 0x46, 0x49, 0x4a, 0x5e, 0x64, 0x65, 0x84, 0x91, 0x9b, 0x9d,
- 0xc9, 0xce, 0xcf, 0x0d, 0x11, 0x29, 0x45, 0x49, 0x57, 0x64, 0x65, 0x8d,
- 0x91, 0xa9, 0xb4, 0xba, 0xbb, 0xc5, 0xc9, 0xdf, 0xe4, 0xe5, 0xf0, 0x0d,
- 0x11, 0x45, 0x49, 0x64, 0x65, 0x80, 0x84, 0xb2, 0xbc, 0xbe, 0xbf, 0xd5,
- 0xd7, 0xf0, 0xf1, 0x83, 0x85, 0x8b, 0xa4, 0xa6, 0xbe, 0xbf, 0xc5, 0xc7,
- 0xce, 0xcf, 0xda, 0xdb, 0x48, 0x98, 0xbd, 0xcd, 0xc6, 0xce, 0xcf, 0x49,
- 0x4e, 0x4f, 0x57, 0x59, 0x5e, 0x5f, 0x89, 0x8e, 0x8f, 0xb1, 0xb6, 0xb7,
- 0xbf, 0xc1, 0xc6, 0xc7, 0xd7, 0x11, 0x16, 0x17, 0x5b, 0x5c, 0xf6, 0xf7,
- 0xfe, 0xff, 0x80, 0x0d, 0x6d, 0x71, 0xde, 0xdf, 0x0e, 0x0f, 0x1f, 0x6e,
- 0x6f, 0x1c, 0x1d, 0x5f, 0x7d, 0x7e, 0xae, 0xaf, 0xbb, 0xbc, 0xfa, 0x16,
- 0x17, 0x1e, 0x1f, 0x46, 0x47, 0x4e, 0x4f, 0x58, 0x5a, 0x5c, 0x5e, 0x7e,
- 0x7f, 0xb5, 0xc5, 0xd4, 0xd5, 0xdc, 0xf0, 0xf1, 0xf5, 0x72, 0x73, 0x8f,
- 0x74, 0x75, 0x96, 0x2f, 0x5f, 0x26, 0x2e, 0x2f, 0xa7, 0xaf, 0xb7, 0xbf,
- 0xc7, 0xcf, 0xd7, 0xdf, 0x9a, 0x40, 0x97, 0x98, 0x30, 0x8f, 0x1f, 0xc0,
- 0xc1, 0xce, 0xff, 0x4e, 0x4f, 0x5a, 0x5b, 0x07, 0x08, 0x0f, 0x10, 0x27,
- 0x2f, 0xee, 0xef, 0x6e, 0x6f, 0x37, 0x3d, 0x3f, 0x42, 0x45, 0x90, 0x91,
- 0xfe, 0xff, 0x53, 0x67, 0x75, 0xc8, 0xc9, 0xd0, 0xd1, 0xd8, 0xd9, 0xe7,
- 0xfe, 0xff,
- };
- static constexpr singleton singletons1[] = {
- {0x00, 6}, {0x01, 1}, {0x03, 1}, {0x04, 2}, {0x08, 8}, {0x09, 2},
- {0x0a, 5}, {0x0b, 2}, {0x0e, 4}, {0x10, 1}, {0x11, 2}, {0x12, 5},
- {0x13, 17}, {0x14, 1}, {0x15, 2}, {0x17, 2}, {0x19, 13}, {0x1c, 5},
- {0x1d, 8}, {0x24, 1}, {0x6a, 3}, {0x6b, 2}, {0xbc, 2}, {0xd1, 2},
- {0xd4, 12}, {0xd5, 9}, {0xd6, 2}, {0xd7, 2}, {0xda, 1}, {0xe0, 5},
- {0xe1, 2}, {0xe8, 2}, {0xee, 32}, {0xf0, 4}, {0xf8, 2}, {0xf9, 2},
- {0xfa, 2}, {0xfb, 1},
- };
- static constexpr unsigned char singletons1_lower[] = {
- 0x0c, 0x27, 0x3b, 0x3e, 0x4e, 0x4f, 0x8f, 0x9e, 0x9e, 0x9f, 0x06, 0x07,
- 0x09, 0x36, 0x3d, 0x3e, 0x56, 0xf3, 0xd0, 0xd1, 0x04, 0x14, 0x18, 0x36,
- 0x37, 0x56, 0x57, 0x7f, 0xaa, 0xae, 0xaf, 0xbd, 0x35, 0xe0, 0x12, 0x87,
- 0x89, 0x8e, 0x9e, 0x04, 0x0d, 0x0e, 0x11, 0x12, 0x29, 0x31, 0x34, 0x3a,
- 0x45, 0x46, 0x49, 0x4a, 0x4e, 0x4f, 0x64, 0x65, 0x5c, 0xb6, 0xb7, 0x1b,
- 0x1c, 0x07, 0x08, 0x0a, 0x0b, 0x14, 0x17, 0x36, 0x39, 0x3a, 0xa8, 0xa9,
- 0xd8, 0xd9, 0x09, 0x37, 0x90, 0x91, 0xa8, 0x07, 0x0a, 0x3b, 0x3e, 0x66,
- 0x69, 0x8f, 0x92, 0x6f, 0x5f, 0xee, 0xef, 0x5a, 0x62, 0x9a, 0x9b, 0x27,
- 0x28, 0x55, 0x9d, 0xa0, 0xa1, 0xa3, 0xa4, 0xa7, 0xa8, 0xad, 0xba, 0xbc,
- 0xc4, 0x06, 0x0b, 0x0c, 0x15, 0x1d, 0x3a, 0x3f, 0x45, 0x51, 0xa6, 0xa7,
- 0xcc, 0xcd, 0xa0, 0x07, 0x19, 0x1a, 0x22, 0x25, 0x3e, 0x3f, 0xc5, 0xc6,
- 0x04, 0x20, 0x23, 0x25, 0x26, 0x28, 0x33, 0x38, 0x3a, 0x48, 0x4a, 0x4c,
- 0x50, 0x53, 0x55, 0x56, 0x58, 0x5a, 0x5c, 0x5e, 0x60, 0x63, 0x65, 0x66,
- 0x6b, 0x73, 0x78, 0x7d, 0x7f, 0x8a, 0xa4, 0xaa, 0xaf, 0xb0, 0xc0, 0xd0,
- 0xae, 0xaf, 0x79, 0xcc, 0x6e, 0x6f, 0x93,
- };
- static constexpr unsigned char normal0[] = {
- 0x00, 0x20, 0x5f, 0x22, 0x82, 0xdf, 0x04, 0x82, 0x44, 0x08, 0x1b, 0x04,
- 0x06, 0x11, 0x81, 0xac, 0x0e, 0x80, 0xab, 0x35, 0x28, 0x0b, 0x80, 0xe0,
- 0x03, 0x19, 0x08, 0x01, 0x04, 0x2f, 0x04, 0x34, 0x04, 0x07, 0x03, 0x01,
- 0x07, 0x06, 0x07, 0x11, 0x0a, 0x50, 0x0f, 0x12, 0x07, 0x55, 0x07, 0x03,
- 0x04, 0x1c, 0x0a, 0x09, 0x03, 0x08, 0x03, 0x07, 0x03, 0x02, 0x03, 0x03,
- 0x03, 0x0c, 0x04, 0x05, 0x03, 0x0b, 0x06, 0x01, 0x0e, 0x15, 0x05, 0x3a,
- 0x03, 0x11, 0x07, 0x06, 0x05, 0x10, 0x07, 0x57, 0x07, 0x02, 0x07, 0x15,
- 0x0d, 0x50, 0x04, 0x43, 0x03, 0x2d, 0x03, 0x01, 0x04, 0x11, 0x06, 0x0f,
- 0x0c, 0x3a, 0x04, 0x1d, 0x25, 0x5f, 0x20, 0x6d, 0x04, 0x6a, 0x25, 0x80,
- 0xc8, 0x05, 0x82, 0xb0, 0x03, 0x1a, 0x06, 0x82, 0xfd, 0x03, 0x59, 0x07,
- 0x15, 0x0b, 0x17, 0x09, 0x14, 0x0c, 0x14, 0x0c, 0x6a, 0x06, 0x0a, 0x06,
- 0x1a, 0x06, 0x59, 0x07, 0x2b, 0x05, 0x46, 0x0a, 0x2c, 0x04, 0x0c, 0x04,
- 0x01, 0x03, 0x31, 0x0b, 0x2c, 0x04, 0x1a, 0x06, 0x0b, 0x03, 0x80, 0xac,
- 0x06, 0x0a, 0x06, 0x21, 0x3f, 0x4c, 0x04, 0x2d, 0x03, 0x74, 0x08, 0x3c,
- 0x03, 0x0f, 0x03, 0x3c, 0x07, 0x38, 0x08, 0x2b, 0x05, 0x82, 0xff, 0x11,
- 0x18, 0x08, 0x2f, 0x11, 0x2d, 0x03, 0x20, 0x10, 0x21, 0x0f, 0x80, 0x8c,
- 0x04, 0x82, 0x97, 0x19, 0x0b, 0x15, 0x88, 0x94, 0x05, 0x2f, 0x05, 0x3b,
- 0x07, 0x02, 0x0e, 0x18, 0x09, 0x80, 0xb3, 0x2d, 0x74, 0x0c, 0x80, 0xd6,
- 0x1a, 0x0c, 0x05, 0x80, 0xff, 0x05, 0x80, 0xdf, 0x0c, 0xee, 0x0d, 0x03,
- 0x84, 0x8d, 0x03, 0x37, 0x09, 0x81, 0x5c, 0x14, 0x80, 0xb8, 0x08, 0x80,
- 0xcb, 0x2a, 0x38, 0x03, 0x0a, 0x06, 0x38, 0x08, 0x46, 0x08, 0x0c, 0x06,
- 0x74, 0x0b, 0x1e, 0x03, 0x5a, 0x04, 0x59, 0x09, 0x80, 0x83, 0x18, 0x1c,
- 0x0a, 0x16, 0x09, 0x4c, 0x04, 0x80, 0x8a, 0x06, 0xab, 0xa4, 0x0c, 0x17,
- 0x04, 0x31, 0xa1, 0x04, 0x81, 0xda, 0x26, 0x07, 0x0c, 0x05, 0x05, 0x80,
- 0xa5, 0x11, 0x81, 0x6d, 0x10, 0x78, 0x28, 0x2a, 0x06, 0x4c, 0x04, 0x80,
- 0x8d, 0x04, 0x80, 0xbe, 0x03, 0x1b, 0x03, 0x0f, 0x0d,
- };
- static constexpr unsigned char normal1[] = {
- 0x5e, 0x22, 0x7b, 0x05, 0x03, 0x04, 0x2d, 0x03, 0x66, 0x03, 0x01, 0x2f,
- 0x2e, 0x80, 0x82, 0x1d, 0x03, 0x31, 0x0f, 0x1c, 0x04, 0x24, 0x09, 0x1e,
- 0x05, 0x2b, 0x05, 0x44, 0x04, 0x0e, 0x2a, 0x80, 0xaa, 0x06, 0x24, 0x04,
- 0x24, 0x04, 0x28, 0x08, 0x34, 0x0b, 0x01, 0x80, 0x90, 0x81, 0x37, 0x09,
- 0x16, 0x0a, 0x08, 0x80, 0x98, 0x39, 0x03, 0x63, 0x08, 0x09, 0x30, 0x16,
- 0x05, 0x21, 0x03, 0x1b, 0x05, 0x01, 0x40, 0x38, 0x04, 0x4b, 0x05, 0x2f,
- 0x04, 0x0a, 0x07, 0x09, 0x07, 0x40, 0x20, 0x27, 0x04, 0x0c, 0x09, 0x36,
- 0x03, 0x3a, 0x05, 0x1a, 0x07, 0x04, 0x0c, 0x07, 0x50, 0x49, 0x37, 0x33,
- 0x0d, 0x33, 0x07, 0x2e, 0x08, 0x0a, 0x81, 0x26, 0x52, 0x4e, 0x28, 0x08,
- 0x2a, 0x56, 0x1c, 0x14, 0x17, 0x09, 0x4e, 0x04, 0x1e, 0x0f, 0x43, 0x0e,
- 0x19, 0x07, 0x0a, 0x06, 0x48, 0x08, 0x27, 0x09, 0x75, 0x0b, 0x3f, 0x41,
- 0x2a, 0x06, 0x3b, 0x05, 0x0a, 0x06, 0x51, 0x06, 0x01, 0x05, 0x10, 0x03,
- 0x05, 0x80, 0x8b, 0x62, 0x1e, 0x48, 0x08, 0x0a, 0x80, 0xa6, 0x5e, 0x22,
- 0x45, 0x0b, 0x0a, 0x06, 0x0d, 0x13, 0x39, 0x07, 0x0a, 0x36, 0x2c, 0x04,
- 0x10, 0x80, 0xc0, 0x3c, 0x64, 0x53, 0x0c, 0x48, 0x09, 0x0a, 0x46, 0x45,
- 0x1b, 0x48, 0x08, 0x53, 0x1d, 0x39, 0x81, 0x07, 0x46, 0x0a, 0x1d, 0x03,
- 0x47, 0x49, 0x37, 0x03, 0x0e, 0x08, 0x0a, 0x06, 0x39, 0x07, 0x0a, 0x81,
- 0x36, 0x19, 0x80, 0xb7, 0x01, 0x0f, 0x32, 0x0d, 0x83, 0x9b, 0x66, 0x75,
- 0x0b, 0x80, 0xc4, 0x8a, 0xbc, 0x84, 0x2f, 0x8f, 0xd1, 0x82, 0x47, 0xa1,
- 0xb9, 0x82, 0x39, 0x07, 0x2a, 0x04, 0x02, 0x60, 0x26, 0x0a, 0x46, 0x0a,
- 0x28, 0x05, 0x13, 0x82, 0xb0, 0x5b, 0x65, 0x4b, 0x04, 0x39, 0x07, 0x11,
- 0x40, 0x05, 0x0b, 0x02, 0x0e, 0x97, 0xf8, 0x08, 0x84, 0xd6, 0x2a, 0x09,
- 0xa2, 0xf7, 0x81, 0x1f, 0x31, 0x03, 0x11, 0x04, 0x08, 0x81, 0x8c, 0x89,
- 0x04, 0x6b, 0x05, 0x0d, 0x03, 0x09, 0x07, 0x10, 0x93, 0x60, 0x80, 0xf6,
- 0x0a, 0x73, 0x08, 0x6e, 0x17, 0x46, 0x80, 0x9a, 0x14, 0x0c, 0x57, 0x09,
- 0x19, 0x80, 0x87, 0x81, 0x47, 0x03, 0x85, 0x42, 0x0f, 0x15, 0x85, 0x50,
- 0x2b, 0x80, 0xd5, 0x2d, 0x03, 0x1a, 0x04, 0x02, 0x81, 0x70, 0x3a, 0x05,
- 0x01, 0x85, 0x00, 0x80, 0xd7, 0x29, 0x4c, 0x04, 0x0a, 0x04, 0x02, 0x83,
- 0x11, 0x44, 0x4c, 0x3d, 0x80, 0xc2, 0x3c, 0x06, 0x01, 0x04, 0x55, 0x05,
- 0x1b, 0x34, 0x02, 0x81, 0x0e, 0x2c, 0x04, 0x64, 0x0c, 0x56, 0x0a, 0x80,
- 0xae, 0x38, 0x1d, 0x0d, 0x2c, 0x04, 0x09, 0x07, 0x02, 0x0e, 0x06, 0x80,
- 0x9a, 0x83, 0xd8, 0x08, 0x0d, 0x03, 0x0d, 0x03, 0x74, 0x0c, 0x59, 0x07,
- 0x0c, 0x14, 0x0c, 0x04, 0x38, 0x08, 0x0a, 0x06, 0x28, 0x08, 0x22, 0x4e,
- 0x81, 0x54, 0x0c, 0x15, 0x03, 0x03, 0x05, 0x07, 0x09, 0x19, 0x07, 0x07,
- 0x09, 0x03, 0x0d, 0x07, 0x29, 0x80, 0xcb, 0x25, 0x0a, 0x84, 0x06,
- };
- auto lower = static_cast<uint16_t>(cp);
- if (cp < 0x10000) {
- return is_printable(lower, singletons0,
- sizeof(singletons0) / sizeof(*singletons0),
- singletons0_lower, normal0, sizeof(normal0));
- }
- if (cp < 0x20000) {
- return is_printable(lower, singletons1,
- sizeof(singletons1) / sizeof(*singletons1),
- singletons1_lower, normal1, sizeof(normal1));
- }
- if (0x2a6de <= cp && cp < 0x2a700) return false;
- if (0x2b735 <= cp && cp < 0x2b740) return false;
- if (0x2b81e <= cp && cp < 0x2b820) return false;
- if (0x2cea2 <= cp && cp < 0x2ceb0) return false;
- if (0x2ebe1 <= cp && cp < 0x2f800) return false;
- if (0x2fa1e <= cp && cp < 0x30000) return false;
- if (0x3134b <= cp && cp < 0xe0100) return false;
- if (0xe01f0 <= cp && cp < 0x110000) return false;
- return cp < 0x110000;
-}
-
-} // namespace detail
-
-FMT_END_NAMESPACE
-
-#endif // FMT_FORMAT_INL_H_
+++ /dev/null
-/*
- Formatting library for C++
-
- Copyright (c) 2012 - present, Victor Zverovich
-
- Permission is hereby granted, free of charge, to any person obtaining
- a copy of this software and associated documentation files (the
- "Software"), to deal in the Software without restriction, including
- without limitation the rights to use, copy, modify, merge, publish,
- distribute, sublicense, and/or sell copies of the Software, and to
- permit persons to whom the Software is furnished to do so, subject to
- the following conditions:
-
- The above copyright notice and this permission notice shall be
- included in all copies or substantial portions of the Software.
-
- THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
- --- Optional exception to the license ---
-
- As an exception, if, as a result of your compiling your source code, portions
- of this Software are embedded into a machine-executable object form of such
- source code, you may redistribute such embedded portions in such object form
- without including the above copyright and permission notices.
- */
-
-#ifndef FMT_FORMAT_H_
-#define FMT_FORMAT_H_
-
-#include <cmath> // std::signbit
-#include <cstdint> // uint32_t
-#include <cstring> // std::memcpy
-#include <initializer_list> // std::initializer_list
-#include <limits> // std::numeric_limits
-#include <memory> // std::uninitialized_copy
-#include <stdexcept> // std::runtime_error
-#include <system_error> // std::system_error
-
-#ifdef __cpp_lib_bit_cast
-# include <bit> // std::bit_cast
-#endif
-
-#include "core.h"
-
-#if defined __cpp_inline_variables && __cpp_inline_variables >= 201606L
-# define FMT_INLINE_VARIABLE inline
-#else
-# define FMT_INLINE_VARIABLE
-#endif
-
-#if FMT_HAS_CPP17_ATTRIBUTE(fallthrough)
-# define FMT_FALLTHROUGH [[fallthrough]]
-#elif defined(__clang__)
-# define FMT_FALLTHROUGH [[clang::fallthrough]]
-#elif FMT_GCC_VERSION >= 700 && \
- (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= 520)
-# define FMT_FALLTHROUGH [[gnu::fallthrough]]
-#else
-# define FMT_FALLTHROUGH
-#endif
-
-#ifndef FMT_DEPRECATED
-# if FMT_HAS_CPP14_ATTRIBUTE(deprecated) || FMT_MSC_VERSION >= 1900
-# define FMT_DEPRECATED [[deprecated]]
-# else
-# if (defined(__GNUC__) && !defined(__LCC__)) || defined(__clang__)
-# define FMT_DEPRECATED __attribute__((deprecated))
-# elif FMT_MSC_VERSION
-# define FMT_DEPRECATED __declspec(deprecated)
-# else
-# define FMT_DEPRECATED /* deprecated */
-# endif
-# endif
-#endif
-
-#ifndef FMT_NO_UNIQUE_ADDRESS
-# if FMT_CPLUSPLUS >= 202002L
-# if FMT_HAS_CPP_ATTRIBUTE(no_unique_address)
-# define FMT_NO_UNIQUE_ADDRESS [[no_unique_address]]
-// VS2019 v16.10 and later except clang-cl (https://reviews.llvm.org/D110485)
-# elif (FMT_MSC_VERSION >= 1929) && !FMT_CLANG_VERSION
-# define FMT_NO_UNIQUE_ADDRESS [[msvc::no_unique_address]]
-# endif
-# endif
-#endif
-#ifndef FMT_NO_UNIQUE_ADDRESS
-# define FMT_NO_UNIQUE_ADDRESS
-#endif
-
-// Visibility when compiled as a shared library/object.
-#if defined(FMT_LIB_EXPORT) || defined(FMT_SHARED)
-# define FMT_SO_VISIBILITY(value) FMT_VISIBILITY(value)
-#else
-# define FMT_SO_VISIBILITY(value)
-#endif
-
-#ifdef __has_builtin
-# define FMT_HAS_BUILTIN(x) __has_builtin(x)
-#else
-# define FMT_HAS_BUILTIN(x) 0
-#endif
-
-#if FMT_GCC_VERSION || FMT_CLANG_VERSION
-# define FMT_NOINLINE __attribute__((noinline))
-#else
-# define FMT_NOINLINE
-#endif
-
-#ifndef FMT_THROW
-# if FMT_EXCEPTIONS
-# if FMT_MSC_VERSION || defined(__NVCC__)
-FMT_BEGIN_NAMESPACE
-namespace detail {
-template <typename Exception> inline void do_throw(const Exception& x) {
- // Silence unreachable code warnings in MSVC and NVCC because these
- // are nearly impossible to fix in a generic code.
- volatile bool b = true;
- if (b) throw x;
-}
-} // namespace detail
-FMT_END_NAMESPACE
-# define FMT_THROW(x) detail::do_throw(x)
-# else
-# define FMT_THROW(x) throw x
-# endif
-# else
-# define FMT_THROW(x) \
- ::fmt::detail::assert_fail(__FILE__, __LINE__, (x).what())
-# endif
-#endif
-
-#if FMT_EXCEPTIONS
-# define FMT_TRY try
-# define FMT_CATCH(x) catch (x)
-#else
-# define FMT_TRY if (true)
-# define FMT_CATCH(x) if (false)
-#endif
-
-#ifndef FMT_MAYBE_UNUSED
-# if FMT_HAS_CPP17_ATTRIBUTE(maybe_unused)
-# define FMT_MAYBE_UNUSED [[maybe_unused]]
-# else
-# define FMT_MAYBE_UNUSED
-# endif
-#endif
-
-#ifndef FMT_USE_USER_DEFINED_LITERALS
-// EDG based compilers (Intel, NVIDIA, Elbrus, etc), GCC and MSVC support UDLs.
-//
-// GCC before 4.9 requires a space in `operator"" _a` which is invalid in later
-// compiler versions.
-# if (FMT_HAS_FEATURE(cxx_user_literals) || FMT_GCC_VERSION >= 409 || \
- FMT_MSC_VERSION >= 1900) && \
- (!defined(__EDG_VERSION__) || __EDG_VERSION__ >= /* UDL feature */ 480)
-# define FMT_USE_USER_DEFINED_LITERALS 1
-# else
-# define FMT_USE_USER_DEFINED_LITERALS 0
-# endif
-#endif
-
-// Defining FMT_REDUCE_INT_INSTANTIATIONS to 1, will reduce the number of
-// integer formatter template instantiations to just one by only using the
-// largest integer type. This results in a reduction in binary size but will
-// cause a decrease in integer formatting performance.
-#if !defined(FMT_REDUCE_INT_INSTANTIATIONS)
-# define FMT_REDUCE_INT_INSTANTIATIONS 0
-#endif
-
-// __builtin_clz is broken in clang with Microsoft CodeGen:
-// https://github.com/fmtlib/fmt/issues/519.
-#if !FMT_MSC_VERSION
-# if FMT_HAS_BUILTIN(__builtin_clz) || FMT_GCC_VERSION || FMT_ICC_VERSION
-# define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
-# endif
-# if FMT_HAS_BUILTIN(__builtin_clzll) || FMT_GCC_VERSION || FMT_ICC_VERSION
-# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
-# endif
-#endif
-
-// __builtin_ctz is broken in Intel Compiler Classic on Windows:
-// https://github.com/fmtlib/fmt/issues/2510.
-#ifndef __ICL
-# if FMT_HAS_BUILTIN(__builtin_ctz) || FMT_GCC_VERSION || FMT_ICC_VERSION || \
- defined(__NVCOMPILER)
-# define FMT_BUILTIN_CTZ(n) __builtin_ctz(n)
-# endif
-# if FMT_HAS_BUILTIN(__builtin_ctzll) || FMT_GCC_VERSION || \
- FMT_ICC_VERSION || defined(__NVCOMPILER)
-# define FMT_BUILTIN_CTZLL(n) __builtin_ctzll(n)
-# endif
-#endif
-
-#if FMT_MSC_VERSION
-# include <intrin.h> // _BitScanReverse[64], _BitScanForward[64], _umul128
-#endif
-
-// Some compilers masquerade as both MSVC and GCC-likes or otherwise support
-// __builtin_clz and __builtin_clzll, so only define FMT_BUILTIN_CLZ using the
-// MSVC intrinsics if the clz and clzll builtins are not available.
-#if FMT_MSC_VERSION && !defined(FMT_BUILTIN_CLZLL) && \
- !defined(FMT_BUILTIN_CTZLL)
-FMT_BEGIN_NAMESPACE
-namespace detail {
-// Avoid Clang with Microsoft CodeGen's -Wunknown-pragmas warning.
-# if !defined(__clang__)
-# pragma intrinsic(_BitScanForward)
-# pragma intrinsic(_BitScanReverse)
-# if defined(_WIN64)
-# pragma intrinsic(_BitScanForward64)
-# pragma intrinsic(_BitScanReverse64)
-# endif
-# endif
-
-inline auto clz(uint32_t x) -> int {
- unsigned long r = 0;
- _BitScanReverse(&r, x);
- FMT_ASSERT(x != 0, "");
- // Static analysis complains about using uninitialized data
- // "r", but the only way that can happen is if "x" is 0,
- // which the callers guarantee to not happen.
- FMT_MSC_WARNING(suppress : 6102)
- return 31 ^ static_cast<int>(r);
-}
-# define FMT_BUILTIN_CLZ(n) detail::clz(n)
-
-inline auto clzll(uint64_t x) -> int {
- unsigned long r = 0;
-# ifdef _WIN64
- _BitScanReverse64(&r, x);
-# else
- // Scan the high 32 bits.
- if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
- return 63 ^ static_cast<int>(r + 32);
- // Scan the low 32 bits.
- _BitScanReverse(&r, static_cast<uint32_t>(x));
-# endif
- FMT_ASSERT(x != 0, "");
- FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning.
- return 63 ^ static_cast<int>(r);
-}
-# define FMT_BUILTIN_CLZLL(n) detail::clzll(n)
-
-inline auto ctz(uint32_t x) -> int {
- unsigned long r = 0;
- _BitScanForward(&r, x);
- FMT_ASSERT(x != 0, "");
- FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning.
- return static_cast<int>(r);
-}
-# define FMT_BUILTIN_CTZ(n) detail::ctz(n)
-
-inline auto ctzll(uint64_t x) -> int {
- unsigned long r = 0;
- FMT_ASSERT(x != 0, "");
- FMT_MSC_WARNING(suppress : 6102) // Suppress a bogus static analysis warning.
-# ifdef _WIN64
- _BitScanForward64(&r, x);
-# else
- // Scan the low 32 bits.
- if (_BitScanForward(&r, static_cast<uint32_t>(x))) return static_cast<int>(r);
- // Scan the high 32 bits.
- _BitScanForward(&r, static_cast<uint32_t>(x >> 32));
- r += 32;
-# endif
- return static_cast<int>(r);
-}
-# define FMT_BUILTIN_CTZLL(n) detail::ctzll(n)
-} // namespace detail
-FMT_END_NAMESPACE
-#endif
-
-FMT_BEGIN_NAMESPACE
-namespace detail {
-
-FMT_CONSTEXPR inline void abort_fuzzing_if(bool condition) {
- ignore_unused(condition);
-#ifdef FMT_FUZZ
- if (condition) throw std::runtime_error("fuzzing limit reached");
-#endif
-}
-
-template <typename CharT, CharT... C> struct string_literal {
- static constexpr CharT value[sizeof...(C)] = {C...};
- constexpr operator basic_string_view<CharT>() const {
- return {value, sizeof...(C)};
- }
-};
-
-#if FMT_CPLUSPLUS < 201703L
-template <typename CharT, CharT... C>
-constexpr CharT string_literal<CharT, C...>::value[sizeof...(C)];
-#endif
-
-// Implementation of std::bit_cast for pre-C++20.
-template <typename To, typename From, FMT_ENABLE_IF(sizeof(To) == sizeof(From))>
-FMT_CONSTEXPR20 auto bit_cast(const From& from) -> To {
-#ifdef __cpp_lib_bit_cast
- if (is_constant_evaluated()) return std::bit_cast<To>(from);
-#endif
- auto to = To();
- // The cast suppresses a bogus -Wclass-memaccess on GCC.
- std::memcpy(static_cast<void*>(&to), &from, sizeof(to));
- return to;
-}
-
-inline auto is_big_endian() -> bool {
-#ifdef _WIN32
- return false;
-#elif defined(__BIG_ENDIAN__)
- return true;
-#elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__)
- return __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__;
-#else
- struct bytes {
- char data[sizeof(int)];
- };
- return bit_cast<bytes>(1).data[0] == 0;
-#endif
-}
-
-class uint128_fallback {
- private:
- uint64_t lo_, hi_;
-
- public:
- constexpr uint128_fallback(uint64_t hi, uint64_t lo) : lo_(lo), hi_(hi) {}
- constexpr uint128_fallback(uint64_t value = 0) : lo_(value), hi_(0) {}
-
- constexpr auto high() const noexcept -> uint64_t { return hi_; }
- constexpr auto low() const noexcept -> uint64_t { return lo_; }
-
- template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
- constexpr explicit operator T() const {
- return static_cast<T>(lo_);
- }
-
- friend constexpr auto operator==(const uint128_fallback& lhs,
- const uint128_fallback& rhs) -> bool {
- return lhs.hi_ == rhs.hi_ && lhs.lo_ == rhs.lo_;
- }
- friend constexpr auto operator!=(const uint128_fallback& lhs,
- const uint128_fallback& rhs) -> bool {
- return !(lhs == rhs);
- }
- friend constexpr auto operator>(const uint128_fallback& lhs,
- const uint128_fallback& rhs) -> bool {
- return lhs.hi_ != rhs.hi_ ? lhs.hi_ > rhs.hi_ : lhs.lo_ > rhs.lo_;
- }
- friend constexpr auto operator|(const uint128_fallback& lhs,
- const uint128_fallback& rhs)
- -> uint128_fallback {
- return {lhs.hi_ | rhs.hi_, lhs.lo_ | rhs.lo_};
- }
- friend constexpr auto operator&(const uint128_fallback& lhs,
- const uint128_fallback& rhs)
- -> uint128_fallback {
- return {lhs.hi_ & rhs.hi_, lhs.lo_ & rhs.lo_};
- }
- friend constexpr auto operator~(const uint128_fallback& n)
- -> uint128_fallback {
- return {~n.hi_, ~n.lo_};
- }
- friend auto operator+(const uint128_fallback& lhs,
- const uint128_fallback& rhs) -> uint128_fallback {
- auto result = uint128_fallback(lhs);
- result += rhs;
- return result;
- }
- friend auto operator*(const uint128_fallback& lhs, uint32_t rhs)
- -> uint128_fallback {
- FMT_ASSERT(lhs.hi_ == 0, "");
- uint64_t hi = (lhs.lo_ >> 32) * rhs;
- uint64_t lo = (lhs.lo_ & ~uint32_t()) * rhs;
- uint64_t new_lo = (hi << 32) + lo;
- return {(hi >> 32) + (new_lo < lo ? 1 : 0), new_lo};
- }
- friend auto operator-(const uint128_fallback& lhs, uint64_t rhs)
- -> uint128_fallback {
- return {lhs.hi_ - (lhs.lo_ < rhs ? 1 : 0), lhs.lo_ - rhs};
- }
- FMT_CONSTEXPR auto operator>>(int shift) const -> uint128_fallback {
- if (shift == 64) return {0, hi_};
- if (shift > 64) return uint128_fallback(0, hi_) >> (shift - 64);
- return {hi_ >> shift, (hi_ << (64 - shift)) | (lo_ >> shift)};
- }
- FMT_CONSTEXPR auto operator<<(int shift) const -> uint128_fallback {
- if (shift == 64) return {lo_, 0};
- if (shift > 64) return uint128_fallback(lo_, 0) << (shift - 64);
- return {hi_ << shift | (lo_ >> (64 - shift)), (lo_ << shift)};
- }
- FMT_CONSTEXPR auto operator>>=(int shift) -> uint128_fallback& {
- return *this = *this >> shift;
- }
- FMT_CONSTEXPR void operator+=(uint128_fallback n) {
- uint64_t new_lo = lo_ + n.lo_;
- uint64_t new_hi = hi_ + n.hi_ + (new_lo < lo_ ? 1 : 0);
- FMT_ASSERT(new_hi >= hi_, "");
- lo_ = new_lo;
- hi_ = new_hi;
- }
- FMT_CONSTEXPR void operator&=(uint128_fallback n) {
- lo_ &= n.lo_;
- hi_ &= n.hi_;
- }
-
- FMT_CONSTEXPR20 auto operator+=(uint64_t n) noexcept -> uint128_fallback& {
- if (is_constant_evaluated()) {
- lo_ += n;
- hi_ += (lo_ < n ? 1 : 0);
- return *this;
- }
-#if FMT_HAS_BUILTIN(__builtin_addcll) && !defined(__ibmxl__)
- unsigned long long carry;
- lo_ = __builtin_addcll(lo_, n, 0, &carry);
- hi_ += carry;
-#elif FMT_HAS_BUILTIN(__builtin_ia32_addcarryx_u64) && !defined(__ibmxl__)
- unsigned long long result;
- auto carry = __builtin_ia32_addcarryx_u64(0, lo_, n, &result);
- lo_ = result;
- hi_ += carry;
-#elif defined(_MSC_VER) && defined(_M_X64)
- auto carry = _addcarry_u64(0, lo_, n, &lo_);
- _addcarry_u64(carry, hi_, 0, &hi_);
-#else
- lo_ += n;
- hi_ += (lo_ < n ? 1 : 0);
-#endif
- return *this;
- }
-};
-
-using uint128_t = conditional_t<FMT_USE_INT128, uint128_opt, uint128_fallback>;
-
-#ifdef UINTPTR_MAX
-using uintptr_t = ::uintptr_t;
-#else
-using uintptr_t = uint128_t;
-#endif
-
-// Returns the largest possible value for type T. Same as
-// std::numeric_limits<T>::max() but shorter and not affected by the max macro.
-template <typename T> constexpr auto max_value() -> T {
- return (std::numeric_limits<T>::max)();
-}
-template <typename T> constexpr auto num_bits() -> int {
- return std::numeric_limits<T>::digits;
-}
-// std::numeric_limits<T>::digits may return 0 for 128-bit ints.
-template <> constexpr auto num_bits<int128_opt>() -> int { return 128; }
-template <> constexpr auto num_bits<uint128_t>() -> int { return 128; }
-
-// A heterogeneous bit_cast used for converting 96-bit long double to uint128_t
-// and 128-bit pointers to uint128_fallback.
-template <typename To, typename From, FMT_ENABLE_IF(sizeof(To) > sizeof(From))>
-inline auto bit_cast(const From& from) -> To {
- constexpr auto size = static_cast<int>(sizeof(From) / sizeof(unsigned));
- struct data_t {
- unsigned value[static_cast<unsigned>(size)];
- } data = bit_cast<data_t>(from);
- auto result = To();
- if (const_check(is_big_endian())) {
- for (int i = 0; i < size; ++i)
- result = (result << num_bits<unsigned>()) | data.value[i];
- } else {
- for (int i = size - 1; i >= 0; --i)
- result = (result << num_bits<unsigned>()) | data.value[i];
- }
- return result;
-}
-
-template <typename UInt>
-FMT_CONSTEXPR20 inline auto countl_zero_fallback(UInt n) -> int {
- int lz = 0;
- constexpr UInt msb_mask = static_cast<UInt>(1) << (num_bits<UInt>() - 1);
- for (; (n & msb_mask) == 0; n <<= 1) lz++;
- return lz;
-}
-
-FMT_CONSTEXPR20 inline auto countl_zero(uint32_t n) -> int {
-#ifdef FMT_BUILTIN_CLZ
- if (!is_constant_evaluated()) return FMT_BUILTIN_CLZ(n);
-#endif
- return countl_zero_fallback(n);
-}
-
-FMT_CONSTEXPR20 inline auto countl_zero(uint64_t n) -> int {
-#ifdef FMT_BUILTIN_CLZLL
- if (!is_constant_evaluated()) return FMT_BUILTIN_CLZLL(n);
-#endif
- return countl_zero_fallback(n);
-}
-
-FMT_INLINE void assume(bool condition) {
- (void)condition;
-#if FMT_HAS_BUILTIN(__builtin_assume) && !FMT_ICC_VERSION
- __builtin_assume(condition);
-#elif FMT_GCC_VERSION
- if (!condition) __builtin_unreachable();
-#endif
-}
-
-// An approximation of iterator_t for pre-C++20 systems.
-template <typename T>
-using iterator_t = decltype(std::begin(std::declval<T&>()));
-template <typename T> using sentinel_t = decltype(std::end(std::declval<T&>()));
-
-// A workaround for std::string not having mutable data() until C++17.
-template <typename Char>
-inline auto get_data(std::basic_string<Char>& s) -> Char* {
- return &s[0];
-}
-template <typename Container>
-inline auto get_data(Container& c) -> typename Container::value_type* {
- return c.data();
-}
-
-// Attempts to reserve space for n extra characters in the output range.
-// Returns a pointer to the reserved range or a reference to it.
-template <typename Container, FMT_ENABLE_IF(is_contiguous<Container>::value)>
-#if FMT_CLANG_VERSION >= 307 && !FMT_ICC_VERSION
-__attribute__((no_sanitize("undefined")))
-#endif
-inline auto
-reserve(std::back_insert_iterator<Container> it, size_t n) ->
- typename Container::value_type* {
- Container& c = get_container(it);
- size_t size = c.size();
- c.resize(size + n);
- return get_data(c) + size;
-}
-
-template <typename T>
-inline auto reserve(buffer_appender<T> it, size_t n) -> buffer_appender<T> {
- buffer<T>& buf = get_container(it);
- buf.try_reserve(buf.size() + n);
- return it;
-}
-
-template <typename Iterator>
-constexpr auto reserve(Iterator& it, size_t) -> Iterator& {
- return it;
-}
-
-template <typename OutputIt>
-using reserve_iterator =
- remove_reference_t<decltype(reserve(std::declval<OutputIt&>(), 0))>;
-
-template <typename T, typename OutputIt>
-constexpr auto to_pointer(OutputIt, size_t) -> T* {
- return nullptr;
-}
-template <typename T> auto to_pointer(buffer_appender<T> it, size_t n) -> T* {
- buffer<T>& buf = get_container(it);
- auto size = buf.size();
- if (buf.capacity() < size + n) return nullptr;
- buf.try_resize(size + n);
- return buf.data() + size;
-}
-
-template <typename Container, FMT_ENABLE_IF(is_contiguous<Container>::value)>
-inline auto base_iterator(std::back_insert_iterator<Container> it,
- typename Container::value_type*)
- -> std::back_insert_iterator<Container> {
- return it;
-}
-
-template <typename Iterator>
-constexpr auto base_iterator(Iterator, Iterator it) -> Iterator {
- return it;
-}
-
-// <algorithm> is spectacularly slow to compile in C++20 so use a simple fill_n
-// instead (#1998).
-template <typename OutputIt, typename Size, typename T>
-FMT_CONSTEXPR auto fill_n(OutputIt out, Size count, const T& value)
- -> OutputIt {
- for (Size i = 0; i < count; ++i) *out++ = value;
- return out;
-}
-template <typename T, typename Size>
-FMT_CONSTEXPR20 auto fill_n(T* out, Size count, char value) -> T* {
- if (is_constant_evaluated()) {
- return fill_n<T*, Size, T>(out, count, value);
- }
- std::memset(out, value, to_unsigned(count));
- return out + count;
-}
-
-#ifdef __cpp_char8_t
-using char8_type = char8_t;
-#else
-enum char8_type : unsigned char {};
-#endif
-
-template <typename OutChar, typename InputIt, typename OutputIt>
-FMT_CONSTEXPR FMT_NOINLINE auto copy_str_noinline(InputIt begin, InputIt end,
- OutputIt out) -> OutputIt {
- return copy_str<OutChar>(begin, end, out);
-}
-
-// A public domain branchless UTF-8 decoder by Christopher Wellons:
-// https://github.com/skeeto/branchless-utf8
-/* Decode the next character, c, from s, reporting errors in e.
- *
- * Since this is a branchless decoder, four bytes will be read from the
- * buffer regardless of the actual length of the next character. This
- * means the buffer _must_ have at least three bytes of zero padding
- * following the end of the data stream.
- *
- * Errors are reported in e, which will be non-zero if the parsed
- * character was somehow invalid: invalid byte sequence, non-canonical
- * encoding, or a surrogate half.
- *
- * The function returns a pointer to the next character. When an error
- * occurs, this pointer will be a guess that depends on the particular
- * error, but it will always advance at least one byte.
- */
-FMT_CONSTEXPR inline auto utf8_decode(const char* s, uint32_t* c, int* e)
- -> const char* {
- constexpr const int masks[] = {0x00, 0x7f, 0x1f, 0x0f, 0x07};
- constexpr const uint32_t mins[] = {4194304, 0, 128, 2048, 65536};
- constexpr const int shiftc[] = {0, 18, 12, 6, 0};
- constexpr const int shifte[] = {0, 6, 4, 2, 0};
-
- int len = "\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\0\0\0\0\0\0\0\0\2\2\2\2\3\3\4"
- [static_cast<unsigned char>(*s) >> 3];
- // Compute the pointer to the next character early so that the next
- // iteration can start working on the next character. Neither Clang
- // nor GCC figure out this reordering on their own.
- const char* next = s + len + !len;
-
- using uchar = unsigned char;
-
- // Assume a four-byte character and load four bytes. Unused bits are
- // shifted out.
- *c = uint32_t(uchar(s[0]) & masks[len]) << 18;
- *c |= uint32_t(uchar(s[1]) & 0x3f) << 12;
- *c |= uint32_t(uchar(s[2]) & 0x3f) << 6;
- *c |= uint32_t(uchar(s[3]) & 0x3f) << 0;
- *c >>= shiftc[len];
-
- // Accumulate the various error conditions.
- *e = (*c < mins[len]) << 6; // non-canonical encoding
- *e |= ((*c >> 11) == 0x1b) << 7; // surrogate half?
- *e |= (*c > 0x10FFFF) << 8; // out of range?
- *e |= (uchar(s[1]) & 0xc0) >> 2;
- *e |= (uchar(s[2]) & 0xc0) >> 4;
- *e |= uchar(s[3]) >> 6;
- *e ^= 0x2a; // top two bits of each tail byte correct?
- *e >>= shifte[len];
-
- return next;
-}
-
-constexpr FMT_INLINE_VARIABLE uint32_t invalid_code_point = ~uint32_t();
-
-// Invokes f(cp, sv) for every code point cp in s with sv being the string view
-// corresponding to the code point. cp is invalid_code_point on error.
-template <typename F>
-FMT_CONSTEXPR void for_each_codepoint(string_view s, F f) {
- auto decode = [f](const char* buf_ptr, const char* ptr) {
- auto cp = uint32_t();
- auto error = 0;
- auto end = utf8_decode(buf_ptr, &cp, &error);
- bool result = f(error ? invalid_code_point : cp,
- string_view(ptr, error ? 1 : to_unsigned(end - buf_ptr)));
- return result ? (error ? buf_ptr + 1 : end) : nullptr;
- };
- auto p = s.data();
- const size_t block_size = 4; // utf8_decode always reads blocks of 4 chars.
- if (s.size() >= block_size) {
- for (auto end = p + s.size() - block_size + 1; p < end;) {
- p = decode(p, p);
- if (!p) return;
- }
- }
- if (auto num_chars_left = s.data() + s.size() - p) {
- char buf[2 * block_size - 1] = {};
- copy_str<char>(p, p + num_chars_left, buf);
- const char* buf_ptr = buf;
- do {
- auto end = decode(buf_ptr, p);
- if (!end) return;
- p += end - buf_ptr;
- buf_ptr = end;
- } while (buf_ptr - buf < num_chars_left);
- }
-}
-
-template <typename Char>
-inline auto compute_width(basic_string_view<Char> s) -> size_t {
- return s.size();
-}
-
-// Computes approximate display width of a UTF-8 string.
-FMT_CONSTEXPR inline auto compute_width(string_view s) -> size_t {
- size_t num_code_points = 0;
- // It is not a lambda for compatibility with C++14.
- struct count_code_points {
- size_t* count;
- FMT_CONSTEXPR auto operator()(uint32_t cp, string_view) const -> bool {
- *count += detail::to_unsigned(
- 1 +
- (cp >= 0x1100 &&
- (cp <= 0x115f || // Hangul Jamo init. consonants
- cp == 0x2329 || // LEFT-POINTING ANGLE BRACKET
- cp == 0x232a || // RIGHT-POINTING ANGLE BRACKET
- // CJK ... Yi except IDEOGRAPHIC HALF FILL SPACE:
- (cp >= 0x2e80 && cp <= 0xa4cf && cp != 0x303f) ||
- (cp >= 0xac00 && cp <= 0xd7a3) || // Hangul Syllables
- (cp >= 0xf900 && cp <= 0xfaff) || // CJK Compatibility Ideographs
- (cp >= 0xfe10 && cp <= 0xfe19) || // Vertical Forms
- (cp >= 0xfe30 && cp <= 0xfe6f) || // CJK Compatibility Forms
- (cp >= 0xff00 && cp <= 0xff60) || // Fullwidth Forms
- (cp >= 0xffe0 && cp <= 0xffe6) || // Fullwidth Forms
- (cp >= 0x20000 && cp <= 0x2fffd) || // CJK
- (cp >= 0x30000 && cp <= 0x3fffd) ||
- // Miscellaneous Symbols and Pictographs + Emoticons:
- (cp >= 0x1f300 && cp <= 0x1f64f) ||
- // Supplemental Symbols and Pictographs:
- (cp >= 0x1f900 && cp <= 0x1f9ff))));
- return true;
- }
- };
- // We could avoid branches by using utf8_decode directly.
- for_each_codepoint(s, count_code_points{&num_code_points});
- return num_code_points;
-}
-
-inline auto compute_width(basic_string_view<char8_type> s) -> size_t {
- return compute_width(
- string_view(reinterpret_cast<const char*>(s.data()), s.size()));
-}
-
-template <typename Char>
-inline auto code_point_index(basic_string_view<Char> s, size_t n) -> size_t {
- size_t size = s.size();
- return n < size ? n : size;
-}
-
-// Calculates the index of the nth code point in a UTF-8 string.
-inline auto code_point_index(string_view s, size_t n) -> size_t {
- size_t result = s.size();
- const char* begin = s.begin();
- for_each_codepoint(s, [begin, &n, &result](uint32_t, string_view sv) {
- if (n != 0) {
- --n;
- return true;
- }
- result = to_unsigned(sv.begin() - begin);
- return false;
- });
- return result;
-}
-
-inline auto code_point_index(basic_string_view<char8_type> s, size_t n)
- -> size_t {
- return code_point_index(
- string_view(reinterpret_cast<const char*>(s.data()), s.size()), n);
-}
-
-template <typename T> struct is_integral : std::is_integral<T> {};
-template <> struct is_integral<int128_opt> : std::true_type {};
-template <> struct is_integral<uint128_t> : std::true_type {};
-
-template <typename T>
-using is_signed =
- std::integral_constant<bool, std::numeric_limits<T>::is_signed ||
- std::is_same<T, int128_opt>::value>;
-
-template <typename T>
-using is_integer =
- bool_constant<is_integral<T>::value && !std::is_same<T, bool>::value &&
- !std::is_same<T, char>::value &&
- !std::is_same<T, wchar_t>::value>;
-
-#ifndef FMT_USE_FLOAT
-# define FMT_USE_FLOAT 1
-#endif
-#ifndef FMT_USE_DOUBLE
-# define FMT_USE_DOUBLE 1
-#endif
-#ifndef FMT_USE_LONG_DOUBLE
-# define FMT_USE_LONG_DOUBLE 1
-#endif
-
-#ifndef FMT_USE_FLOAT128
-# ifdef __clang__
-// Clang emulates GCC, so it has to appear early.
-# if FMT_HAS_INCLUDE(<quadmath.h>)
-# define FMT_USE_FLOAT128 1
-# endif
-# elif defined(__GNUC__)
-// GNU C++:
-# if defined(_GLIBCXX_USE_FLOAT128) && !defined(__STRICT_ANSI__)
-# define FMT_USE_FLOAT128 1
-# endif
-# endif
-# ifndef FMT_USE_FLOAT128
-# define FMT_USE_FLOAT128 0
-# endif
-#endif
-
-#if FMT_USE_FLOAT128
-using float128 = __float128;
-#else
-using float128 = void;
-#endif
-template <typename T> using is_float128 = std::is_same<T, float128>;
-
-template <typename T>
-using is_floating_point =
- bool_constant<std::is_floating_point<T>::value || is_float128<T>::value>;
-
-template <typename T, bool = std::is_floating_point<T>::value>
-struct is_fast_float : bool_constant<std::numeric_limits<T>::is_iec559 &&
- sizeof(T) <= sizeof(double)> {};
-template <typename T> struct is_fast_float<T, false> : std::false_type {};
-
-template <typename T>
-using is_double_double = bool_constant<std::numeric_limits<T>::digits == 106>;
-
-#ifndef FMT_USE_FULL_CACHE_DRAGONBOX
-# define FMT_USE_FULL_CACHE_DRAGONBOX 0
-#endif
-
-template <typename T>
-template <typename U>
-void buffer<T>::append(const U* begin, const U* end) {
- while (begin != end) {
- auto count = to_unsigned(end - begin);
- try_reserve(size_ + count);
- auto free_cap = capacity_ - size_;
- if (free_cap < count) count = free_cap;
- std::uninitialized_copy_n(begin, count, ptr_ + size_);
- size_ += count;
- begin += count;
- }
-}
-
-template <typename T, typename Enable = void>
-struct is_locale : std::false_type {};
-template <typename T>
-struct is_locale<T, void_t<decltype(T::classic())>> : std::true_type {};
-} // namespace detail
-
-FMT_BEGIN_EXPORT
-
-// The number of characters to store in the basic_memory_buffer object itself
-// to avoid dynamic memory allocation.
-enum { inline_buffer_size = 500 };
-
-/**
- \rst
- A dynamically growing memory buffer for trivially copyable/constructible types
- with the first ``SIZE`` elements stored in the object itself.
-
- You can use the ``memory_buffer`` type alias for ``char`` instead.
-
- **Example**::
-
- auto out = fmt::memory_buffer();
- fmt::format_to(std::back_inserter(out), "The answer is {}.", 42);
-
- This will append the following output to the ``out`` object:
-
- .. code-block:: none
-
- The answer is 42.
-
- The output can be converted to an ``std::string`` with ``to_string(out)``.
- \endrst
- */
-template <typename T, size_t SIZE = inline_buffer_size,
- typename Allocator = std::allocator<T>>
-class basic_memory_buffer final : public detail::buffer<T> {
- private:
- T store_[SIZE];
-
- // Don't inherit from Allocator to avoid generating type_info for it.
- FMT_NO_UNIQUE_ADDRESS Allocator alloc_;
-
- // Deallocate memory allocated by the buffer.
- FMT_CONSTEXPR20 void deallocate() {
- T* data = this->data();
- if (data != store_) alloc_.deallocate(data, this->capacity());
- }
-
- protected:
- FMT_CONSTEXPR20 void grow(size_t size) override {
- detail::abort_fuzzing_if(size > 5000);
- const size_t max_size = std::allocator_traits<Allocator>::max_size(alloc_);
- size_t old_capacity = this->capacity();
- size_t new_capacity = old_capacity + old_capacity / 2;
- if (size > new_capacity)
- new_capacity = size;
- else if (new_capacity > max_size)
- new_capacity = size > max_size ? size : max_size;
- T* old_data = this->data();
- T* new_data =
- std::allocator_traits<Allocator>::allocate(alloc_, new_capacity);
- // Suppress a bogus -Wstringop-overflow in gcc 13.1 (#3481).
- detail::assume(this->size() <= new_capacity);
- // The following code doesn't throw, so the raw pointer above doesn't leak.
- std::uninitialized_copy_n(old_data, this->size(), new_data);
- this->set(new_data, new_capacity);
- // deallocate must not throw according to the standard, but even if it does,
- // the buffer already uses the new storage and will deallocate it in
- // destructor.
- if (old_data != store_) alloc_.deallocate(old_data, old_capacity);
- }
-
- public:
- using value_type = T;
- using const_reference = const T&;
-
- FMT_CONSTEXPR20 explicit basic_memory_buffer(
- const Allocator& alloc = Allocator())
- : alloc_(alloc) {
- this->set(store_, SIZE);
- if (detail::is_constant_evaluated()) detail::fill_n(store_, SIZE, T());
- }
- FMT_CONSTEXPR20 ~basic_memory_buffer() { deallocate(); }
-
- private:
- // Move data from other to this buffer.
- FMT_CONSTEXPR20 void move(basic_memory_buffer& other) {
- alloc_ = std::move(other.alloc_);
- T* data = other.data();
- size_t size = other.size(), capacity = other.capacity();
- if (data == other.store_) {
- this->set(store_, capacity);
- detail::copy_str<T>(other.store_, other.store_ + size, store_);
- } else {
- this->set(data, capacity);
- // Set pointer to the inline array so that delete is not called
- // when deallocating.
- other.set(other.store_, 0);
- other.clear();
- }
- this->resize(size);
- }
-
- public:
- /**
- \rst
- Constructs a :class:`fmt::basic_memory_buffer` object moving the content
- of the other object to it.
- \endrst
- */
- FMT_CONSTEXPR20 basic_memory_buffer(basic_memory_buffer&& other) noexcept {
- move(other);
- }
-
- /**
- \rst
- Moves the content of the other ``basic_memory_buffer`` object to this one.
- \endrst
- */
- auto operator=(basic_memory_buffer&& other) noexcept -> basic_memory_buffer& {
- FMT_ASSERT(this != &other, "");
- deallocate();
- move(other);
- return *this;
- }
-
- // Returns a copy of the allocator associated with this buffer.
- auto get_allocator() const -> Allocator { return alloc_; }
-
- /**
- Resizes the buffer to contain *count* elements. If T is a POD type new
- elements may not be initialized.
- */
- FMT_CONSTEXPR20 void resize(size_t count) { this->try_resize(count); }
-
- /** Increases the buffer capacity to *new_capacity*. */
- void reserve(size_t new_capacity) { this->try_reserve(new_capacity); }
-
- using detail::buffer<T>::append;
- template <typename ContiguousRange>
- void append(const ContiguousRange& range) {
- append(range.data(), range.data() + range.size());
- }
-};
-
-using memory_buffer = basic_memory_buffer<char>;
-
-template <typename T, size_t SIZE, typename Allocator>
-struct is_contiguous<basic_memory_buffer<T, SIZE, Allocator>> : std::true_type {
-};
-
-FMT_END_EXPORT
-namespace detail {
-FMT_API auto write_console(int fd, string_view text) -> bool;
-FMT_API auto write_console(std::FILE* f, string_view text) -> bool;
-FMT_API void print(std::FILE*, string_view);
-} // namespace detail
-
-FMT_BEGIN_EXPORT
-
-// Suppress a misleading warning in older versions of clang.
-#if FMT_CLANG_VERSION
-# pragma clang diagnostic ignored "-Wweak-vtables"
-#endif
-
-/** An error reported from a formatting function. */
-class FMT_SO_VISIBILITY("default") format_error : public std::runtime_error {
- public:
- using std::runtime_error::runtime_error;
-};
-
-namespace detail_exported {
-#if FMT_USE_NONTYPE_TEMPLATE_ARGS
-template <typename Char, size_t N> struct fixed_string {
- constexpr fixed_string(const Char (&str)[N]) {
- detail::copy_str<Char, const Char*, Char*>(static_cast<const Char*>(str),
- str + N, data);
- }
- Char data[N] = {};
-};
-#endif
-
-// Converts a compile-time string to basic_string_view.
-template <typename Char, size_t N>
-constexpr auto compile_string_to_view(const Char (&s)[N])
- -> basic_string_view<Char> {
- // Remove trailing NUL character if needed. Won't be present if this is used
- // with a raw character array (i.e. not defined as a string).
- return {s, N - (std::char_traits<Char>::to_int_type(s[N - 1]) == 0 ? 1 : 0)};
-}
-template <typename Char>
-constexpr auto compile_string_to_view(detail::std_string_view<Char> s)
- -> basic_string_view<Char> {
- return {s.data(), s.size()};
-}
-} // namespace detail_exported
-
-class loc_value {
- private:
- basic_format_arg<format_context> value_;
-
- public:
- template <typename T, FMT_ENABLE_IF(!detail::is_float128<T>::value)>
- loc_value(T value) : value_(detail::make_arg<format_context>(value)) {}
-
- template <typename T, FMT_ENABLE_IF(detail::is_float128<T>::value)>
- loc_value(T) {}
-
- template <typename Visitor> auto visit(Visitor&& vis) -> decltype(vis(0)) {
- return visit_format_arg(vis, value_);
- }
-};
-
-// A locale facet that formats values in UTF-8.
-// It is parameterized on the locale to avoid the heavy <locale> include.
-template <typename Locale> class format_facet : public Locale::facet {
- private:
- std::string separator_;
- std::string grouping_;
- std::string decimal_point_;
-
- protected:
- virtual auto do_put(appender out, loc_value val,
- const format_specs<>& specs) const -> bool;
-
- public:
- static FMT_API typename Locale::id id;
-
- explicit format_facet(Locale& loc);
- explicit format_facet(string_view sep = "",
- std::initializer_list<unsigned char> g = {3},
- std::string decimal_point = ".")
- : separator_(sep.data(), sep.size()),
- grouping_(g.begin(), g.end()),
- decimal_point_(decimal_point) {}
-
- auto put(appender out, loc_value val, const format_specs<>& specs) const
- -> bool {
- return do_put(out, val, specs);
- }
-};
-
-namespace detail {
-
-// Returns true if value is negative, false otherwise.
-// Same as `value < 0` but doesn't produce warnings if T is an unsigned type.
-template <typename T, FMT_ENABLE_IF(is_signed<T>::value)>
-constexpr auto is_negative(T value) -> bool {
- return value < 0;
-}
-template <typename T, FMT_ENABLE_IF(!is_signed<T>::value)>
-constexpr auto is_negative(T) -> bool {
- return false;
-}
-
-template <typename T>
-FMT_CONSTEXPR auto is_supported_floating_point(T) -> bool {
- if (std::is_same<T, float>()) return FMT_USE_FLOAT;
- if (std::is_same<T, double>()) return FMT_USE_DOUBLE;
- if (std::is_same<T, long double>()) return FMT_USE_LONG_DOUBLE;
- return true;
-}
-
-// Smallest of uint32_t, uint64_t, uint128_t that is large enough to
-// represent all values of an integral type T.
-template <typename T>
-using uint32_or_64_or_128_t =
- conditional_t<num_bits<T>() <= 32 && !FMT_REDUCE_INT_INSTANTIATIONS,
- uint32_t,
- conditional_t<num_bits<T>() <= 64, uint64_t, uint128_t>>;
-template <typename T>
-using uint64_or_128_t = conditional_t<num_bits<T>() <= 64, uint64_t, uint128_t>;
-
-#define FMT_POWERS_OF_10(factor) \
- factor * 10, (factor) * 100, (factor) * 1000, (factor) * 10000, \
- (factor) * 100000, (factor) * 1000000, (factor) * 10000000, \
- (factor) * 100000000, (factor) * 1000000000
-
-// Converts value in the range [0, 100) to a string.
-constexpr auto digits2(size_t value) -> const char* {
- // GCC generates slightly better code when value is pointer-size.
- return &"0001020304050607080910111213141516171819"
- "2021222324252627282930313233343536373839"
- "4041424344454647484950515253545556575859"
- "6061626364656667686970717273747576777879"
- "8081828384858687888990919293949596979899"[value * 2];
-}
-
-// Sign is a template parameter to workaround a bug in gcc 4.8.
-template <typename Char, typename Sign> constexpr auto sign(Sign s) -> Char {
-#if !FMT_GCC_VERSION || FMT_GCC_VERSION >= 604
- static_assert(std::is_same<Sign, sign_t>::value, "");
-#endif
- return static_cast<Char>("\0-+ "[s]);
-}
-
-template <typename T> FMT_CONSTEXPR auto count_digits_fallback(T n) -> int {
- int count = 1;
- for (;;) {
- // Integer division is slow so do it for a group of four digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- if (n < 10) return count;
- if (n < 100) return count + 1;
- if (n < 1000) return count + 2;
- if (n < 10000) return count + 3;
- n /= 10000u;
- count += 4;
- }
-}
-#if FMT_USE_INT128
-FMT_CONSTEXPR inline auto count_digits(uint128_opt n) -> int {
- return count_digits_fallback(n);
-}
-#endif
-
-#ifdef FMT_BUILTIN_CLZLL
-// It is a separate function rather than a part of count_digits to workaround
-// the lack of static constexpr in constexpr functions.
-inline auto do_count_digits(uint64_t n) -> int {
- // This has comparable performance to the version by Kendall Willets
- // (https://github.com/fmtlib/format-benchmark/blob/master/digits10)
- // but uses smaller tables.
- // Maps bsr(n) to ceil(log10(pow(2, bsr(n) + 1) - 1)).
- static constexpr uint8_t bsr2log10[] = {
- 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5,
- 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10, 10,
- 10, 11, 11, 11, 12, 12, 12, 13, 13, 13, 13, 14, 14, 14, 15, 15,
- 15, 16, 16, 16, 16, 17, 17, 17, 18, 18, 18, 19, 19, 19, 19, 20};
- auto t = bsr2log10[FMT_BUILTIN_CLZLL(n | 1) ^ 63];
- static constexpr const uint64_t zero_or_powers_of_10[] = {
- 0, 0, FMT_POWERS_OF_10(1U), FMT_POWERS_OF_10(1000000000ULL),
- 10000000000000000000ULL};
- return t - (n < zero_or_powers_of_10[t]);
-}
-#endif
-
-// Returns the number of decimal digits in n. Leading zeros are not counted
-// except for n == 0 in which case count_digits returns 1.
-FMT_CONSTEXPR20 inline auto count_digits(uint64_t n) -> int {
-#ifdef FMT_BUILTIN_CLZLL
- if (!is_constant_evaluated()) {
- return do_count_digits(n);
- }
-#endif
- return count_digits_fallback(n);
-}
-
-// Counts the number of digits in n. BITS = log2(radix).
-template <int BITS, typename UInt>
-FMT_CONSTEXPR auto count_digits(UInt n) -> int {
-#ifdef FMT_BUILTIN_CLZ
- if (!is_constant_evaluated() && num_bits<UInt>() == 32)
- return (FMT_BUILTIN_CLZ(static_cast<uint32_t>(n) | 1) ^ 31) / BITS + 1;
-#endif
- // Lambda avoids unreachable code warnings from NVHPC.
- return [](UInt m) {
- int num_digits = 0;
- do {
- ++num_digits;
- } while ((m >>= BITS) != 0);
- return num_digits;
- }(n);
-}
-
-#ifdef FMT_BUILTIN_CLZ
-// It is a separate function rather than a part of count_digits to workaround
-// the lack of static constexpr in constexpr functions.
-FMT_INLINE auto do_count_digits(uint32_t n) -> int {
-// An optimization by Kendall Willets from https://bit.ly/3uOIQrB.
-// This increments the upper 32 bits (log10(T) - 1) when >= T is added.
-# define FMT_INC(T) (((sizeof(#T) - 1ull) << 32) - T)
- static constexpr uint64_t table[] = {
- FMT_INC(0), FMT_INC(0), FMT_INC(0), // 8
- FMT_INC(10), FMT_INC(10), FMT_INC(10), // 64
- FMT_INC(100), FMT_INC(100), FMT_INC(100), // 512
- FMT_INC(1000), FMT_INC(1000), FMT_INC(1000), // 4096
- FMT_INC(10000), FMT_INC(10000), FMT_INC(10000), // 32k
- FMT_INC(100000), FMT_INC(100000), FMT_INC(100000), // 256k
- FMT_INC(1000000), FMT_INC(1000000), FMT_INC(1000000), // 2048k
- FMT_INC(10000000), FMT_INC(10000000), FMT_INC(10000000), // 16M
- FMT_INC(100000000), FMT_INC(100000000), FMT_INC(100000000), // 128M
- FMT_INC(1000000000), FMT_INC(1000000000), FMT_INC(1000000000), // 1024M
- FMT_INC(1000000000), FMT_INC(1000000000) // 4B
- };
- auto inc = table[FMT_BUILTIN_CLZ(n | 1) ^ 31];
- return static_cast<int>((n + inc) >> 32);
-}
-#endif
-
-// Optional version of count_digits for better performance on 32-bit platforms.
-FMT_CONSTEXPR20 inline auto count_digits(uint32_t n) -> int {
-#ifdef FMT_BUILTIN_CLZ
- if (!is_constant_evaluated()) {
- return do_count_digits(n);
- }
-#endif
- return count_digits_fallback(n);
-}
-
-template <typename Int> constexpr auto digits10() noexcept -> int {
- return std::numeric_limits<Int>::digits10;
-}
-template <> constexpr auto digits10<int128_opt>() noexcept -> int { return 38; }
-template <> constexpr auto digits10<uint128_t>() noexcept -> int { return 38; }
-
-template <typename Char> struct thousands_sep_result {
- std::string grouping;
- Char thousands_sep;
-};
-
-template <typename Char>
-FMT_API auto thousands_sep_impl(locale_ref loc) -> thousands_sep_result<Char>;
-template <typename Char>
-inline auto thousands_sep(locale_ref loc) -> thousands_sep_result<Char> {
- auto result = thousands_sep_impl<char>(loc);
- return {result.grouping, Char(result.thousands_sep)};
-}
-template <>
-inline auto thousands_sep(locale_ref loc) -> thousands_sep_result<wchar_t> {
- return thousands_sep_impl<wchar_t>(loc);
-}
-
-template <typename Char>
-FMT_API auto decimal_point_impl(locale_ref loc) -> Char;
-template <typename Char> inline auto decimal_point(locale_ref loc) -> Char {
- return Char(decimal_point_impl<char>(loc));
-}
-template <> inline auto decimal_point(locale_ref loc) -> wchar_t {
- return decimal_point_impl<wchar_t>(loc);
-}
-
-// Compares two characters for equality.
-template <typename Char> auto equal2(const Char* lhs, const char* rhs) -> bool {
- return lhs[0] == Char(rhs[0]) && lhs[1] == Char(rhs[1]);
-}
-inline auto equal2(const char* lhs, const char* rhs) -> bool {
- return memcmp(lhs, rhs, 2) == 0;
-}
-
-// Copies two characters from src to dst.
-template <typename Char>
-FMT_CONSTEXPR20 FMT_INLINE void copy2(Char* dst, const char* src) {
- if (!is_constant_evaluated() && sizeof(Char) == sizeof(char)) {
- memcpy(dst, src, 2);
- return;
- }
- *dst++ = static_cast<Char>(*src++);
- *dst = static_cast<Char>(*src);
-}
-
-template <typename Iterator> struct format_decimal_result {
- Iterator begin;
- Iterator end;
-};
-
-// Formats a decimal unsigned integer value writing into out pointing to a
-// buffer of specified size. The caller must ensure that the buffer is large
-// enough.
-template <typename Char, typename UInt>
-FMT_CONSTEXPR20 auto format_decimal(Char* out, UInt value, int size)
- -> format_decimal_result<Char*> {
- FMT_ASSERT(size >= count_digits(value), "invalid digit count");
- out += size;
- Char* end = out;
- while (value >= 100) {
- // Integer division is slow so do it for a group of two digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- out -= 2;
- copy2(out, digits2(static_cast<size_t>(value % 100)));
- value /= 100;
- }
- if (value < 10) {
- *--out = static_cast<Char>('0' + value);
- return {out, end};
- }
- out -= 2;
- copy2(out, digits2(static_cast<size_t>(value)));
- return {out, end};
-}
-
-template <typename Char, typename UInt, typename Iterator,
- FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<Iterator>>::value)>
-FMT_CONSTEXPR inline auto format_decimal(Iterator out, UInt value, int size)
- -> format_decimal_result<Iterator> {
- // Buffer is large enough to hold all digits (digits10 + 1).
- Char buffer[digits10<UInt>() + 1] = {};
- auto end = format_decimal(buffer, value, size).end;
- return {out, detail::copy_str_noinline<Char>(buffer, end, out)};
-}
-
-template <unsigned BASE_BITS, typename Char, typename UInt>
-FMT_CONSTEXPR auto format_uint(Char* buffer, UInt value, int num_digits,
- bool upper = false) -> Char* {
- buffer += num_digits;
- Char* end = buffer;
- do {
- const char* digits = upper ? "0123456789ABCDEF" : "0123456789abcdef";
- unsigned digit = static_cast<unsigned>(value & ((1 << BASE_BITS) - 1));
- *--buffer = static_cast<Char>(BASE_BITS < 4 ? static_cast<char>('0' + digit)
- : digits[digit]);
- } while ((value >>= BASE_BITS) != 0);
- return end;
-}
-
-template <unsigned BASE_BITS, typename Char, typename It, typename UInt>
-FMT_CONSTEXPR inline auto format_uint(It out, UInt value, int num_digits,
- bool upper = false) -> It {
- if (auto ptr = to_pointer<Char>(out, to_unsigned(num_digits))) {
- format_uint<BASE_BITS>(ptr, value, num_digits, upper);
- return out;
- }
- // Buffer should be large enough to hold all digits (digits / BASE_BITS + 1).
- char buffer[num_bits<UInt>() / BASE_BITS + 1] = {};
- format_uint<BASE_BITS>(buffer, value, num_digits, upper);
- return detail::copy_str_noinline<Char>(buffer, buffer + num_digits, out);
-}
-
-// A converter from UTF-8 to UTF-16.
-class utf8_to_utf16 {
- private:
- basic_memory_buffer<wchar_t> buffer_;
-
- public:
- FMT_API explicit utf8_to_utf16(string_view s);
- operator basic_string_view<wchar_t>() const { return {&buffer_[0], size()}; }
- auto size() const -> size_t { return buffer_.size() - 1; }
- auto c_str() const -> const wchar_t* { return &buffer_[0]; }
- auto str() const -> std::wstring { return {&buffer_[0], size()}; }
-};
-
-enum class to_utf8_error_policy { abort, replace };
-
-// A converter from UTF-16/UTF-32 (host endian) to UTF-8.
-template <typename WChar, typename Buffer = memory_buffer> class to_utf8 {
- private:
- Buffer buffer_;
-
- public:
- to_utf8() {}
- explicit to_utf8(basic_string_view<WChar> s,
- to_utf8_error_policy policy = to_utf8_error_policy::abort) {
- static_assert(sizeof(WChar) == 2 || sizeof(WChar) == 4,
- "Expect utf16 or utf32");
- if (!convert(s, policy))
- FMT_THROW(std::runtime_error(sizeof(WChar) == 2 ? "invalid utf16"
- : "invalid utf32"));
- }
- operator string_view() const { return string_view(&buffer_[0], size()); }
- auto size() const -> size_t { return buffer_.size() - 1; }
- auto c_str() const -> const char* { return &buffer_[0]; }
- auto str() const -> std::string { return std::string(&buffer_[0], size()); }
-
- // Performs conversion returning a bool instead of throwing exception on
- // conversion error. This method may still throw in case of memory allocation
- // error.
- auto convert(basic_string_view<WChar> s,
- to_utf8_error_policy policy = to_utf8_error_policy::abort)
- -> bool {
- if (!convert(buffer_, s, policy)) return false;
- buffer_.push_back(0);
- return true;
- }
- static auto convert(Buffer& buf, basic_string_view<WChar> s,
- to_utf8_error_policy policy = to_utf8_error_policy::abort)
- -> bool {
- for (auto p = s.begin(); p != s.end(); ++p) {
- uint32_t c = static_cast<uint32_t>(*p);
- if (sizeof(WChar) == 2 && c >= 0xd800 && c <= 0xdfff) {
- // Handle a surrogate pair.
- ++p;
- if (p == s.end() || (c & 0xfc00) != 0xd800 || (*p & 0xfc00) != 0xdc00) {
- if (policy == to_utf8_error_policy::abort) return false;
- buf.append(string_view("\xEF\xBF\xBD"));
- --p;
- } else {
- c = (c << 10) + static_cast<uint32_t>(*p) - 0x35fdc00;
- }
- } else if (c < 0x80) {
- buf.push_back(static_cast<char>(c));
- } else if (c < 0x800) {
- buf.push_back(static_cast<char>(0xc0 | (c >> 6)));
- buf.push_back(static_cast<char>(0x80 | (c & 0x3f)));
- } else if ((c >= 0x800 && c <= 0xd7ff) || (c >= 0xe000 && c <= 0xffff)) {
- buf.push_back(static_cast<char>(0xe0 | (c >> 12)));
- buf.push_back(static_cast<char>(0x80 | ((c & 0xfff) >> 6)));
- buf.push_back(static_cast<char>(0x80 | (c & 0x3f)));
- } else if (c >= 0x10000 && c <= 0x10ffff) {
- buf.push_back(static_cast<char>(0xf0 | (c >> 18)));
- buf.push_back(static_cast<char>(0x80 | ((c & 0x3ffff) >> 12)));
- buf.push_back(static_cast<char>(0x80 | ((c & 0xfff) >> 6)));
- buf.push_back(static_cast<char>(0x80 | (c & 0x3f)));
- } else {
- return false;
- }
- }
- return true;
- }
-};
-
-// Computes 128-bit result of multiplication of two 64-bit unsigned integers.
-inline auto umul128(uint64_t x, uint64_t y) noexcept -> uint128_fallback {
-#if FMT_USE_INT128
- auto p = static_cast<uint128_opt>(x) * static_cast<uint128_opt>(y);
- return {static_cast<uint64_t>(p >> 64), static_cast<uint64_t>(p)};
-#elif defined(_MSC_VER) && defined(_M_X64)
- auto hi = uint64_t();
- auto lo = _umul128(x, y, &hi);
- return {hi, lo};
-#else
- const uint64_t mask = static_cast<uint64_t>(max_value<uint32_t>());
-
- uint64_t a = x >> 32;
- uint64_t b = x & mask;
- uint64_t c = y >> 32;
- uint64_t d = y & mask;
-
- uint64_t ac = a * c;
- uint64_t bc = b * c;
- uint64_t ad = a * d;
- uint64_t bd = b * d;
-
- uint64_t intermediate = (bd >> 32) + (ad & mask) + (bc & mask);
-
- return {ac + (intermediate >> 32) + (ad >> 32) + (bc >> 32),
- (intermediate << 32) + (bd & mask)};
-#endif
-}
-
-namespace dragonbox {
-// Computes floor(log10(pow(2, e))) for e in [-2620, 2620] using the method from
-// https://fmt.dev/papers/Dragonbox.pdf#page=28, section 6.1.
-inline auto floor_log10_pow2(int e) noexcept -> int {
- FMT_ASSERT(e <= 2620 && e >= -2620, "too large exponent");
- static_assert((-1 >> 1) == -1, "right shift is not arithmetic");
- return (e * 315653) >> 20;
-}
-
-inline auto floor_log2_pow10(int e) noexcept -> int {
- FMT_ASSERT(e <= 1233 && e >= -1233, "too large exponent");
- return (e * 1741647) >> 19;
-}
-
-// Computes upper 64 bits of multiplication of two 64-bit unsigned integers.
-inline auto umul128_upper64(uint64_t x, uint64_t y) noexcept -> uint64_t {
-#if FMT_USE_INT128
- auto p = static_cast<uint128_opt>(x) * static_cast<uint128_opt>(y);
- return static_cast<uint64_t>(p >> 64);
-#elif defined(_MSC_VER) && defined(_M_X64)
- return __umulh(x, y);
-#else
- return umul128(x, y).high();
-#endif
-}
-
-// Computes upper 128 bits of multiplication of a 64-bit unsigned integer and a
-// 128-bit unsigned integer.
-inline auto umul192_upper128(uint64_t x, uint128_fallback y) noexcept
- -> uint128_fallback {
- uint128_fallback r = umul128(x, y.high());
- r += umul128_upper64(x, y.low());
- return r;
-}
-
-FMT_API auto get_cached_power(int k) noexcept -> uint128_fallback;
-
-// Type-specific information that Dragonbox uses.
-template <typename T, typename Enable = void> struct float_info;
-
-template <> struct float_info<float> {
- using carrier_uint = uint32_t;
- static const int exponent_bits = 8;
- static const int kappa = 1;
- static const int big_divisor = 100;
- static const int small_divisor = 10;
- static const int min_k = -31;
- static const int max_k = 46;
- static const int shorter_interval_tie_lower_threshold = -35;
- static const int shorter_interval_tie_upper_threshold = -35;
-};
-
-template <> struct float_info<double> {
- using carrier_uint = uint64_t;
- static const int exponent_bits = 11;
- static const int kappa = 2;
- static const int big_divisor = 1000;
- static const int small_divisor = 100;
- static const int min_k = -292;
- static const int max_k = 341;
- static const int shorter_interval_tie_lower_threshold = -77;
- static const int shorter_interval_tie_upper_threshold = -77;
-};
-
-// An 80- or 128-bit floating point number.
-template <typename T>
-struct float_info<T, enable_if_t<std::numeric_limits<T>::digits == 64 ||
- std::numeric_limits<T>::digits == 113 ||
- is_float128<T>::value>> {
- using carrier_uint = detail::uint128_t;
- static const int exponent_bits = 15;
-};
-
-// A double-double floating point number.
-template <typename T>
-struct float_info<T, enable_if_t<is_double_double<T>::value>> {
- using carrier_uint = detail::uint128_t;
-};
-
-template <typename T> struct decimal_fp {
- using significand_type = typename float_info<T>::carrier_uint;
- significand_type significand;
- int exponent;
-};
-
-template <typename T> FMT_API auto to_decimal(T x) noexcept -> decimal_fp<T>;
-} // namespace dragonbox
-
-// Returns true iff Float has the implicit bit which is not stored.
-template <typename Float> constexpr auto has_implicit_bit() -> bool {
- // An 80-bit FP number has a 64-bit significand an no implicit bit.
- return std::numeric_limits<Float>::digits != 64;
-}
-
-// Returns the number of significand bits stored in Float. The implicit bit is
-// not counted since it is not stored.
-template <typename Float> constexpr auto num_significand_bits() -> int {
- // std::numeric_limits may not support __float128.
- return is_float128<Float>() ? 112
- : (std::numeric_limits<Float>::digits -
- (has_implicit_bit<Float>() ? 1 : 0));
-}
-
-template <typename Float>
-constexpr auto exponent_mask() ->
- typename dragonbox::float_info<Float>::carrier_uint {
- using float_uint = typename dragonbox::float_info<Float>::carrier_uint;
- return ((float_uint(1) << dragonbox::float_info<Float>::exponent_bits) - 1)
- << num_significand_bits<Float>();
-}
-template <typename Float> constexpr auto exponent_bias() -> int {
- // std::numeric_limits may not support __float128.
- return is_float128<Float>() ? 16383
- : std::numeric_limits<Float>::max_exponent - 1;
-}
-
-// Writes the exponent exp in the form "[+-]d{2,3}" to buffer.
-template <typename Char, typename It>
-FMT_CONSTEXPR auto write_exponent(int exp, It it) -> It {
- FMT_ASSERT(-10000 < exp && exp < 10000, "exponent out of range");
- if (exp < 0) {
- *it++ = static_cast<Char>('-');
- exp = -exp;
- } else {
- *it++ = static_cast<Char>('+');
- }
- if (exp >= 100) {
- const char* top = digits2(to_unsigned(exp / 100));
- if (exp >= 1000) *it++ = static_cast<Char>(top[0]);
- *it++ = static_cast<Char>(top[1]);
- exp %= 100;
- }
- const char* d = digits2(to_unsigned(exp));
- *it++ = static_cast<Char>(d[0]);
- *it++ = static_cast<Char>(d[1]);
- return it;
-}
-
-// A floating-point number f * pow(2, e) where F is an unsigned type.
-template <typename F> struct basic_fp {
- F f;
- int e;
-
- static constexpr const int num_significand_bits =
- static_cast<int>(sizeof(F) * num_bits<unsigned char>());
-
- constexpr basic_fp() : f(0), e(0) {}
- constexpr basic_fp(uint64_t f_val, int e_val) : f(f_val), e(e_val) {}
-
- // Constructs fp from an IEEE754 floating-point number.
- template <typename Float> FMT_CONSTEXPR basic_fp(Float n) { assign(n); }
-
- // Assigns n to this and return true iff predecessor is closer than successor.
- template <typename Float, FMT_ENABLE_IF(!is_double_double<Float>::value)>
- FMT_CONSTEXPR auto assign(Float n) -> bool {
- static_assert(std::numeric_limits<Float>::digits <= 113, "unsupported FP");
- // Assume Float is in the format [sign][exponent][significand].
- using carrier_uint = typename dragonbox::float_info<Float>::carrier_uint;
- const auto num_float_significand_bits =
- detail::num_significand_bits<Float>();
- const auto implicit_bit = carrier_uint(1) << num_float_significand_bits;
- const auto significand_mask = implicit_bit - 1;
- auto u = bit_cast<carrier_uint>(n);
- f = static_cast<F>(u & significand_mask);
- auto biased_e = static_cast<int>((u & exponent_mask<Float>()) >>
- num_float_significand_bits);
- // The predecessor is closer if n is a normalized power of 2 (f == 0)
- // other than the smallest normalized number (biased_e > 1).
- auto is_predecessor_closer = f == 0 && biased_e > 1;
- if (biased_e == 0)
- biased_e = 1; // Subnormals use biased exponent 1 (min exponent).
- else if (has_implicit_bit<Float>())
- f += static_cast<F>(implicit_bit);
- e = biased_e - exponent_bias<Float>() - num_float_significand_bits;
- if (!has_implicit_bit<Float>()) ++e;
- return is_predecessor_closer;
- }
-
- template <typename Float, FMT_ENABLE_IF(is_double_double<Float>::value)>
- FMT_CONSTEXPR auto assign(Float n) -> bool {
- static_assert(std::numeric_limits<double>::is_iec559, "unsupported FP");
- return assign(static_cast<double>(n));
- }
-};
-
-using fp = basic_fp<unsigned long long>;
-
-// Normalizes the value converted from double and multiplied by (1 << SHIFT).
-template <int SHIFT = 0, typename F>
-FMT_CONSTEXPR auto normalize(basic_fp<F> value) -> basic_fp<F> {
- // Handle subnormals.
- const auto implicit_bit = F(1) << num_significand_bits<double>();
- const auto shifted_implicit_bit = implicit_bit << SHIFT;
- while ((value.f & shifted_implicit_bit) == 0) {
- value.f <<= 1;
- --value.e;
- }
- // Subtract 1 to account for hidden bit.
- const auto offset = basic_fp<F>::num_significand_bits -
- num_significand_bits<double>() - SHIFT - 1;
- value.f <<= offset;
- value.e -= offset;
- return value;
-}
-
-// Computes lhs * rhs / pow(2, 64) rounded to nearest with half-up tie breaking.
-FMT_CONSTEXPR inline auto multiply(uint64_t lhs, uint64_t rhs) -> uint64_t {
-#if FMT_USE_INT128
- auto product = static_cast<__uint128_t>(lhs) * rhs;
- auto f = static_cast<uint64_t>(product >> 64);
- return (static_cast<uint64_t>(product) & (1ULL << 63)) != 0 ? f + 1 : f;
-#else
- // Multiply 32-bit parts of significands.
- uint64_t mask = (1ULL << 32) - 1;
- uint64_t a = lhs >> 32, b = lhs & mask;
- uint64_t c = rhs >> 32, d = rhs & mask;
- uint64_t ac = a * c, bc = b * c, ad = a * d, bd = b * d;
- // Compute mid 64-bit of result and round.
- uint64_t mid = (bd >> 32) + (ad & mask) + (bc & mask) + (1U << 31);
- return ac + (ad >> 32) + (bc >> 32) + (mid >> 32);
-#endif
-}
-
-FMT_CONSTEXPR inline auto operator*(fp x, fp y) -> fp {
- return {multiply(x.f, y.f), x.e + y.e + 64};
-}
-
-template <typename T, bool doublish = num_bits<T>() == num_bits<double>()>
-using convert_float_result =
- conditional_t<std::is_same<T, float>::value || doublish, double, T>;
-
-template <typename T>
-constexpr auto convert_float(T value) -> convert_float_result<T> {
- return static_cast<convert_float_result<T>>(value);
-}
-
-template <typename OutputIt, typename Char>
-FMT_NOINLINE FMT_CONSTEXPR auto fill(OutputIt it, size_t n,
- const fill_t<Char>& fill) -> OutputIt {
- auto fill_size = fill.size();
- if (fill_size == 1) return detail::fill_n(it, n, fill[0]);
- auto data = fill.data();
- for (size_t i = 0; i < n; ++i)
- it = copy_str<Char>(data, data + fill_size, it);
- return it;
-}
-
-// Writes the output of f, padded according to format specifications in specs.
-// size: output size in code units.
-// width: output display width in (terminal) column positions.
-template <align::type align = align::left, typename OutputIt, typename Char,
- typename F>
-FMT_CONSTEXPR auto write_padded(OutputIt out, const format_specs<Char>& specs,
- size_t size, size_t width, F&& f) -> OutputIt {
- static_assert(align == align::left || align == align::right, "");
- unsigned spec_width = to_unsigned(specs.width);
- size_t padding = spec_width > width ? spec_width - width : 0;
- // Shifts are encoded as string literals because static constexpr is not
- // supported in constexpr functions.
- auto* shifts = align == align::left ? "\x1f\x1f\x00\x01" : "\x00\x1f\x00\x01";
- size_t left_padding = padding >> shifts[specs.align];
- size_t right_padding = padding - left_padding;
- auto it = reserve(out, size + padding * specs.fill.size());
- if (left_padding != 0) it = fill(it, left_padding, specs.fill);
- it = f(it);
- if (right_padding != 0) it = fill(it, right_padding, specs.fill);
- return base_iterator(out, it);
-}
-
-template <align::type align = align::left, typename OutputIt, typename Char,
- typename F>
-constexpr auto write_padded(OutputIt out, const format_specs<Char>& specs,
- size_t size, F&& f) -> OutputIt {
- return write_padded<align>(out, specs, size, size, f);
-}
-
-template <align::type align = align::left, typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write_bytes(OutputIt out, string_view bytes,
- const format_specs<Char>& specs) -> OutputIt {
- return write_padded<align>(
- out, specs, bytes.size(), [bytes](reserve_iterator<OutputIt> it) {
- const char* data = bytes.data();
- return copy_str<Char>(data, data + bytes.size(), it);
- });
-}
-
-template <typename Char, typename OutputIt, typename UIntPtr>
-auto write_ptr(OutputIt out, UIntPtr value, const format_specs<Char>* specs)
- -> OutputIt {
- int num_digits = count_digits<4>(value);
- auto size = to_unsigned(num_digits) + size_t(2);
- auto write = [=](reserve_iterator<OutputIt> it) {
- *it++ = static_cast<Char>('0');
- *it++ = static_cast<Char>('x');
- return format_uint<4, Char>(it, value, num_digits);
- };
- return specs ? write_padded<align::right>(out, *specs, size, write)
- : base_iterator(out, write(reserve(out, size)));
-}
-
-// Returns true iff the code point cp is printable.
-FMT_API auto is_printable(uint32_t cp) -> bool;
-
-inline auto needs_escape(uint32_t cp) -> bool {
- return cp < 0x20 || cp == 0x7f || cp == '"' || cp == '\\' ||
- !is_printable(cp);
-}
-
-template <typename Char> struct find_escape_result {
- const Char* begin;
- const Char* end;
- uint32_t cp;
-};
-
-template <typename Char>
-using make_unsigned_char =
- typename conditional_t<std::is_integral<Char>::value,
- std::make_unsigned<Char>,
- type_identity<uint32_t>>::type;
-
-template <typename Char>
-auto find_escape(const Char* begin, const Char* end)
- -> find_escape_result<Char> {
- for (; begin != end; ++begin) {
- uint32_t cp = static_cast<make_unsigned_char<Char>>(*begin);
- if (const_check(sizeof(Char) == 1) && cp >= 0x80) continue;
- if (needs_escape(cp)) return {begin, begin + 1, cp};
- }
- return {begin, nullptr, 0};
-}
-
-inline auto find_escape(const char* begin, const char* end)
- -> find_escape_result<char> {
- if (!is_utf8()) return find_escape<char>(begin, end);
- auto result = find_escape_result<char>{end, nullptr, 0};
- for_each_codepoint(string_view(begin, to_unsigned(end - begin)),
- [&](uint32_t cp, string_view sv) {
- if (needs_escape(cp)) {
- result = {sv.begin(), sv.end(), cp};
- return false;
- }
- return true;
- });
- return result;
-}
-
-#define FMT_STRING_IMPL(s, base, explicit) \
- [] { \
- /* Use the hidden visibility as a workaround for a GCC bug (#1973). */ \
- /* Use a macro-like name to avoid shadowing warnings. */ \
- struct FMT_VISIBILITY("hidden") FMT_COMPILE_STRING : base { \
- using char_type FMT_MAYBE_UNUSED = fmt::remove_cvref_t<decltype(s[0])>; \
- FMT_MAYBE_UNUSED FMT_CONSTEXPR explicit \
- operator fmt::basic_string_view<char_type>() const { \
- return fmt::detail_exported::compile_string_to_view<char_type>(s); \
- } \
- }; \
- return FMT_COMPILE_STRING(); \
- }()
-
-/**
- \rst
- Constructs a compile-time format string from a string literal *s*.
-
- **Example**::
-
- // A compile-time error because 'd' is an invalid specifier for strings.
- std::string s = fmt::format(FMT_STRING("{:d}"), "foo");
- \endrst
- */
-#define FMT_STRING(s) FMT_STRING_IMPL(s, fmt::detail::compile_string, )
-
-template <size_t width, typename Char, typename OutputIt>
-auto write_codepoint(OutputIt out, char prefix, uint32_t cp) -> OutputIt {
- *out++ = static_cast<Char>('\\');
- *out++ = static_cast<Char>(prefix);
- Char buf[width];
- fill_n(buf, width, static_cast<Char>('0'));
- format_uint<4>(buf, cp, width);
- return copy_str<Char>(buf, buf + width, out);
-}
-
-template <typename OutputIt, typename Char>
-auto write_escaped_cp(OutputIt out, const find_escape_result<Char>& escape)
- -> OutputIt {
- auto c = static_cast<Char>(escape.cp);
- switch (escape.cp) {
- case '\n':
- *out++ = static_cast<Char>('\\');
- c = static_cast<Char>('n');
- break;
- case '\r':
- *out++ = static_cast<Char>('\\');
- c = static_cast<Char>('r');
- break;
- case '\t':
- *out++ = static_cast<Char>('\\');
- c = static_cast<Char>('t');
- break;
- case '"':
- FMT_FALLTHROUGH;
- case '\'':
- FMT_FALLTHROUGH;
- case '\\':
- *out++ = static_cast<Char>('\\');
- break;
- default:
- if (escape.cp < 0x100) {
- return write_codepoint<2, Char>(out, 'x', escape.cp);
- }
- if (escape.cp < 0x10000) {
- return write_codepoint<4, Char>(out, 'u', escape.cp);
- }
- if (escape.cp < 0x110000) {
- return write_codepoint<8, Char>(out, 'U', escape.cp);
- }
- for (Char escape_char : basic_string_view<Char>(
- escape.begin, to_unsigned(escape.end - escape.begin))) {
- out = write_codepoint<2, Char>(out, 'x',
- static_cast<uint32_t>(escape_char) & 0xFF);
- }
- return out;
- }
- *out++ = c;
- return out;
-}
-
-template <typename Char, typename OutputIt>
-auto write_escaped_string(OutputIt out, basic_string_view<Char> str)
- -> OutputIt {
- *out++ = static_cast<Char>('"');
- auto begin = str.begin(), end = str.end();
- do {
- auto escape = find_escape(begin, end);
- out = copy_str<Char>(begin, escape.begin, out);
- begin = escape.end;
- if (!begin) break;
- out = write_escaped_cp<OutputIt, Char>(out, escape);
- } while (begin != end);
- *out++ = static_cast<Char>('"');
- return out;
-}
-
-template <typename Char, typename OutputIt>
-auto write_escaped_char(OutputIt out, Char v) -> OutputIt {
- Char v_array[1] = {v};
- *out++ = static_cast<Char>('\'');
- if ((needs_escape(static_cast<uint32_t>(v)) && v != static_cast<Char>('"')) ||
- v == static_cast<Char>('\'')) {
- out = write_escaped_cp(out,
- find_escape_result<Char>{v_array, v_array + 1,
- static_cast<uint32_t>(v)});
- } else {
- *out++ = v;
- }
- *out++ = static_cast<Char>('\'');
- return out;
-}
-
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write_char(OutputIt out, Char value,
- const format_specs<Char>& specs) -> OutputIt {
- bool is_debug = specs.type == presentation_type::debug;
- return write_padded(out, specs, 1, [=](reserve_iterator<OutputIt> it) {
- if (is_debug) return write_escaped_char(it, value);
- *it++ = value;
- return it;
- });
-}
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write(OutputIt out, Char value,
- const format_specs<Char>& specs, locale_ref loc = {})
- -> OutputIt {
- // char is formatted as unsigned char for consistency across platforms.
- using unsigned_type =
- conditional_t<std::is_same<Char, char>::value, unsigned char, unsigned>;
- return check_char_specs(specs)
- ? write_char(out, value, specs)
- : write(out, static_cast<unsigned_type>(value), specs, loc);
-}
-
-// Data for write_int that doesn't depend on output iterator type. It is used to
-// avoid template code bloat.
-template <typename Char> struct write_int_data {
- size_t size;
- size_t padding;
-
- FMT_CONSTEXPR write_int_data(int num_digits, unsigned prefix,
- const format_specs<Char>& specs)
- : size((prefix >> 24) + to_unsigned(num_digits)), padding(0) {
- if (specs.align == align::numeric) {
- auto width = to_unsigned(specs.width);
- if (width > size) {
- padding = width - size;
- size = width;
- }
- } else if (specs.precision > num_digits) {
- size = (prefix >> 24) + to_unsigned(specs.precision);
- padding = to_unsigned(specs.precision - num_digits);
- }
- }
-};
-
-// Writes an integer in the format
-// <left-padding><prefix><numeric-padding><digits><right-padding>
-// where <digits> are written by write_digits(it).
-// prefix contains chars in three lower bytes and the size in the fourth byte.
-template <typename OutputIt, typename Char, typename W>
-FMT_CONSTEXPR FMT_INLINE auto write_int(OutputIt out, int num_digits,
- unsigned prefix,
- const format_specs<Char>& specs,
- W write_digits) -> OutputIt {
- // Slightly faster check for specs.width == 0 && specs.precision == -1.
- if ((specs.width | (specs.precision + 1)) == 0) {
- auto it = reserve(out, to_unsigned(num_digits) + (prefix >> 24));
- if (prefix != 0) {
- for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8)
- *it++ = static_cast<Char>(p & 0xff);
- }
- return base_iterator(out, write_digits(it));
- }
- auto data = write_int_data<Char>(num_digits, prefix, specs);
- return write_padded<align::right>(
- out, specs, data.size, [=](reserve_iterator<OutputIt> it) {
- for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8)
- *it++ = static_cast<Char>(p & 0xff);
- it = detail::fill_n(it, data.padding, static_cast<Char>('0'));
- return write_digits(it);
- });
-}
-
-template <typename Char> class digit_grouping {
- private:
- std::string grouping_;
- std::basic_string<Char> thousands_sep_;
-
- struct next_state {
- std::string::const_iterator group;
- int pos;
- };
- auto initial_state() const -> next_state { return {grouping_.begin(), 0}; }
-
- // Returns the next digit group separator position.
- auto next(next_state& state) const -> int {
- if (thousands_sep_.empty()) return max_value<int>();
- if (state.group == grouping_.end()) return state.pos += grouping_.back();
- if (*state.group <= 0 || *state.group == max_value<char>())
- return max_value<int>();
- state.pos += *state.group++;
- return state.pos;
- }
-
- public:
- explicit digit_grouping(locale_ref loc, bool localized = true) {
- if (!localized) return;
- auto sep = thousands_sep<Char>(loc);
- grouping_ = sep.grouping;
- if (sep.thousands_sep) thousands_sep_.assign(1, sep.thousands_sep);
- }
- digit_grouping(std::string grouping, std::basic_string<Char> sep)
- : grouping_(std::move(grouping)), thousands_sep_(std::move(sep)) {}
-
- auto has_separator() const -> bool { return !thousands_sep_.empty(); }
-
- auto count_separators(int num_digits) const -> int {
- int count = 0;
- auto state = initial_state();
- while (num_digits > next(state)) ++count;
- return count;
- }
-
- // Applies grouping to digits and write the output to out.
- template <typename Out, typename C>
- auto apply(Out out, basic_string_view<C> digits) const -> Out {
- auto num_digits = static_cast<int>(digits.size());
- auto separators = basic_memory_buffer<int>();
- separators.push_back(0);
- auto state = initial_state();
- while (int i = next(state)) {
- if (i >= num_digits) break;
- separators.push_back(i);
- }
- for (int i = 0, sep_index = static_cast<int>(separators.size() - 1);
- i < num_digits; ++i) {
- if (num_digits - i == separators[sep_index]) {
- out =
- copy_str<Char>(thousands_sep_.data(),
- thousands_sep_.data() + thousands_sep_.size(), out);
- --sep_index;
- }
- *out++ = static_cast<Char>(digits[to_unsigned(i)]);
- }
- return out;
- }
-};
-
-FMT_CONSTEXPR inline void prefix_append(unsigned& prefix, unsigned value) {
- prefix |= prefix != 0 ? value << 8 : value;
- prefix += (1u + (value > 0xff ? 1 : 0)) << 24;
-}
-
-// Writes a decimal integer with digit grouping.
-template <typename OutputIt, typename UInt, typename Char>
-auto write_int(OutputIt out, UInt value, unsigned prefix,
- const format_specs<Char>& specs,
- const digit_grouping<Char>& grouping) -> OutputIt {
- static_assert(std::is_same<uint64_or_128_t<UInt>, UInt>::value, "");
- int num_digits = 0;
- auto buffer = memory_buffer();
- switch (specs.type) {
- case presentation_type::none:
- case presentation_type::dec: {
- num_digits = count_digits(value);
- format_decimal<char>(appender(buffer), value, num_digits);
- break;
- }
- case presentation_type::hex_lower:
- case presentation_type::hex_upper: {
- bool upper = specs.type == presentation_type::hex_upper;
- if (specs.alt)
- prefix_append(prefix, unsigned(upper ? 'X' : 'x') << 8 | '0');
- num_digits = count_digits<4>(value);
- format_uint<4, char>(appender(buffer), value, num_digits, upper);
- break;
- }
- case presentation_type::bin_lower:
- case presentation_type::bin_upper: {
- bool upper = specs.type == presentation_type::bin_upper;
- if (specs.alt)
- prefix_append(prefix, unsigned(upper ? 'B' : 'b') << 8 | '0');
- num_digits = count_digits<1>(value);
- format_uint<1, char>(appender(buffer), value, num_digits);
- break;
- }
- case presentation_type::oct: {
- num_digits = count_digits<3>(value);
- // Octal prefix '0' is counted as a digit, so only add it if precision
- // is not greater than the number of digits.
- if (specs.alt && specs.precision <= num_digits && value != 0)
- prefix_append(prefix, '0');
- format_uint<3, char>(appender(buffer), value, num_digits);
- break;
- }
- case presentation_type::chr:
- return write_char(out, static_cast<Char>(value), specs);
- default:
- throw_format_error("invalid format specifier");
- }
-
- unsigned size = (prefix != 0 ? prefix >> 24 : 0) + to_unsigned(num_digits) +
- to_unsigned(grouping.count_separators(num_digits));
- return write_padded<align::right>(
- out, specs, size, size, [&](reserve_iterator<OutputIt> it) {
- for (unsigned p = prefix & 0xffffff; p != 0; p >>= 8)
- *it++ = static_cast<Char>(p & 0xff);
- return grouping.apply(it, string_view(buffer.data(), buffer.size()));
- });
-}
-
-// Writes a localized value.
-FMT_API auto write_loc(appender out, loc_value value,
- const format_specs<>& specs, locale_ref loc) -> bool;
-template <typename OutputIt, typename Char>
-inline auto write_loc(OutputIt, loc_value, const format_specs<Char>&,
- locale_ref) -> bool {
- return false;
-}
-
-template <typename UInt> struct write_int_arg {
- UInt abs_value;
- unsigned prefix;
-};
-
-template <typename T>
-FMT_CONSTEXPR auto make_write_int_arg(T value, sign_t sign)
- -> write_int_arg<uint32_or_64_or_128_t<T>> {
- auto prefix = 0u;
- auto abs_value = static_cast<uint32_or_64_or_128_t<T>>(value);
- if (is_negative(value)) {
- prefix = 0x01000000 | '-';
- abs_value = 0 - abs_value;
- } else {
- constexpr const unsigned prefixes[4] = {0, 0, 0x1000000u | '+',
- 0x1000000u | ' '};
- prefix = prefixes[sign];
- }
- return {abs_value, prefix};
-}
-
-template <typename Char = char> struct loc_writer {
- buffer_appender<Char> out;
- const format_specs<Char>& specs;
- std::basic_string<Char> sep;
- std::string grouping;
- std::basic_string<Char> decimal_point;
-
- template <typename T, FMT_ENABLE_IF(is_integer<T>::value)>
- auto operator()(T value) -> bool {
- auto arg = make_write_int_arg(value, specs.sign);
- write_int(out, static_cast<uint64_or_128_t<T>>(arg.abs_value), arg.prefix,
- specs, digit_grouping<Char>(grouping, sep));
- return true;
- }
-
- template <typename T, FMT_ENABLE_IF(!is_integer<T>::value)>
- auto operator()(T) -> bool {
- return false;
- }
-};
-
-template <typename Char, typename OutputIt, typename T>
-FMT_CONSTEXPR FMT_INLINE auto write_int(OutputIt out, write_int_arg<T> arg,
- const format_specs<Char>& specs,
- locale_ref) -> OutputIt {
- static_assert(std::is_same<T, uint32_or_64_or_128_t<T>>::value, "");
- auto abs_value = arg.abs_value;
- auto prefix = arg.prefix;
- switch (specs.type) {
- case presentation_type::none:
- case presentation_type::dec: {
- auto num_digits = count_digits(abs_value);
- return write_int(
- out, num_digits, prefix, specs, [=](reserve_iterator<OutputIt> it) {
- return format_decimal<Char>(it, abs_value, num_digits).end;
- });
- }
- case presentation_type::hex_lower:
- case presentation_type::hex_upper: {
- bool upper = specs.type == presentation_type::hex_upper;
- if (specs.alt)
- prefix_append(prefix, unsigned(upper ? 'X' : 'x') << 8 | '0');
- int num_digits = count_digits<4>(abs_value);
- return write_int(
- out, num_digits, prefix, specs, [=](reserve_iterator<OutputIt> it) {
- return format_uint<4, Char>(it, abs_value, num_digits, upper);
- });
- }
- case presentation_type::bin_lower:
- case presentation_type::bin_upper: {
- bool upper = specs.type == presentation_type::bin_upper;
- if (specs.alt)
- prefix_append(prefix, unsigned(upper ? 'B' : 'b') << 8 | '0');
- int num_digits = count_digits<1>(abs_value);
- return write_int(out, num_digits, prefix, specs,
- [=](reserve_iterator<OutputIt> it) {
- return format_uint<1, Char>(it, abs_value, num_digits);
- });
- }
- case presentation_type::oct: {
- int num_digits = count_digits<3>(abs_value);
- // Octal prefix '0' is counted as a digit, so only add it if precision
- // is not greater than the number of digits.
- if (specs.alt && specs.precision <= num_digits && abs_value != 0)
- prefix_append(prefix, '0');
- return write_int(out, num_digits, prefix, specs,
- [=](reserve_iterator<OutputIt> it) {
- return format_uint<3, Char>(it, abs_value, num_digits);
- });
- }
- case presentation_type::chr:
- return write_char(out, static_cast<Char>(abs_value), specs);
- default:
- throw_format_error("invalid format specifier");
- }
- return out;
-}
-template <typename Char, typename OutputIt, typename T>
-FMT_CONSTEXPR FMT_NOINLINE auto write_int_noinline(
- OutputIt out, write_int_arg<T> arg, const format_specs<Char>& specs,
- locale_ref loc) -> OutputIt {
- return write_int(out, arg, specs, loc);
-}
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(is_integral<T>::value &&
- !std::is_same<T, bool>::value &&
- std::is_same<OutputIt, buffer_appender<Char>>::value)>
-FMT_CONSTEXPR FMT_INLINE auto write(OutputIt out, T value,
- const format_specs<Char>& specs,
- locale_ref loc) -> OutputIt {
- if (specs.localized && write_loc(out, value, specs, loc)) return out;
- return write_int_noinline(out, make_write_int_arg(value, specs.sign), specs,
- loc);
-}
-// An inlined version of write used in format string compilation.
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(is_integral<T>::value &&
- !std::is_same<T, bool>::value &&
- !std::is_same<OutputIt, buffer_appender<Char>>::value)>
-FMT_CONSTEXPR FMT_INLINE auto write(OutputIt out, T value,
- const format_specs<Char>& specs,
- locale_ref loc) -> OutputIt {
- if (specs.localized && write_loc(out, value, specs, loc)) return out;
- return write_int(out, make_write_int_arg(value, specs.sign), specs, loc);
-}
-
-// An output iterator that counts the number of objects written to it and
-// discards them.
-class counting_iterator {
- private:
- size_t count_;
-
- public:
- using iterator_category = std::output_iterator_tag;
- using difference_type = std::ptrdiff_t;
- using pointer = void;
- using reference = void;
- FMT_UNCHECKED_ITERATOR(counting_iterator);
-
- struct value_type {
- template <typename T> FMT_CONSTEXPR void operator=(const T&) {}
- };
-
- FMT_CONSTEXPR counting_iterator() : count_(0) {}
-
- FMT_CONSTEXPR auto count() const -> size_t { return count_; }
-
- FMT_CONSTEXPR auto operator++() -> counting_iterator& {
- ++count_;
- return *this;
- }
- FMT_CONSTEXPR auto operator++(int) -> counting_iterator {
- auto it = *this;
- ++*this;
- return it;
- }
-
- FMT_CONSTEXPR friend auto operator+(counting_iterator it, difference_type n)
- -> counting_iterator {
- it.count_ += static_cast<size_t>(n);
- return it;
- }
-
- FMT_CONSTEXPR auto operator*() const -> value_type { return {}; }
-};
-
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write(OutputIt out, basic_string_view<Char> s,
- const format_specs<Char>& specs) -> OutputIt {
- auto data = s.data();
- auto size = s.size();
- if (specs.precision >= 0 && to_unsigned(specs.precision) < size)
- size = code_point_index(s, to_unsigned(specs.precision));
- bool is_debug = specs.type == presentation_type::debug;
- size_t width = 0;
- if (specs.width != 0) {
- if (is_debug)
- width = write_escaped_string(counting_iterator{}, s).count();
- else
- width = compute_width(basic_string_view<Char>(data, size));
- }
- return write_padded(out, specs, size, width,
- [=](reserve_iterator<OutputIt> it) {
- if (is_debug) return write_escaped_string(it, s);
- return copy_str<Char>(data, data + size, it);
- });
-}
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write(OutputIt out,
- basic_string_view<type_identity_t<Char>> s,
- const format_specs<Char>& specs, locale_ref)
- -> OutputIt {
- return write(out, s, specs);
-}
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write(OutputIt out, const Char* s,
- const format_specs<Char>& specs, locale_ref)
- -> OutputIt {
- if (specs.type == presentation_type::pointer)
- return write_ptr<Char>(out, bit_cast<uintptr_t>(s), &specs);
- if (!s) throw_format_error("string pointer is null");
- return write(out, basic_string_view<Char>(s), specs, {});
-}
-
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(is_integral<T>::value &&
- !std::is_same<T, bool>::value &&
- !std::is_same<T, Char>::value)>
-FMT_CONSTEXPR auto write(OutputIt out, T value) -> OutputIt {
- auto abs_value = static_cast<uint32_or_64_or_128_t<T>>(value);
- bool negative = is_negative(value);
- // Don't do -abs_value since it trips unsigned-integer-overflow sanitizer.
- if (negative) abs_value = ~abs_value + 1;
- int num_digits = count_digits(abs_value);
- auto size = (negative ? 1 : 0) + static_cast<size_t>(num_digits);
- auto it = reserve(out, size);
- if (auto ptr = to_pointer<Char>(it, size)) {
- if (negative) *ptr++ = static_cast<Char>('-');
- format_decimal<Char>(ptr, abs_value, num_digits);
- return out;
- }
- if (negative) *it++ = static_cast<Char>('-');
- it = format_decimal<Char>(it, abs_value, num_digits).end;
- return base_iterator(out, it);
-}
-
-// DEPRECATED!
-template <typename Char>
-FMT_CONSTEXPR auto parse_align(const Char* begin, const Char* end,
- format_specs<Char>& specs) -> const Char* {
- FMT_ASSERT(begin != end, "");
- auto align = align::none;
- auto p = begin + code_point_length(begin);
- if (end - p <= 0) p = begin;
- for (;;) {
- switch (to_ascii(*p)) {
- case '<':
- align = align::left;
- break;
- case '>':
- align = align::right;
- break;
- case '^':
- align = align::center;
- break;
- }
- if (align != align::none) {
- if (p != begin) {
- auto c = *begin;
- if (c == '}') return begin;
- if (c == '{') {
- throw_format_error("invalid fill character '{'");
- return begin;
- }
- specs.fill = {begin, to_unsigned(p - begin)};
- begin = p + 1;
- } else {
- ++begin;
- }
- break;
- } else if (p == begin) {
- break;
- }
- p = begin;
- }
- specs.align = align;
- return begin;
-}
-
-// A floating-point presentation format.
-enum class float_format : unsigned char {
- general, // General: exponent notation or fixed point based on magnitude.
- exp, // Exponent notation with the default precision of 6, e.g. 1.2e-3.
- fixed, // Fixed point with the default precision of 6, e.g. 0.0012.
- hex
-};
-
-struct float_specs {
- int precision;
- float_format format : 8;
- sign_t sign : 8;
- bool upper : 1;
- bool locale : 1;
- bool binary32 : 1;
- bool showpoint : 1;
-};
-
-template <typename Char>
-FMT_CONSTEXPR auto parse_float_type_spec(const format_specs<Char>& specs)
- -> float_specs {
- auto result = float_specs();
- result.showpoint = specs.alt;
- result.locale = specs.localized;
- switch (specs.type) {
- case presentation_type::none:
- result.format = float_format::general;
- break;
- case presentation_type::general_upper:
- result.upper = true;
- FMT_FALLTHROUGH;
- case presentation_type::general_lower:
- result.format = float_format::general;
- break;
- case presentation_type::exp_upper:
- result.upper = true;
- FMT_FALLTHROUGH;
- case presentation_type::exp_lower:
- result.format = float_format::exp;
- result.showpoint |= specs.precision != 0;
- break;
- case presentation_type::fixed_upper:
- result.upper = true;
- FMT_FALLTHROUGH;
- case presentation_type::fixed_lower:
- result.format = float_format::fixed;
- result.showpoint |= specs.precision != 0;
- break;
- case presentation_type::hexfloat_upper:
- result.upper = true;
- FMT_FALLTHROUGH;
- case presentation_type::hexfloat_lower:
- result.format = float_format::hex;
- break;
- default:
- throw_format_error("invalid format specifier");
- break;
- }
- return result;
-}
-
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR20 auto write_nonfinite(OutputIt out, bool isnan,
- format_specs<Char> specs,
- const float_specs& fspecs) -> OutputIt {
- auto str =
- isnan ? (fspecs.upper ? "NAN" : "nan") : (fspecs.upper ? "INF" : "inf");
- constexpr size_t str_size = 3;
- auto sign = fspecs.sign;
- auto size = str_size + (sign ? 1 : 0);
- // Replace '0'-padding with space for non-finite values.
- const bool is_zero_fill =
- specs.fill.size() == 1 && *specs.fill.data() == static_cast<Char>('0');
- if (is_zero_fill) specs.fill[0] = static_cast<Char>(' ');
- return write_padded(out, specs, size, [=](reserve_iterator<OutputIt> it) {
- if (sign) *it++ = detail::sign<Char>(sign);
- return copy_str<Char>(str, str + str_size, it);
- });
-}
-
-// A decimal floating-point number significand * pow(10, exp).
-struct big_decimal_fp {
- const char* significand;
- int significand_size;
- int exponent;
-};
-
-constexpr auto get_significand_size(const big_decimal_fp& f) -> int {
- return f.significand_size;
-}
-template <typename T>
-inline auto get_significand_size(const dragonbox::decimal_fp<T>& f) -> int {
- return count_digits(f.significand);
-}
-
-template <typename Char, typename OutputIt>
-constexpr auto write_significand(OutputIt out, const char* significand,
- int significand_size) -> OutputIt {
- return copy_str<Char>(significand, significand + significand_size, out);
-}
-template <typename Char, typename OutputIt, typename UInt>
-inline auto write_significand(OutputIt out, UInt significand,
- int significand_size) -> OutputIt {
- return format_decimal<Char>(out, significand, significand_size).end;
-}
-template <typename Char, typename OutputIt, typename T, typename Grouping>
-FMT_CONSTEXPR20 auto write_significand(OutputIt out, T significand,
- int significand_size, int exponent,
- const Grouping& grouping) -> OutputIt {
- if (!grouping.has_separator()) {
- out = write_significand<Char>(out, significand, significand_size);
- return detail::fill_n(out, exponent, static_cast<Char>('0'));
- }
- auto buffer = memory_buffer();
- write_significand<char>(appender(buffer), significand, significand_size);
- detail::fill_n(appender(buffer), exponent, '0');
- return grouping.apply(out, string_view(buffer.data(), buffer.size()));
-}
-
-template <typename Char, typename UInt,
- FMT_ENABLE_IF(std::is_integral<UInt>::value)>
-inline auto write_significand(Char* out, UInt significand, int significand_size,
- int integral_size, Char decimal_point) -> Char* {
- if (!decimal_point)
- return format_decimal(out, significand, significand_size).end;
- out += significand_size + 1;
- Char* end = out;
- int floating_size = significand_size - integral_size;
- for (int i = floating_size / 2; i > 0; --i) {
- out -= 2;
- copy2(out, digits2(static_cast<std::size_t>(significand % 100)));
- significand /= 100;
- }
- if (floating_size % 2 != 0) {
- *--out = static_cast<Char>('0' + significand % 10);
- significand /= 10;
- }
- *--out = decimal_point;
- format_decimal(out - integral_size, significand, integral_size);
- return end;
-}
-
-template <typename OutputIt, typename UInt, typename Char,
- FMT_ENABLE_IF(!std::is_pointer<remove_cvref_t<OutputIt>>::value)>
-inline auto write_significand(OutputIt out, UInt significand,
- int significand_size, int integral_size,
- Char decimal_point) -> OutputIt {
- // Buffer is large enough to hold digits (digits10 + 1) and a decimal point.
- Char buffer[digits10<UInt>() + 2];
- auto end = write_significand(buffer, significand, significand_size,
- integral_size, decimal_point);
- return detail::copy_str_noinline<Char>(buffer, end, out);
-}
-
-template <typename OutputIt, typename Char>
-FMT_CONSTEXPR auto write_significand(OutputIt out, const char* significand,
- int significand_size, int integral_size,
- Char decimal_point) -> OutputIt {
- out = detail::copy_str_noinline<Char>(significand,
- significand + integral_size, out);
- if (!decimal_point) return out;
- *out++ = decimal_point;
- return detail::copy_str_noinline<Char>(significand + integral_size,
- significand + significand_size, out);
-}
-
-template <typename OutputIt, typename Char, typename T, typename Grouping>
-FMT_CONSTEXPR20 auto write_significand(OutputIt out, T significand,
- int significand_size, int integral_size,
- Char decimal_point,
- const Grouping& grouping) -> OutputIt {
- if (!grouping.has_separator()) {
- return write_significand(out, significand, significand_size, integral_size,
- decimal_point);
- }
- auto buffer = basic_memory_buffer<Char>();
- write_significand(buffer_appender<Char>(buffer), significand,
- significand_size, integral_size, decimal_point);
- grouping.apply(
- out, basic_string_view<Char>(buffer.data(), to_unsigned(integral_size)));
- return detail::copy_str_noinline<Char>(buffer.data() + integral_size,
- buffer.end(), out);
-}
-
-template <typename OutputIt, typename DecimalFP, typename Char,
- typename Grouping = digit_grouping<Char>>
-FMT_CONSTEXPR20 auto do_write_float(OutputIt out, const DecimalFP& f,
- const format_specs<Char>& specs,
- float_specs fspecs, locale_ref loc)
- -> OutputIt {
- auto significand = f.significand;
- int significand_size = get_significand_size(f);
- const Char zero = static_cast<Char>('0');
- auto sign = fspecs.sign;
- size_t size = to_unsigned(significand_size) + (sign ? 1 : 0);
- using iterator = reserve_iterator<OutputIt>;
-
- Char decimal_point =
- fspecs.locale ? detail::decimal_point<Char>(loc) : static_cast<Char>('.');
-
- int output_exp = f.exponent + significand_size - 1;
- auto use_exp_format = [=]() {
- if (fspecs.format == float_format::exp) return true;
- if (fspecs.format != float_format::general) return false;
- // Use the fixed notation if the exponent is in [exp_lower, exp_upper),
- // e.g. 0.0001 instead of 1e-04. Otherwise use the exponent notation.
- const int exp_lower = -4, exp_upper = 16;
- return output_exp < exp_lower ||
- output_exp >= (fspecs.precision > 0 ? fspecs.precision : exp_upper);
- };
- if (use_exp_format()) {
- int num_zeros = 0;
- if (fspecs.showpoint) {
- num_zeros = fspecs.precision - significand_size;
- if (num_zeros < 0) num_zeros = 0;
- size += to_unsigned(num_zeros);
- } else if (significand_size == 1) {
- decimal_point = Char();
- }
- auto abs_output_exp = output_exp >= 0 ? output_exp : -output_exp;
- int exp_digits = 2;
- if (abs_output_exp >= 100) exp_digits = abs_output_exp >= 1000 ? 4 : 3;
-
- size += to_unsigned((decimal_point ? 1 : 0) + 2 + exp_digits);
- char exp_char = fspecs.upper ? 'E' : 'e';
- auto write = [=](iterator it) {
- if (sign) *it++ = detail::sign<Char>(sign);
- // Insert a decimal point after the first digit and add an exponent.
- it = write_significand(it, significand, significand_size, 1,
- decimal_point);
- if (num_zeros > 0) it = detail::fill_n(it, num_zeros, zero);
- *it++ = static_cast<Char>(exp_char);
- return write_exponent<Char>(output_exp, it);
- };
- return specs.width > 0 ? write_padded<align::right>(out, specs, size, write)
- : base_iterator(out, write(reserve(out, size)));
- }
-
- int exp = f.exponent + significand_size;
- if (f.exponent >= 0) {
- // 1234e5 -> 123400000[.0+]
- size += to_unsigned(f.exponent);
- int num_zeros = fspecs.precision - exp;
- abort_fuzzing_if(num_zeros > 5000);
- if (fspecs.showpoint) {
- ++size;
- if (num_zeros <= 0 && fspecs.format != float_format::fixed) num_zeros = 0;
- if (num_zeros > 0) size += to_unsigned(num_zeros);
- }
- auto grouping = Grouping(loc, fspecs.locale);
- size += to_unsigned(grouping.count_separators(exp));
- return write_padded<align::right>(out, specs, size, [&](iterator it) {
- if (sign) *it++ = detail::sign<Char>(sign);
- it = write_significand<Char>(it, significand, significand_size,
- f.exponent, grouping);
- if (!fspecs.showpoint) return it;
- *it++ = decimal_point;
- return num_zeros > 0 ? detail::fill_n(it, num_zeros, zero) : it;
- });
- } else if (exp > 0) {
- // 1234e-2 -> 12.34[0+]
- int num_zeros = fspecs.showpoint ? fspecs.precision - significand_size : 0;
- size += 1 + to_unsigned(num_zeros > 0 ? num_zeros : 0);
- auto grouping = Grouping(loc, fspecs.locale);
- size += to_unsigned(grouping.count_separators(exp));
- return write_padded<align::right>(out, specs, size, [&](iterator it) {
- if (sign) *it++ = detail::sign<Char>(sign);
- it = write_significand(it, significand, significand_size, exp,
- decimal_point, grouping);
- return num_zeros > 0 ? detail::fill_n(it, num_zeros, zero) : it;
- });
- }
- // 1234e-6 -> 0.001234
- int num_zeros = -exp;
- if (significand_size == 0 && fspecs.precision >= 0 &&
- fspecs.precision < num_zeros) {
- num_zeros = fspecs.precision;
- }
- bool pointy = num_zeros != 0 || significand_size != 0 || fspecs.showpoint;
- size += 1 + (pointy ? 1 : 0) + to_unsigned(num_zeros);
- return write_padded<align::right>(out, specs, size, [&](iterator it) {
- if (sign) *it++ = detail::sign<Char>(sign);
- *it++ = zero;
- if (!pointy) return it;
- *it++ = decimal_point;
- it = detail::fill_n(it, num_zeros, zero);
- return write_significand<Char>(it, significand, significand_size);
- });
-}
-
-template <typename Char> class fallback_digit_grouping {
- public:
- constexpr fallback_digit_grouping(locale_ref, bool) {}
-
- constexpr auto has_separator() const -> bool { return false; }
-
- constexpr auto count_separators(int) const -> int { return 0; }
-
- template <typename Out, typename C>
- constexpr auto apply(Out out, basic_string_view<C>) const -> Out {
- return out;
- }
-};
-
-template <typename OutputIt, typename DecimalFP, typename Char>
-FMT_CONSTEXPR20 auto write_float(OutputIt out, const DecimalFP& f,
- const format_specs<Char>& specs,
- float_specs fspecs, locale_ref loc)
- -> OutputIt {
- if (is_constant_evaluated()) {
- return do_write_float<OutputIt, DecimalFP, Char,
- fallback_digit_grouping<Char>>(out, f, specs, fspecs,
- loc);
- } else {
- return do_write_float(out, f, specs, fspecs, loc);
- }
-}
-
-template <typename T> constexpr auto isnan(T value) -> bool {
- return !(value >= value); // std::isnan doesn't support __float128.
-}
-
-template <typename T, typename Enable = void>
-struct has_isfinite : std::false_type {};
-
-template <typename T>
-struct has_isfinite<T, enable_if_t<sizeof(std::isfinite(T())) != 0>>
- : std::true_type {};
-
-template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value&&
- has_isfinite<T>::value)>
-FMT_CONSTEXPR20 auto isfinite(T value) -> bool {
- constexpr T inf = T(std::numeric_limits<double>::infinity());
- if (is_constant_evaluated())
- return !detail::isnan(value) && value < inf && value > -inf;
- return std::isfinite(value);
-}
-template <typename T, FMT_ENABLE_IF(!has_isfinite<T>::value)>
-FMT_CONSTEXPR auto isfinite(T value) -> bool {
- T inf = T(std::numeric_limits<double>::infinity());
- // std::isfinite doesn't support __float128.
- return !detail::isnan(value) && value < inf && value > -inf;
-}
-
-template <typename T, FMT_ENABLE_IF(is_floating_point<T>::value)>
-FMT_INLINE FMT_CONSTEXPR bool signbit(T value) {
- if (is_constant_evaluated()) {
-#ifdef __cpp_if_constexpr
- if constexpr (std::numeric_limits<double>::is_iec559) {
- auto bits = detail::bit_cast<uint64_t>(static_cast<double>(value));
- return (bits >> (num_bits<uint64_t>() - 1)) != 0;
- }
-#endif
- }
- return std::signbit(static_cast<double>(value));
-}
-
-inline FMT_CONSTEXPR20 void adjust_precision(int& precision, int exp10) {
- // Adjust fixed precision by exponent because it is relative to decimal
- // point.
- if (exp10 > 0 && precision > max_value<int>() - exp10)
- FMT_THROW(format_error("number is too big"));
- precision += exp10;
-}
-
-class bigint {
- private:
- // A bigint is stored as an array of bigits (big digits), with bigit at index
- // 0 being the least significant one.
- using bigit = uint32_t;
- using double_bigit = uint64_t;
- enum { bigits_capacity = 32 };
- basic_memory_buffer<bigit, bigits_capacity> bigits_;
- int exp_;
-
- FMT_CONSTEXPR20 auto operator[](int index) const -> bigit {
- return bigits_[to_unsigned(index)];
- }
- FMT_CONSTEXPR20 auto operator[](int index) -> bigit& {
- return bigits_[to_unsigned(index)];
- }
-
- static constexpr const int bigit_bits = num_bits<bigit>();
-
- friend struct formatter<bigint>;
-
- FMT_CONSTEXPR20 void subtract_bigits(int index, bigit other, bigit& borrow) {
- auto result = static_cast<double_bigit>((*this)[index]) - other - borrow;
- (*this)[index] = static_cast<bigit>(result);
- borrow = static_cast<bigit>(result >> (bigit_bits * 2 - 1));
- }
-
- FMT_CONSTEXPR20 void remove_leading_zeros() {
- int num_bigits = static_cast<int>(bigits_.size()) - 1;
- while (num_bigits > 0 && (*this)[num_bigits] == 0) --num_bigits;
- bigits_.resize(to_unsigned(num_bigits + 1));
- }
-
- // Computes *this -= other assuming aligned bigints and *this >= other.
- FMT_CONSTEXPR20 void subtract_aligned(const bigint& other) {
- FMT_ASSERT(other.exp_ >= exp_, "unaligned bigints");
- FMT_ASSERT(compare(*this, other) >= 0, "");
- bigit borrow = 0;
- int i = other.exp_ - exp_;
- for (size_t j = 0, n = other.bigits_.size(); j != n; ++i, ++j)
- subtract_bigits(i, other.bigits_[j], borrow);
- while (borrow > 0) subtract_bigits(i, 0, borrow);
- remove_leading_zeros();
- }
-
- FMT_CONSTEXPR20 void multiply(uint32_t value) {
- const double_bigit wide_value = value;
- bigit carry = 0;
- for (size_t i = 0, n = bigits_.size(); i < n; ++i) {
- double_bigit result = bigits_[i] * wide_value + carry;
- bigits_[i] = static_cast<bigit>(result);
- carry = static_cast<bigit>(result >> bigit_bits);
- }
- if (carry != 0) bigits_.push_back(carry);
- }
-
- template <typename UInt, FMT_ENABLE_IF(std::is_same<UInt, uint64_t>::value ||
- std::is_same<UInt, uint128_t>::value)>
- FMT_CONSTEXPR20 void multiply(UInt value) {
- using half_uint =
- conditional_t<std::is_same<UInt, uint128_t>::value, uint64_t, uint32_t>;
- const int shift = num_bits<half_uint>() - bigit_bits;
- const UInt lower = static_cast<half_uint>(value);
- const UInt upper = value >> num_bits<half_uint>();
- UInt carry = 0;
- for (size_t i = 0, n = bigits_.size(); i < n; ++i) {
- UInt result = lower * bigits_[i] + static_cast<bigit>(carry);
- carry = (upper * bigits_[i] << shift) + (result >> bigit_bits) +
- (carry >> bigit_bits);
- bigits_[i] = static_cast<bigit>(result);
- }
- while (carry != 0) {
- bigits_.push_back(static_cast<bigit>(carry));
- carry >>= bigit_bits;
- }
- }
-
- template <typename UInt, FMT_ENABLE_IF(std::is_same<UInt, uint64_t>::value ||
- std::is_same<UInt, uint128_t>::value)>
- FMT_CONSTEXPR20 void assign(UInt n) {
- size_t num_bigits = 0;
- do {
- bigits_[num_bigits++] = static_cast<bigit>(n);
- n >>= bigit_bits;
- } while (n != 0);
- bigits_.resize(num_bigits);
- exp_ = 0;
- }
-
- public:
- FMT_CONSTEXPR20 bigint() : exp_(0) {}
- explicit bigint(uint64_t n) { assign(n); }
-
- bigint(const bigint&) = delete;
- void operator=(const bigint&) = delete;
-
- FMT_CONSTEXPR20 void assign(const bigint& other) {
- auto size = other.bigits_.size();
- bigits_.resize(size);
- auto data = other.bigits_.data();
- copy_str<bigit>(data, data + size, bigits_.data());
- exp_ = other.exp_;
- }
-
- template <typename Int> FMT_CONSTEXPR20 void operator=(Int n) {
- FMT_ASSERT(n > 0, "");
- assign(uint64_or_128_t<Int>(n));
- }
-
- FMT_CONSTEXPR20 auto num_bigits() const -> int {
- return static_cast<int>(bigits_.size()) + exp_;
- }
-
- FMT_NOINLINE FMT_CONSTEXPR20 auto operator<<=(int shift) -> bigint& {
- FMT_ASSERT(shift >= 0, "");
- exp_ += shift / bigit_bits;
- shift %= bigit_bits;
- if (shift == 0) return *this;
- bigit carry = 0;
- for (size_t i = 0, n = bigits_.size(); i < n; ++i) {
- bigit c = bigits_[i] >> (bigit_bits - shift);
- bigits_[i] = (bigits_[i] << shift) + carry;
- carry = c;
- }
- if (carry != 0) bigits_.push_back(carry);
- return *this;
- }
-
- template <typename Int>
- FMT_CONSTEXPR20 auto operator*=(Int value) -> bigint& {
- FMT_ASSERT(value > 0, "");
- multiply(uint32_or_64_or_128_t<Int>(value));
- return *this;
- }
-
- friend FMT_CONSTEXPR20 auto compare(const bigint& lhs, const bigint& rhs)
- -> int {
- int num_lhs_bigits = lhs.num_bigits(), num_rhs_bigits = rhs.num_bigits();
- if (num_lhs_bigits != num_rhs_bigits)
- return num_lhs_bigits > num_rhs_bigits ? 1 : -1;
- int i = static_cast<int>(lhs.bigits_.size()) - 1;
- int j = static_cast<int>(rhs.bigits_.size()) - 1;
- int end = i - j;
- if (end < 0) end = 0;
- for (; i >= end; --i, --j) {
- bigit lhs_bigit = lhs[i], rhs_bigit = rhs[j];
- if (lhs_bigit != rhs_bigit) return lhs_bigit > rhs_bigit ? 1 : -1;
- }
- if (i != j) return i > j ? 1 : -1;
- return 0;
- }
-
- // Returns compare(lhs1 + lhs2, rhs).
- friend FMT_CONSTEXPR20 auto add_compare(const bigint& lhs1,
- const bigint& lhs2, const bigint& rhs)
- -> int {
- auto minimum = [](int a, int b) { return a < b ? a : b; };
- auto maximum = [](int a, int b) { return a > b ? a : b; };
- int max_lhs_bigits = maximum(lhs1.num_bigits(), lhs2.num_bigits());
- int num_rhs_bigits = rhs.num_bigits();
- if (max_lhs_bigits + 1 < num_rhs_bigits) return -1;
- if (max_lhs_bigits > num_rhs_bigits) return 1;
- auto get_bigit = [](const bigint& n, int i) -> bigit {
- return i >= n.exp_ && i < n.num_bigits() ? n[i - n.exp_] : 0;
- };
- double_bigit borrow = 0;
- int min_exp = minimum(minimum(lhs1.exp_, lhs2.exp_), rhs.exp_);
- for (int i = num_rhs_bigits - 1; i >= min_exp; --i) {
- double_bigit sum =
- static_cast<double_bigit>(get_bigit(lhs1, i)) + get_bigit(lhs2, i);
- bigit rhs_bigit = get_bigit(rhs, i);
- if (sum > rhs_bigit + borrow) return 1;
- borrow = rhs_bigit + borrow - sum;
- if (borrow > 1) return -1;
- borrow <<= bigit_bits;
- }
- return borrow != 0 ? -1 : 0;
- }
-
- // Assigns pow(10, exp) to this bigint.
- FMT_CONSTEXPR20 void assign_pow10(int exp) {
- FMT_ASSERT(exp >= 0, "");
- if (exp == 0) return *this = 1;
- // Find the top bit.
- int bitmask = 1;
- while (exp >= bitmask) bitmask <<= 1;
- bitmask >>= 1;
- // pow(10, exp) = pow(5, exp) * pow(2, exp). First compute pow(5, exp) by
- // repeated squaring and multiplication.
- *this = 5;
- bitmask >>= 1;
- while (bitmask != 0) {
- square();
- if ((exp & bitmask) != 0) *this *= 5;
- bitmask >>= 1;
- }
- *this <<= exp; // Multiply by pow(2, exp) by shifting.
- }
-
- FMT_CONSTEXPR20 void square() {
- int num_bigits = static_cast<int>(bigits_.size());
- int num_result_bigits = 2 * num_bigits;
- basic_memory_buffer<bigit, bigits_capacity> n(std::move(bigits_));
- bigits_.resize(to_unsigned(num_result_bigits));
- auto sum = uint128_t();
- for (int bigit_index = 0; bigit_index < num_bigits; ++bigit_index) {
- // Compute bigit at position bigit_index of the result by adding
- // cross-product terms n[i] * n[j] such that i + j == bigit_index.
- for (int i = 0, j = bigit_index; j >= 0; ++i, --j) {
- // Most terms are multiplied twice which can be optimized in the future.
- sum += static_cast<double_bigit>(n[i]) * n[j];
- }
- (*this)[bigit_index] = static_cast<bigit>(sum);
- sum >>= num_bits<bigit>(); // Compute the carry.
- }
- // Do the same for the top half.
- for (int bigit_index = num_bigits; bigit_index < num_result_bigits;
- ++bigit_index) {
- for (int j = num_bigits - 1, i = bigit_index - j; i < num_bigits;)
- sum += static_cast<double_bigit>(n[i++]) * n[j--];
- (*this)[bigit_index] = static_cast<bigit>(sum);
- sum >>= num_bits<bigit>();
- }
- remove_leading_zeros();
- exp_ *= 2;
- }
-
- // If this bigint has a bigger exponent than other, adds trailing zero to make
- // exponents equal. This simplifies some operations such as subtraction.
- FMT_CONSTEXPR20 void align(const bigint& other) {
- int exp_difference = exp_ - other.exp_;
- if (exp_difference <= 0) return;
- int num_bigits = static_cast<int>(bigits_.size());
- bigits_.resize(to_unsigned(num_bigits + exp_difference));
- for (int i = num_bigits - 1, j = i + exp_difference; i >= 0; --i, --j)
- bigits_[j] = bigits_[i];
- std::uninitialized_fill_n(bigits_.data(), exp_difference, 0u);
- exp_ -= exp_difference;
- }
-
- // Divides this bignum by divisor, assigning the remainder to this and
- // returning the quotient.
- FMT_CONSTEXPR20 auto divmod_assign(const bigint& divisor) -> int {
- FMT_ASSERT(this != &divisor, "");
- if (compare(*this, divisor) < 0) return 0;
- FMT_ASSERT(divisor.bigits_[divisor.bigits_.size() - 1u] != 0, "");
- align(divisor);
- int quotient = 0;
- do {
- subtract_aligned(divisor);
- ++quotient;
- } while (compare(*this, divisor) >= 0);
- return quotient;
- }
-};
-
-// format_dragon flags.
-enum dragon {
- predecessor_closer = 1,
- fixup = 2, // Run fixup to correct exp10 which can be off by one.
- fixed = 4,
-};
-
-// Formats a floating-point number using a variation of the Fixed-Precision
-// Positive Floating-Point Printout ((FPP)^2) algorithm by Steele & White:
-// https://fmt.dev/papers/p372-steele.pdf.
-FMT_CONSTEXPR20 inline void format_dragon(basic_fp<uint128_t> value,
- unsigned flags, int num_digits,
- buffer<char>& buf, int& exp10) {
- bigint numerator; // 2 * R in (FPP)^2.
- bigint denominator; // 2 * S in (FPP)^2.
- // lower and upper are differences between value and corresponding boundaries.
- bigint lower; // (M^- in (FPP)^2).
- bigint upper_store; // upper's value if different from lower.
- bigint* upper = nullptr; // (M^+ in (FPP)^2).
- // Shift numerator and denominator by an extra bit or two (if lower boundary
- // is closer) to make lower and upper integers. This eliminates multiplication
- // by 2 during later computations.
- bool is_predecessor_closer = (flags & dragon::predecessor_closer) != 0;
- int shift = is_predecessor_closer ? 2 : 1;
- if (value.e >= 0) {
- numerator = value.f;
- numerator <<= value.e + shift;
- lower = 1;
- lower <<= value.e;
- if (is_predecessor_closer) {
- upper_store = 1;
- upper_store <<= value.e + 1;
- upper = &upper_store;
- }
- denominator.assign_pow10(exp10);
- denominator <<= shift;
- } else if (exp10 < 0) {
- numerator.assign_pow10(-exp10);
- lower.assign(numerator);
- if (is_predecessor_closer) {
- upper_store.assign(numerator);
- upper_store <<= 1;
- upper = &upper_store;
- }
- numerator *= value.f;
- numerator <<= shift;
- denominator = 1;
- denominator <<= shift - value.e;
- } else {
- numerator = value.f;
- numerator <<= shift;
- denominator.assign_pow10(exp10);
- denominator <<= shift - value.e;
- lower = 1;
- if (is_predecessor_closer) {
- upper_store = 1ULL << 1;
- upper = &upper_store;
- }
- }
- int even = static_cast<int>((value.f & 1) == 0);
- if (!upper) upper = &lower;
- bool shortest = num_digits < 0;
- if ((flags & dragon::fixup) != 0) {
- if (add_compare(numerator, *upper, denominator) + even <= 0) {
- --exp10;
- numerator *= 10;
- if (num_digits < 0) {
- lower *= 10;
- if (upper != &lower) *upper *= 10;
- }
- }
- if ((flags & dragon::fixed) != 0) adjust_precision(num_digits, exp10 + 1);
- }
- // Invariant: value == (numerator / denominator) * pow(10, exp10).
- if (shortest) {
- // Generate the shortest representation.
- num_digits = 0;
- char* data = buf.data();
- for (;;) {
- int digit = numerator.divmod_assign(denominator);
- bool low = compare(numerator, lower) - even < 0; // numerator <[=] lower.
- // numerator + upper >[=] pow10:
- bool high = add_compare(numerator, *upper, denominator) + even > 0;
- data[num_digits++] = static_cast<char>('0' + digit);
- if (low || high) {
- if (!low) {
- ++data[num_digits - 1];
- } else if (high) {
- int result = add_compare(numerator, numerator, denominator);
- // Round half to even.
- if (result > 0 || (result == 0 && (digit % 2) != 0))
- ++data[num_digits - 1];
- }
- buf.try_resize(to_unsigned(num_digits));
- exp10 -= num_digits - 1;
- return;
- }
- numerator *= 10;
- lower *= 10;
- if (upper != &lower) *upper *= 10;
- }
- }
- // Generate the given number of digits.
- exp10 -= num_digits - 1;
- if (num_digits <= 0) {
- denominator *= 10;
- auto digit = add_compare(numerator, numerator, denominator) > 0 ? '1' : '0';
- buf.push_back(digit);
- return;
- }
- buf.try_resize(to_unsigned(num_digits));
- for (int i = 0; i < num_digits - 1; ++i) {
- int digit = numerator.divmod_assign(denominator);
- buf[i] = static_cast<char>('0' + digit);
- numerator *= 10;
- }
- int digit = numerator.divmod_assign(denominator);
- auto result = add_compare(numerator, numerator, denominator);
- if (result > 0 || (result == 0 && (digit % 2) != 0)) {
- if (digit == 9) {
- const auto overflow = '0' + 10;
- buf[num_digits - 1] = overflow;
- // Propagate the carry.
- for (int i = num_digits - 1; i > 0 && buf[i] == overflow; --i) {
- buf[i] = '0';
- ++buf[i - 1];
- }
- if (buf[0] == overflow) {
- buf[0] = '1';
- if ((flags & dragon::fixed) != 0)
- buf.push_back('0');
- else
- ++exp10;
- }
- return;
- }
- ++digit;
- }
- buf[num_digits - 1] = static_cast<char>('0' + digit);
-}
-
-// Formats a floating-point number using the hexfloat format.
-template <typename Float, FMT_ENABLE_IF(!is_double_double<Float>::value)>
-FMT_CONSTEXPR20 void format_hexfloat(Float value, int precision,
- float_specs specs, buffer<char>& buf) {
- // float is passed as double to reduce the number of instantiations and to
- // simplify implementation.
- static_assert(!std::is_same<Float, float>::value, "");
-
- using info = dragonbox::float_info<Float>;
-
- // Assume Float is in the format [sign][exponent][significand].
- using carrier_uint = typename info::carrier_uint;
-
- constexpr auto num_float_significand_bits =
- detail::num_significand_bits<Float>();
-
- basic_fp<carrier_uint> f(value);
- f.e += num_float_significand_bits;
- if (!has_implicit_bit<Float>()) --f.e;
-
- constexpr auto num_fraction_bits =
- num_float_significand_bits + (has_implicit_bit<Float>() ? 1 : 0);
- constexpr auto num_xdigits = (num_fraction_bits + 3) / 4;
-
- constexpr auto leading_shift = ((num_xdigits - 1) * 4);
- const auto leading_mask = carrier_uint(0xF) << leading_shift;
- const auto leading_xdigit =
- static_cast<uint32_t>((f.f & leading_mask) >> leading_shift);
- if (leading_xdigit > 1) f.e -= (32 - countl_zero(leading_xdigit) - 1);
-
- int print_xdigits = num_xdigits - 1;
- if (precision >= 0 && print_xdigits > precision) {
- const int shift = ((print_xdigits - precision - 1) * 4);
- const auto mask = carrier_uint(0xF) << shift;
- const auto v = static_cast<uint32_t>((f.f & mask) >> shift);
-
- if (v >= 8) {
- const auto inc = carrier_uint(1) << (shift + 4);
- f.f += inc;
- f.f &= ~(inc - 1);
- }
-
- // Check long double overflow
- if (!has_implicit_bit<Float>()) {
- const auto implicit_bit = carrier_uint(1) << num_float_significand_bits;
- if ((f.f & implicit_bit) == implicit_bit) {
- f.f >>= 4;
- f.e += 4;
- }
- }
-
- print_xdigits = precision;
- }
-
- char xdigits[num_bits<carrier_uint>() / 4];
- detail::fill_n(xdigits, sizeof(xdigits), '0');
- format_uint<4>(xdigits, f.f, num_xdigits, specs.upper);
-
- // Remove zero tail
- while (print_xdigits > 0 && xdigits[print_xdigits] == '0') --print_xdigits;
-
- buf.push_back('0');
- buf.push_back(specs.upper ? 'X' : 'x');
- buf.push_back(xdigits[0]);
- if (specs.showpoint || print_xdigits > 0 || print_xdigits < precision)
- buf.push_back('.');
- buf.append(xdigits + 1, xdigits + 1 + print_xdigits);
- for (; print_xdigits < precision; ++print_xdigits) buf.push_back('0');
-
- buf.push_back(specs.upper ? 'P' : 'p');
-
- uint32_t abs_e;
- if (f.e < 0) {
- buf.push_back('-');
- abs_e = static_cast<uint32_t>(-f.e);
- } else {
- buf.push_back('+');
- abs_e = static_cast<uint32_t>(f.e);
- }
- format_decimal<char>(appender(buf), abs_e, detail::count_digits(abs_e));
-}
-
-template <typename Float, FMT_ENABLE_IF(is_double_double<Float>::value)>
-FMT_CONSTEXPR20 void format_hexfloat(Float value, int precision,
- float_specs specs, buffer<char>& buf) {
- format_hexfloat(static_cast<double>(value), precision, specs, buf);
-}
-
-constexpr auto fractional_part_rounding_thresholds(int index) -> uint32_t {
- // For checking rounding thresholds.
- // The kth entry is chosen to be the smallest integer such that the
- // upper 32-bits of 10^(k+1) times it is strictly bigger than 5 * 10^k.
- // It is equal to ceil(2^31 + 2^32/10^(k + 1)).
- // These are stored in a string literal because we cannot have static arrays
- // in constexpr functions and non-static ones are poorly optimized.
- return U"\x9999999a\x828f5c29\x80418938\x80068db9\x8000a7c6\x800010c7"
- U"\x800001ae\x8000002b"[index];
-}
-
-template <typename Float>
-FMT_CONSTEXPR20 auto format_float(Float value, int precision, float_specs specs,
- buffer<char>& buf) -> int {
- // float is passed as double to reduce the number of instantiations.
- static_assert(!std::is_same<Float, float>::value, "");
- FMT_ASSERT(value >= 0, "value is negative");
- auto converted_value = convert_float(value);
-
- const bool fixed = specs.format == float_format::fixed;
- if (value <= 0) { // <= instead of == to silence a warning.
- if (precision <= 0 || !fixed) {
- buf.push_back('0');
- return 0;
- }
- buf.try_resize(to_unsigned(precision));
- fill_n(buf.data(), precision, '0');
- return -precision;
- }
-
- int exp = 0;
- bool use_dragon = true;
- unsigned dragon_flags = 0;
- if (!is_fast_float<Float>() || is_constant_evaluated()) {
- const auto inv_log2_10 = 0.3010299956639812; // 1 / log2(10)
- using info = dragonbox::float_info<decltype(converted_value)>;
- const auto f = basic_fp<typename info::carrier_uint>(converted_value);
- // Compute exp, an approximate power of 10, such that
- // 10^(exp - 1) <= value < 10^exp or 10^exp <= value < 10^(exp + 1).
- // This is based on log10(value) == log2(value) / log2(10) and approximation
- // of log2(value) by e + num_fraction_bits idea from double-conversion.
- auto e = (f.e + count_digits<1>(f.f) - 1) * inv_log2_10 - 1e-10;
- exp = static_cast<int>(e);
- if (e > exp) ++exp; // Compute ceil.
- dragon_flags = dragon::fixup;
- } else if (precision < 0) {
- // Use Dragonbox for the shortest format.
- if (specs.binary32) {
- auto dec = dragonbox::to_decimal(static_cast<float>(value));
- write<char>(buffer_appender<char>(buf), dec.significand);
- return dec.exponent;
- }
- auto dec = dragonbox::to_decimal(static_cast<double>(value));
- write<char>(buffer_appender<char>(buf), dec.significand);
- return dec.exponent;
- } else {
- // Extract significand bits and exponent bits.
- using info = dragonbox::float_info<double>;
- auto br = bit_cast<uint64_t>(static_cast<double>(value));
-
- const uint64_t significand_mask =
- (static_cast<uint64_t>(1) << num_significand_bits<double>()) - 1;
- uint64_t significand = (br & significand_mask);
- int exponent = static_cast<int>((br & exponent_mask<double>()) >>
- num_significand_bits<double>());
-
- if (exponent != 0) { // Check if normal.
- exponent -= exponent_bias<double>() + num_significand_bits<double>();
- significand |=
- (static_cast<uint64_t>(1) << num_significand_bits<double>());
- significand <<= 1;
- } else {
- // Normalize subnormal inputs.
- FMT_ASSERT(significand != 0, "zeros should not appear here");
- int shift = countl_zero(significand);
- FMT_ASSERT(shift >= num_bits<uint64_t>() - num_significand_bits<double>(),
- "");
- shift -= (num_bits<uint64_t>() - num_significand_bits<double>() - 2);
- exponent = (std::numeric_limits<double>::min_exponent -
- num_significand_bits<double>()) -
- shift;
- significand <<= shift;
- }
-
- // Compute the first several nonzero decimal significand digits.
- // We call the number we get the first segment.
- const int k = info::kappa - dragonbox::floor_log10_pow2(exponent);
- exp = -k;
- const int beta = exponent + dragonbox::floor_log2_pow10(k);
- uint64_t first_segment;
- bool has_more_segments;
- int digits_in_the_first_segment;
- {
- const auto r = dragonbox::umul192_upper128(
- significand << beta, dragonbox::get_cached_power(k));
- first_segment = r.high();
- has_more_segments = r.low() != 0;
-
- // The first segment can have 18 ~ 19 digits.
- if (first_segment >= 1000000000000000000ULL) {
- digits_in_the_first_segment = 19;
- } else {
- // When it is of 18-digits, we align it to 19-digits by adding a bogus
- // zero at the end.
- digits_in_the_first_segment = 18;
- first_segment *= 10;
- }
- }
-
- // Compute the actual number of decimal digits to print.
- if (fixed) adjust_precision(precision, exp + digits_in_the_first_segment);
-
- // Use Dragon4 only when there might be not enough digits in the first
- // segment.
- if (digits_in_the_first_segment > precision) {
- use_dragon = false;
-
- if (precision <= 0) {
- exp += digits_in_the_first_segment;
-
- if (precision < 0) {
- // Nothing to do, since all we have are just leading zeros.
- buf.try_resize(0);
- } else {
- // We may need to round-up.
- buf.try_resize(1);
- if ((first_segment | static_cast<uint64_t>(has_more_segments)) >
- 5000000000000000000ULL) {
- buf[0] = '1';
- } else {
- buf[0] = '0';
- }
- }
- } // precision <= 0
- else {
- exp += digits_in_the_first_segment - precision;
-
- // When precision > 0, we divide the first segment into three
- // subsegments, each with 9, 9, and 0 ~ 1 digits so that each fits
- // in 32-bits which usually allows faster calculation than in
- // 64-bits. Since some compiler (e.g. MSVC) doesn't know how to optimize
- // division-by-constant for large 64-bit divisors, we do it here
- // manually. The magic number 7922816251426433760 below is equal to
- // ceil(2^(64+32) / 10^10).
- const uint32_t first_subsegment = static_cast<uint32_t>(
- dragonbox::umul128_upper64(first_segment, 7922816251426433760ULL) >>
- 32);
- const uint64_t second_third_subsegments =
- first_segment - first_subsegment * 10000000000ULL;
-
- uint64_t prod;
- uint32_t digits;
- bool should_round_up;
- int number_of_digits_to_print = precision > 9 ? 9 : precision;
-
- // Print a 9-digits subsegment, either the first or the second.
- auto print_subsegment = [&](uint32_t subsegment, char* buffer) {
- int number_of_digits_printed = 0;
-
- // If we want to print an odd number of digits from the subsegment,
- if ((number_of_digits_to_print & 1) != 0) {
- // Convert to 64-bit fixed-point fractional form with 1-digit
- // integer part. The magic number 720575941 is a good enough
- // approximation of 2^(32 + 24) / 10^8; see
- // https://jk-jeon.github.io/posts/2022/12/fixed-precision-formatting/#fixed-length-case
- // for details.
- prod = ((subsegment * static_cast<uint64_t>(720575941)) >> 24) + 1;
- digits = static_cast<uint32_t>(prod >> 32);
- *buffer = static_cast<char>('0' + digits);
- number_of_digits_printed++;
- }
- // If we want to print an even number of digits from the
- // first_subsegment,
- else {
- // Convert to 64-bit fixed-point fractional form with 2-digits
- // integer part. The magic number 450359963 is a good enough
- // approximation of 2^(32 + 20) / 10^7; see
- // https://jk-jeon.github.io/posts/2022/12/fixed-precision-formatting/#fixed-length-case
- // for details.
- prod = ((subsegment * static_cast<uint64_t>(450359963)) >> 20) + 1;
- digits = static_cast<uint32_t>(prod >> 32);
- copy2(buffer, digits2(digits));
- number_of_digits_printed += 2;
- }
-
- // Print all digit pairs.
- while (number_of_digits_printed < number_of_digits_to_print) {
- prod = static_cast<uint32_t>(prod) * static_cast<uint64_t>(100);
- digits = static_cast<uint32_t>(prod >> 32);
- copy2(buffer + number_of_digits_printed, digits2(digits));
- number_of_digits_printed += 2;
- }
- };
-
- // Print first subsegment.
- print_subsegment(first_subsegment, buf.data());
-
- // Perform rounding if the first subsegment is the last subsegment to
- // print.
- if (precision <= 9) {
- // Rounding inside the subsegment.
- // We round-up if:
- // - either the fractional part is strictly larger than 1/2, or
- // - the fractional part is exactly 1/2 and the last digit is odd.
- // We rely on the following observations:
- // - If fractional_part >= threshold, then the fractional part is
- // strictly larger than 1/2.
- // - If the MSB of fractional_part is set, then the fractional part
- // must be at least 1/2.
- // - When the MSB of fractional_part is set, either
- // second_third_subsegments being nonzero or has_more_segments
- // being true means there are further digits not printed, so the
- // fractional part is strictly larger than 1/2.
- if (precision < 9) {
- uint32_t fractional_part = static_cast<uint32_t>(prod);
- should_round_up =
- fractional_part >= fractional_part_rounding_thresholds(
- 8 - number_of_digits_to_print) ||
- ((fractional_part >> 31) &
- ((digits & 1) | (second_third_subsegments != 0) |
- has_more_segments)) != 0;
- }
- // Rounding at the subsegment boundary.
- // In this case, the fractional part is at least 1/2 if and only if
- // second_third_subsegments >= 5000000000ULL, and is strictly larger
- // than 1/2 if we further have either second_third_subsegments >
- // 5000000000ULL or has_more_segments == true.
- else {
- should_round_up = second_third_subsegments > 5000000000ULL ||
- (second_third_subsegments == 5000000000ULL &&
- ((digits & 1) != 0 || has_more_segments));
- }
- }
- // Otherwise, print the second subsegment.
- else {
- // Compilers are not aware of how to leverage the maximum value of
- // second_third_subsegments to find out a better magic number which
- // allows us to eliminate an additional shift. 1844674407370955162 =
- // ceil(2^64/10) < ceil(2^64*(10^9/(10^10 - 1))).
- const uint32_t second_subsegment =
- static_cast<uint32_t>(dragonbox::umul128_upper64(
- second_third_subsegments, 1844674407370955162ULL));
- const uint32_t third_subsegment =
- static_cast<uint32_t>(second_third_subsegments) -
- second_subsegment * 10;
-
- number_of_digits_to_print = precision - 9;
- print_subsegment(second_subsegment, buf.data() + 9);
-
- // Rounding inside the subsegment.
- if (precision < 18) {
- // The condition third_subsegment != 0 implies that the segment was
- // of 19 digits, so in this case the third segment should be
- // consisting of a genuine digit from the input.
- uint32_t fractional_part = static_cast<uint32_t>(prod);
- should_round_up =
- fractional_part >= fractional_part_rounding_thresholds(
- 8 - number_of_digits_to_print) ||
- ((fractional_part >> 31) &
- ((digits & 1) | (third_subsegment != 0) |
- has_more_segments)) != 0;
- }
- // Rounding at the subsegment boundary.
- else {
- // In this case, the segment must be of 19 digits, thus
- // the third subsegment should be consisting of a genuine digit from
- // the input.
- should_round_up = third_subsegment > 5 ||
- (third_subsegment == 5 &&
- ((digits & 1) != 0 || has_more_segments));
- }
- }
-
- // Round-up if necessary.
- if (should_round_up) {
- ++buf[precision - 1];
- for (int i = precision - 1; i > 0 && buf[i] > '9'; --i) {
- buf[i] = '0';
- ++buf[i - 1];
- }
- if (buf[0] > '9') {
- buf[0] = '1';
- if (fixed)
- buf[precision++] = '0';
- else
- ++exp;
- }
- }
- buf.try_resize(to_unsigned(precision));
- }
- } // if (digits_in_the_first_segment > precision)
- else {
- // Adjust the exponent for its use in Dragon4.
- exp += digits_in_the_first_segment - 1;
- }
- }
- if (use_dragon) {
- auto f = basic_fp<uint128_t>();
- bool is_predecessor_closer = specs.binary32
- ? f.assign(static_cast<float>(value))
- : f.assign(converted_value);
- if (is_predecessor_closer) dragon_flags |= dragon::predecessor_closer;
- if (fixed) dragon_flags |= dragon::fixed;
- // Limit precision to the maximum possible number of significant digits in
- // an IEEE754 double because we don't need to generate zeros.
- const int max_double_digits = 767;
- if (precision > max_double_digits) precision = max_double_digits;
- format_dragon(f, dragon_flags, precision, buf, exp);
- }
- if (!fixed && !specs.showpoint) {
- // Remove trailing zeros.
- auto num_digits = buf.size();
- while (num_digits > 0 && buf[num_digits - 1] == '0') {
- --num_digits;
- ++exp;
- }
- buf.try_resize(num_digits);
- }
- return exp;
-}
-template <typename Char, typename OutputIt, typename T>
-FMT_CONSTEXPR20 auto write_float(OutputIt out, T value,
- format_specs<Char> specs, locale_ref loc)
- -> OutputIt {
- float_specs fspecs = parse_float_type_spec(specs);
- fspecs.sign = specs.sign;
- if (detail::signbit(value)) { // value < 0 is false for NaN so use signbit.
- fspecs.sign = sign::minus;
- value = -value;
- } else if (fspecs.sign == sign::minus) {
- fspecs.sign = sign::none;
- }
-
- if (!detail::isfinite(value))
- return write_nonfinite(out, detail::isnan(value), specs, fspecs);
-
- if (specs.align == align::numeric && fspecs.sign) {
- auto it = reserve(out, 1);
- *it++ = detail::sign<Char>(fspecs.sign);
- out = base_iterator(out, it);
- fspecs.sign = sign::none;
- if (specs.width != 0) --specs.width;
- }
-
- memory_buffer buffer;
- if (fspecs.format == float_format::hex) {
- if (fspecs.sign) buffer.push_back(detail::sign<char>(fspecs.sign));
- format_hexfloat(convert_float(value), specs.precision, fspecs, buffer);
- return write_bytes<align::right>(out, {buffer.data(), buffer.size()},
- specs);
- }
- int precision = specs.precision >= 0 || specs.type == presentation_type::none
- ? specs.precision
- : 6;
- if (fspecs.format == float_format::exp) {
- if (precision == max_value<int>())
- throw_format_error("number is too big");
- else
- ++precision;
- } else if (fspecs.format != float_format::fixed && precision == 0) {
- precision = 1;
- }
- if (const_check(std::is_same<T, float>())) fspecs.binary32 = true;
- int exp = format_float(convert_float(value), precision, fspecs, buffer);
- fspecs.precision = precision;
- auto f = big_decimal_fp{buffer.data(), static_cast<int>(buffer.size()), exp};
- return write_float(out, f, specs, fspecs, loc);
-}
-
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(is_floating_point<T>::value)>
-FMT_CONSTEXPR20 auto write(OutputIt out, T value, format_specs<Char> specs,
- locale_ref loc = {}) -> OutputIt {
- if (const_check(!is_supported_floating_point(value))) return out;
- return specs.localized && write_loc(out, value, specs, loc)
- ? out
- : write_float(out, value, specs, loc);
-}
-
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(is_fast_float<T>::value)>
-FMT_CONSTEXPR20 auto write(OutputIt out, T value) -> OutputIt {
- if (is_constant_evaluated()) return write(out, value, format_specs<Char>());
- if (const_check(!is_supported_floating_point(value))) return out;
-
- auto fspecs = float_specs();
- if (detail::signbit(value)) {
- fspecs.sign = sign::minus;
- value = -value;
- }
-
- constexpr auto specs = format_specs<Char>();
- using floaty = conditional_t<std::is_same<T, long double>::value, double, T>;
- using floaty_uint = typename dragonbox::float_info<floaty>::carrier_uint;
- floaty_uint mask = exponent_mask<floaty>();
- if ((bit_cast<floaty_uint>(value) & mask) == mask)
- return write_nonfinite(out, std::isnan(value), specs, fspecs);
-
- auto dec = dragonbox::to_decimal(static_cast<floaty>(value));
- return write_float(out, dec, specs, fspecs, {});
-}
-
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(is_floating_point<T>::value &&
- !is_fast_float<T>::value)>
-inline auto write(OutputIt out, T value) -> OutputIt {
- return write(out, value, format_specs<Char>());
-}
-
-template <typename Char, typename OutputIt>
-auto write(OutputIt out, monostate, format_specs<Char> = {}, locale_ref = {})
- -> OutputIt {
- FMT_ASSERT(false, "");
- return out;
-}
-
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write(OutputIt out, basic_string_view<Char> value)
- -> OutputIt {
- auto it = reserve(out, value.size());
- it = copy_str_noinline<Char>(value.begin(), value.end(), it);
- return base_iterator(out, it);
-}
-
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(is_string<T>::value)>
-constexpr auto write(OutputIt out, const T& value) -> OutputIt {
- return write<Char>(out, to_string_view(value));
-}
-
-// FMT_ENABLE_IF() condition separated to workaround an MSVC bug.
-template <
- typename Char, typename OutputIt, typename T,
- bool check =
- std::is_enum<T>::value && !std::is_same<T, Char>::value &&
- mapped_type_constant<T, basic_format_context<OutputIt, Char>>::value !=
- type::custom_type,
- FMT_ENABLE_IF(check)>
-FMT_CONSTEXPR auto write(OutputIt out, T value) -> OutputIt {
- return write<Char>(out, static_cast<underlying_t<T>>(value));
-}
-
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(std::is_same<T, bool>::value)>
-FMT_CONSTEXPR auto write(OutputIt out, T value,
- const format_specs<Char>& specs = {}, locale_ref = {})
- -> OutputIt {
- return specs.type != presentation_type::none &&
- specs.type != presentation_type::string
- ? write(out, value ? 1 : 0, specs, {})
- : write_bytes(out, value ? "true" : "false", specs);
-}
-
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR auto write(OutputIt out, Char value) -> OutputIt {
- auto it = reserve(out, 1);
- *it++ = value;
- return base_iterator(out, it);
-}
-
-template <typename Char, typename OutputIt>
-FMT_CONSTEXPR_CHAR_TRAITS auto write(OutputIt out, const Char* value)
- -> OutputIt {
- if (value) return write(out, basic_string_view<Char>(value));
- throw_format_error("string pointer is null");
- return out;
-}
-
-template <typename Char, typename OutputIt, typename T,
- FMT_ENABLE_IF(std::is_same<T, void>::value)>
-auto write(OutputIt out, const T* value, const format_specs<Char>& specs = {},
- locale_ref = {}) -> OutputIt {
- return write_ptr<Char>(out, bit_cast<uintptr_t>(value), &specs);
-}
-
-// A write overload that handles implicit conversions.
-template <typename Char, typename OutputIt, typename T,
- typename Context = basic_format_context<OutputIt, Char>>
-FMT_CONSTEXPR auto write(OutputIt out, const T& value) -> enable_if_t<
- std::is_class<T>::value && !is_string<T>::value &&
- !is_floating_point<T>::value && !std::is_same<T, Char>::value &&
- !std::is_same<T, remove_cvref_t<decltype(arg_mapper<Context>().map(
- value))>>::value,
- OutputIt> {
- return write<Char>(out, arg_mapper<Context>().map(value));
-}
-
-template <typename Char, typename OutputIt, typename T,
- typename Context = basic_format_context<OutputIt, Char>>
-FMT_CONSTEXPR auto write(OutputIt out, const T& value)
- -> enable_if_t<mapped_type_constant<T, Context>::value == type::custom_type,
- OutputIt> {
- auto formatter = typename Context::template formatter_type<T>();
- auto parse_ctx = typename Context::parse_context_type({});
- formatter.parse(parse_ctx);
- auto ctx = Context(out, {}, {});
- return formatter.format(value, ctx);
-}
-
-// An argument visitor that formats the argument and writes it via the output
-// iterator. It's a class and not a generic lambda for compatibility with C++11.
-template <typename Char> struct default_arg_formatter {
- using iterator = buffer_appender<Char>;
- using context = buffer_context<Char>;
-
- iterator out;
- basic_format_args<context> args;
- locale_ref loc;
-
- template <typename T> auto operator()(T value) -> iterator {
- return write<Char>(out, value);
- }
- auto operator()(typename basic_format_arg<context>::handle h) -> iterator {
- basic_format_parse_context<Char> parse_ctx({});
- context format_ctx(out, args, loc);
- h.format(parse_ctx, format_ctx);
- return format_ctx.out();
- }
-};
-
-template <typename Char> struct arg_formatter {
- using iterator = buffer_appender<Char>;
- using context = buffer_context<Char>;
-
- iterator out;
- const format_specs<Char>& specs;
- locale_ref locale;
-
- template <typename T>
- FMT_CONSTEXPR FMT_INLINE auto operator()(T value) -> iterator {
- return detail::write(out, value, specs, locale);
- }
- auto operator()(typename basic_format_arg<context>::handle) -> iterator {
- // User-defined types are handled separately because they require access
- // to the parse context.
- return out;
- }
-};
-
-struct width_checker {
- template <typename T, FMT_ENABLE_IF(is_integer<T>::value)>
- FMT_CONSTEXPR auto operator()(T value) -> unsigned long long {
- if (is_negative(value)) throw_format_error("negative width");
- return static_cast<unsigned long long>(value);
- }
-
- template <typename T, FMT_ENABLE_IF(!is_integer<T>::value)>
- FMT_CONSTEXPR auto operator()(T) -> unsigned long long {
- throw_format_error("width is not integer");
- return 0;
- }
-};
-
-struct precision_checker {
- template <typename T, FMT_ENABLE_IF(is_integer<T>::value)>
- FMT_CONSTEXPR auto operator()(T value) -> unsigned long long {
- if (is_negative(value)) throw_format_error("negative precision");
- return static_cast<unsigned long long>(value);
- }
-
- template <typename T, FMT_ENABLE_IF(!is_integer<T>::value)>
- FMT_CONSTEXPR auto operator()(T) -> unsigned long long {
- throw_format_error("precision is not integer");
- return 0;
- }
-};
-
-template <typename Handler, typename FormatArg>
-FMT_CONSTEXPR auto get_dynamic_spec(FormatArg arg) -> int {
- unsigned long long value = visit_format_arg(Handler(), arg);
- if (value > to_unsigned(max_value<int>()))
- throw_format_error("number is too big");
- return static_cast<int>(value);
-}
-
-template <typename Context, typename ID>
-FMT_CONSTEXPR auto get_arg(Context& ctx, ID id) -> decltype(ctx.arg(id)) {
- auto arg = ctx.arg(id);
- if (!arg) ctx.on_error("argument not found");
- return arg;
-}
-
-template <typename Handler, typename Context>
-FMT_CONSTEXPR void handle_dynamic_spec(int& value,
- arg_ref<typename Context::char_type> ref,
- Context& ctx) {
- switch (ref.kind) {
- case arg_id_kind::none:
- break;
- case arg_id_kind::index:
- value = detail::get_dynamic_spec<Handler>(get_arg(ctx, ref.val.index));
- break;
- case arg_id_kind::name:
- value = detail::get_dynamic_spec<Handler>(get_arg(ctx, ref.val.name));
- break;
- }
-}
-
-#if FMT_USE_USER_DEFINED_LITERALS
-# if FMT_USE_NONTYPE_TEMPLATE_ARGS
-template <typename T, typename Char, size_t N,
- fmt::detail_exported::fixed_string<Char, N> Str>
-struct statically_named_arg : view {
- static constexpr auto name = Str.data;
-
- const T& value;
- statically_named_arg(const T& v) : value(v) {}
-};
-
-template <typename T, typename Char, size_t N,
- fmt::detail_exported::fixed_string<Char, N> Str>
-struct is_named_arg<statically_named_arg<T, Char, N, Str>> : std::true_type {};
-
-template <typename T, typename Char, size_t N,
- fmt::detail_exported::fixed_string<Char, N> Str>
-struct is_statically_named_arg<statically_named_arg<T, Char, N, Str>>
- : std::true_type {};
-
-template <typename Char, size_t N,
- fmt::detail_exported::fixed_string<Char, N> Str>
-struct udl_arg {
- template <typename T> auto operator=(T&& value) const {
- return statically_named_arg<T, Char, N, Str>(std::forward<T>(value));
- }
-};
-# else
-template <typename Char> struct udl_arg {
- const Char* str;
-
- template <typename T> auto operator=(T&& value) const -> named_arg<Char, T> {
- return {str, std::forward<T>(value)};
- }
-};
-# endif
-#endif // FMT_USE_USER_DEFINED_LITERALS
-
-template <typename Locale, typename Char>
-auto vformat(const Locale& loc, basic_string_view<Char> fmt,
- basic_format_args<buffer_context<type_identity_t<Char>>> args)
- -> std::basic_string<Char> {
- auto buf = basic_memory_buffer<Char>();
- detail::vformat_to(buf, fmt, args, detail::locale_ref(loc));
- return {buf.data(), buf.size()};
-}
-
-using format_func = void (*)(detail::buffer<char>&, int, const char*);
-
-FMT_API void format_error_code(buffer<char>& out, int error_code,
- string_view message) noexcept;
-
-FMT_API void report_error(format_func func, int error_code,
- const char* message) noexcept;
-} // namespace detail
-
-FMT_API auto vsystem_error(int error_code, string_view format_str,
- format_args args) -> std::system_error;
-
-/**
- \rst
- Constructs :class:`std::system_error` with a message formatted with
- ``fmt::format(fmt, args...)``.
- *error_code* is a system error code as given by ``errno``.
-
- **Example**::
-
- // This throws std::system_error with the description
- // cannot open file 'madeup': No such file or directory
- // or similar (system message may vary).
- const char* filename = "madeup";
- std::FILE* file = std::fopen(filename, "r");
- if (!file)
- throw fmt::system_error(errno, "cannot open file '{}'", filename);
- \endrst
- */
-template <typename... T>
-auto system_error(int error_code, format_string<T...> fmt, T&&... args)
- -> std::system_error {
- return vsystem_error(error_code, fmt, fmt::make_format_args(args...));
-}
-
-/**
- \rst
- Formats an error message for an error returned by an operating system or a
- language runtime, for example a file opening error, and writes it to *out*.
- The format is the same as the one used by ``std::system_error(ec, message)``
- where ``ec`` is ``std::error_code(error_code, std::generic_category()})``.
- It is implementation-defined but normally looks like:
-
- .. parsed-literal::
- *<message>*: *<system-message>*
-
- where *<message>* is the passed message and *<system-message>* is the system
- message corresponding to the error code.
- *error_code* is a system error code as given by ``errno``.
- \endrst
- */
-FMT_API void format_system_error(detail::buffer<char>& out, int error_code,
- const char* message) noexcept;
-
-// Reports a system error without throwing an exception.
-// Can be used to report errors from destructors.
-FMT_API void report_system_error(int error_code, const char* message) noexcept;
-
-/** Fast integer formatter. */
-class format_int {
- private:
- // Buffer should be large enough to hold all digits (digits10 + 1),
- // a sign and a null character.
- enum { buffer_size = std::numeric_limits<unsigned long long>::digits10 + 3 };
- mutable char buffer_[buffer_size];
- char* str_;
-
- template <typename UInt> auto format_unsigned(UInt value) -> char* {
- auto n = static_cast<detail::uint32_or_64_or_128_t<UInt>>(value);
- return detail::format_decimal(buffer_, n, buffer_size - 1).begin;
- }
-
- template <typename Int> auto format_signed(Int value) -> char* {
- auto abs_value = static_cast<detail::uint32_or_64_or_128_t<Int>>(value);
- bool negative = value < 0;
- if (negative) abs_value = 0 - abs_value;
- auto begin = format_unsigned(abs_value);
- if (negative) *--begin = '-';
- return begin;
- }
-
- public:
- explicit format_int(int value) : str_(format_signed(value)) {}
- explicit format_int(long value) : str_(format_signed(value)) {}
- explicit format_int(long long value) : str_(format_signed(value)) {}
- explicit format_int(unsigned value) : str_(format_unsigned(value)) {}
- explicit format_int(unsigned long value) : str_(format_unsigned(value)) {}
- explicit format_int(unsigned long long value)
- : str_(format_unsigned(value)) {}
-
- /** Returns the number of characters written to the output buffer. */
- auto size() const -> size_t {
- return detail::to_unsigned(buffer_ - str_ + buffer_size - 1);
- }
-
- /**
- Returns a pointer to the output buffer content. No terminating null
- character is appended.
- */
- auto data() const -> const char* { return str_; }
-
- /**
- Returns a pointer to the output buffer content with terminating null
- character appended.
- */
- auto c_str() const -> const char* {
- buffer_[buffer_size - 1] = '\0';
- return str_;
- }
-
- /**
- \rst
- Returns the content of the output buffer as an ``std::string``.
- \endrst
- */
- auto str() const -> std::string { return std::string(str_, size()); }
-};
-
-template <typename T, typename Char>
-struct formatter<T, Char, enable_if_t<detail::has_format_as<T>::value>>
- : formatter<detail::format_as_t<T>, Char> {
- template <typename FormatContext>
- auto format(const T& value, FormatContext& ctx) const -> decltype(ctx.out()) {
- using base = formatter<detail::format_as_t<T>, Char>;
- return base::format(format_as(value), ctx);
- }
-};
-
-#define FMT_FORMAT_AS(Type, Base) \
- template <typename Char> \
- struct formatter<Type, Char> : formatter<Base, Char> {}
-
-FMT_FORMAT_AS(signed char, int);
-FMT_FORMAT_AS(unsigned char, unsigned);
-FMT_FORMAT_AS(short, int);
-FMT_FORMAT_AS(unsigned short, unsigned);
-FMT_FORMAT_AS(long, detail::long_type);
-FMT_FORMAT_AS(unsigned long, detail::ulong_type);
-FMT_FORMAT_AS(Char*, const Char*);
-FMT_FORMAT_AS(std::basic_string<Char>, basic_string_view<Char>);
-FMT_FORMAT_AS(std::nullptr_t, const void*);
-FMT_FORMAT_AS(detail::std_string_view<Char>, basic_string_view<Char>);
-FMT_FORMAT_AS(void*, const void*);
-
-template <typename Char, size_t N>
-struct formatter<Char[N], Char> : formatter<basic_string_view<Char>, Char> {};
-
-/**
- \rst
- Converts ``p`` to ``const void*`` for pointer formatting.
-
- **Example**::
-
- auto s = fmt::format("{}", fmt::ptr(p));
- \endrst
- */
-template <typename T> auto ptr(T p) -> const void* {
- static_assert(std::is_pointer<T>::value, "");
- return detail::bit_cast<const void*>(p);
-}
-template <typename T, typename Deleter>
-auto ptr(const std::unique_ptr<T, Deleter>& p) -> const void* {
- return p.get();
-}
-template <typename T> auto ptr(const std::shared_ptr<T>& p) -> const void* {
- return p.get();
-}
-
-/**
- \rst
- Converts ``e`` to the underlying type.
-
- **Example**::
-
- enum class color { red, green, blue };
- auto s = fmt::format("{}", fmt::underlying(color::red));
- \endrst
- */
-template <typename Enum>
-constexpr auto underlying(Enum e) noexcept -> underlying_t<Enum> {
- return static_cast<underlying_t<Enum>>(e);
-}
-
-namespace enums {
-template <typename Enum, FMT_ENABLE_IF(std::is_enum<Enum>::value)>
-constexpr auto format_as(Enum e) noexcept -> underlying_t<Enum> {
- return static_cast<underlying_t<Enum>>(e);
-}
-} // namespace enums
-
-class bytes {
- private:
- string_view data_;
- friend struct formatter<bytes>;
-
- public:
- explicit bytes(string_view data) : data_(data) {}
-};
-
-template <> struct formatter<bytes> {
- private:
- detail::dynamic_format_specs<> specs_;
-
- public:
- template <typename ParseContext>
- FMT_CONSTEXPR auto parse(ParseContext& ctx) -> const char* {
- return parse_format_specs(ctx.begin(), ctx.end(), specs_, ctx,
- detail::type::string_type);
- }
-
- template <typename FormatContext>
- auto format(bytes b, FormatContext& ctx) -> decltype(ctx.out()) {
- detail::handle_dynamic_spec<detail::width_checker>(specs_.width,
- specs_.width_ref, ctx);
- detail::handle_dynamic_spec<detail::precision_checker>(
- specs_.precision, specs_.precision_ref, ctx);
- return detail::write_bytes(ctx.out(), b.data_, specs_);
- }
-};
-
-// group_digits_view is not derived from view because it copies the argument.
-template <typename T> struct group_digits_view {
- T value;
-};
-
-/**
- \rst
- Returns a view that formats an integer value using ',' as a locale-independent
- thousands separator.
-
- **Example**::
-
- fmt::print("{}", fmt::group_digits(12345));
- // Output: "12,345"
- \endrst
- */
-template <typename T> auto group_digits(T value) -> group_digits_view<T> {
- return {value};
-}
-
-template <typename T> struct formatter<group_digits_view<T>> : formatter<T> {
- private:
- detail::dynamic_format_specs<> specs_;
-
- public:
- template <typename ParseContext>
- FMT_CONSTEXPR auto parse(ParseContext& ctx) -> const char* {
- return parse_format_specs(ctx.begin(), ctx.end(), specs_, ctx,
- detail::type::int_type);
- }
-
- template <typename FormatContext>
- auto format(group_digits_view<T> t, FormatContext& ctx)
- -> decltype(ctx.out()) {
- detail::handle_dynamic_spec<detail::width_checker>(specs_.width,
- specs_.width_ref, ctx);
- detail::handle_dynamic_spec<detail::precision_checker>(
- specs_.precision, specs_.precision_ref, ctx);
- return detail::write_int(
- ctx.out(), static_cast<detail::uint64_or_128_t<T>>(t.value), 0, specs_,
- detail::digit_grouping<char>("\3", ","));
- }
-};
-
-template <typename T> struct nested_view {
- const formatter<T>* fmt;
- const T* value;
-};
-
-template <typename T> struct formatter<nested_view<T>> {
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> const char* {
- return ctx.begin();
- }
- auto format(nested_view<T> view, format_context& ctx) const
- -> decltype(ctx.out()) {
- return view.fmt->format(*view.value, ctx);
- }
-};
-
-template <typename T> struct nested_formatter {
- private:
- int width_;
- detail::fill_t<char> fill_;
- align_t align_ : 4;
- formatter<T> formatter_;
-
- public:
- constexpr nested_formatter() : width_(0), align_(align_t::none) {}
-
- FMT_CONSTEXPR auto parse(format_parse_context& ctx) -> const char* {
- auto specs = detail::dynamic_format_specs<char>();
- auto it = parse_format_specs(ctx.begin(), ctx.end(), specs, ctx,
- detail::type::none_type);
- width_ = specs.width;
- fill_ = specs.fill;
- align_ = specs.align;
- ctx.advance_to(it);
- return formatter_.parse(ctx);
- }
-
- template <typename F>
- auto write_padded(format_context& ctx, F write) const -> decltype(ctx.out()) {
- if (width_ == 0) return write(ctx.out());
- auto buf = memory_buffer();
- write(std::back_inserter(buf));
- auto specs = format_specs<>();
- specs.width = width_;
- specs.fill = fill_;
- specs.align = align_;
- return detail::write(ctx.out(), string_view(buf.data(), buf.size()), specs);
- }
-
- auto nested(const T& value) const -> nested_view<T> {
- return nested_view<T>{&formatter_, &value};
- }
-};
-
-// DEPRECATED! join_view will be moved to ranges.h.
-template <typename It, typename Sentinel, typename Char = char>
-struct join_view : detail::view {
- It begin;
- Sentinel end;
- basic_string_view<Char> sep;
-
- join_view(It b, Sentinel e, basic_string_view<Char> s)
- : begin(b), end(e), sep(s) {}
-};
-
-template <typename It, typename Sentinel, typename Char>
-struct formatter<join_view<It, Sentinel, Char>, Char> {
- private:
- using value_type =
-#ifdef __cpp_lib_ranges
- std::iter_value_t<It>;
-#else
- typename std::iterator_traits<It>::value_type;
-#endif
- formatter<remove_cvref_t<value_type>, Char> value_formatter_;
-
- public:
- template <typename ParseContext>
- FMT_CONSTEXPR auto parse(ParseContext& ctx) -> const Char* {
- return value_formatter_.parse(ctx);
- }
-
- template <typename FormatContext>
- auto format(const join_view<It, Sentinel, Char>& value,
- FormatContext& ctx) const -> decltype(ctx.out()) {
- auto it = value.begin;
- auto out = ctx.out();
- if (it != value.end) {
- out = value_formatter_.format(*it, ctx);
- ++it;
- while (it != value.end) {
- out = detail::copy_str<Char>(value.sep.begin(), value.sep.end(), out);
- ctx.advance_to(out);
- out = value_formatter_.format(*it, ctx);
- ++it;
- }
- }
- return out;
- }
-};
-
-/**
- Returns a view that formats the iterator range `[begin, end)` with elements
- separated by `sep`.
- */
-template <typename It, typename Sentinel>
-auto join(It begin, Sentinel end, string_view sep) -> join_view<It, Sentinel> {
- return {begin, end, sep};
-}
-
-/**
- \rst
- Returns a view that formats `range` with elements separated by `sep`.
-
- **Example**::
-
- std::vector<int> v = {1, 2, 3};
- fmt::print("{}", fmt::join(v, ", "));
- // Output: "1, 2, 3"
-
- ``fmt::join`` applies passed format specifiers to the range elements::
-
- fmt::print("{:02}", fmt::join(v, ", "));
- // Output: "01, 02, 03"
- \endrst
- */
-template <typename Range>
-auto join(Range&& range, string_view sep)
- -> join_view<detail::iterator_t<Range>, detail::sentinel_t<Range>> {
- return join(std::begin(range), std::end(range), sep);
-}
-
-/**
- \rst
- Converts *value* to ``std::string`` using the default format for type *T*.
-
- **Example**::
-
- #include <fmt/format.h>
-
- std::string answer = fmt::to_string(42);
- \endrst
- */
-template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value &&
- !detail::has_format_as<T>::value)>
-inline auto to_string(const T& value) -> std::string {
- auto buffer = memory_buffer();
- detail::write<char>(appender(buffer), value);
- return {buffer.data(), buffer.size()};
-}
-
-template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
-FMT_NODISCARD inline auto to_string(T value) -> std::string {
- // The buffer should be large enough to store the number including the sign
- // or "false" for bool.
- constexpr int max_size = detail::digits10<T>() + 2;
- char buffer[max_size > 5 ? static_cast<unsigned>(max_size) : 5];
- char* begin = buffer;
- return std::string(begin, detail::write<char>(begin, value));
-}
-
-template <typename Char, size_t SIZE>
-FMT_NODISCARD auto to_string(const basic_memory_buffer<Char, SIZE>& buf)
- -> std::basic_string<Char> {
- auto size = buf.size();
- detail::assume(size < std::basic_string<Char>().max_size());
- return std::basic_string<Char>(buf.data(), size);
-}
-
-template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value &&
- detail::has_format_as<T>::value)>
-inline auto to_string(const T& value) -> std::string {
- return to_string(format_as(value));
-}
-
-FMT_END_EXPORT
-
-namespace detail {
-
-template <typename Char>
-void vformat_to(buffer<Char>& buf, basic_string_view<Char> fmt,
- typename vformat_args<Char>::type args, locale_ref loc) {
- auto out = buffer_appender<Char>(buf);
- if (fmt.size() == 2 && equal2(fmt.data(), "{}")) {
- auto arg = args.get(0);
- if (!arg) throw_format_error("argument not found");
- visit_format_arg(default_arg_formatter<Char>{out, args, loc}, arg);
- return;
- }
-
- struct format_handler : error_handler {
- basic_format_parse_context<Char> parse_context;
- buffer_context<Char> context;
-
- format_handler(buffer_appender<Char> p_out, basic_string_view<Char> str,
- basic_format_args<buffer_context<Char>> p_args,
- locale_ref p_loc)
- : parse_context(str), context(p_out, p_args, p_loc) {}
-
- void on_text(const Char* begin, const Char* end) {
- auto text = basic_string_view<Char>(begin, to_unsigned(end - begin));
- context.advance_to(write<Char>(context.out(), text));
- }
-
- FMT_CONSTEXPR auto on_arg_id() -> int {
- return parse_context.next_arg_id();
- }
- FMT_CONSTEXPR auto on_arg_id(int id) -> int {
- return parse_context.check_arg_id(id), id;
- }
- FMT_CONSTEXPR auto on_arg_id(basic_string_view<Char> id) -> int {
- int arg_id = context.arg_id(id);
- if (arg_id < 0) throw_format_error("argument not found");
- return arg_id;
- }
-
- FMT_INLINE void on_replacement_field(int id, const Char*) {
- auto arg = get_arg(context, id);
- context.advance_to(visit_format_arg(
- default_arg_formatter<Char>{context.out(), context.args(),
- context.locale()},
- arg));
- }
-
- auto on_format_specs(int id, const Char* begin, const Char* end)
- -> const Char* {
- auto arg = get_arg(context, id);
- // Not using a visitor for custom types gives better codegen.
- if (arg.format_custom(begin, parse_context, context))
- return parse_context.begin();
- auto specs = detail::dynamic_format_specs<Char>();
- begin = parse_format_specs(begin, end, specs, parse_context, arg.type());
- detail::handle_dynamic_spec<detail::width_checker>(
- specs.width, specs.width_ref, context);
- detail::handle_dynamic_spec<detail::precision_checker>(
- specs.precision, specs.precision_ref, context);
- if (begin == end || *begin != '}')
- throw_format_error("missing '}' in format string");
- auto f = arg_formatter<Char>{context.out(), specs, context.locale()};
- context.advance_to(visit_format_arg(f, arg));
- return begin;
- }
- };
- detail::parse_format_string<false>(fmt, format_handler(out, fmt, args, loc));
-}
-
-FMT_BEGIN_EXPORT
-
-#ifndef FMT_HEADER_ONLY
-extern template FMT_API void vformat_to(buffer<char>&, string_view,
- typename vformat_args<>::type,
- locale_ref);
-extern template FMT_API auto thousands_sep_impl<char>(locale_ref)
- -> thousands_sep_result<char>;
-extern template FMT_API auto thousands_sep_impl<wchar_t>(locale_ref)
- -> thousands_sep_result<wchar_t>;
-extern template FMT_API auto decimal_point_impl(locale_ref) -> char;
-extern template FMT_API auto decimal_point_impl(locale_ref) -> wchar_t;
-#endif // FMT_HEADER_ONLY
-
-} // namespace detail
-
-#if FMT_USE_USER_DEFINED_LITERALS
-inline namespace literals {
-/**
- \rst
- User-defined literal equivalent of :func:`fmt::arg`.
-
- **Example**::
-
- using namespace fmt::literals;
- fmt::print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
- \endrst
- */
-# if FMT_USE_NONTYPE_TEMPLATE_ARGS
-template <detail_exported::fixed_string Str> constexpr auto operator""_a() {
- using char_t = remove_cvref_t<decltype(Str.data[0])>;
- return detail::udl_arg<char_t, sizeof(Str.data) / sizeof(char_t), Str>();
-}
-# else
-constexpr auto operator""_a(const char* s, size_t) -> detail::udl_arg<char> {
- return {s};
-}
-# endif
-} // namespace literals
-#endif // FMT_USE_USER_DEFINED_LITERALS
-
-template <typename Locale, FMT_ENABLE_IF(detail::is_locale<Locale>::value)>
-inline auto vformat(const Locale& loc, string_view fmt, format_args args)
- -> std::string {
- return detail::vformat(loc, fmt, args);
-}
-
-template <typename Locale, typename... T,
- FMT_ENABLE_IF(detail::is_locale<Locale>::value)>
-inline auto format(const Locale& loc, format_string<T...> fmt, T&&... args)
- -> std::string {
- return fmt::vformat(loc, string_view(fmt), fmt::make_format_args(args...));
-}
-
-template <typename OutputIt, typename Locale,
- FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value&&
- detail::is_locale<Locale>::value)>
-auto vformat_to(OutputIt out, const Locale& loc, string_view fmt,
- format_args args) -> OutputIt {
- using detail::get_buffer;
- auto&& buf = get_buffer<char>(out);
- detail::vformat_to(buf, fmt, args, detail::locale_ref(loc));
- return detail::get_iterator(buf, out);
-}
-
-template <typename OutputIt, typename Locale, typename... T,
- FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, char>::value&&
- detail::is_locale<Locale>::value)>
-FMT_INLINE auto format_to(OutputIt out, const Locale& loc,
- format_string<T...> fmt, T&&... args) -> OutputIt {
- return vformat_to(out, loc, fmt, fmt::make_format_args(args...));
-}
-
-template <typename Locale, typename... T,
- FMT_ENABLE_IF(detail::is_locale<Locale>::value)>
-FMT_NODISCARD FMT_INLINE auto formatted_size(const Locale& loc,
- format_string<T...> fmt,
- T&&... args) -> size_t {
- auto buf = detail::counting_buffer<>();
- detail::vformat_to<char>(buf, fmt, fmt::make_format_args(args...),
- detail::locale_ref(loc));
- return buf.count();
-}
-
-FMT_END_EXPORT
-
-template <typename T, typename Char>
-template <typename FormatContext>
-FMT_CONSTEXPR FMT_INLINE auto
-formatter<T, Char,
- enable_if_t<detail::type_constant<T, Char>::value !=
- detail::type::custom_type>>::format(const T& val,
- FormatContext& ctx)
- const -> decltype(ctx.out()) {
- if (specs_.width_ref.kind == detail::arg_id_kind::none &&
- specs_.precision_ref.kind == detail::arg_id_kind::none) {
- return detail::write<Char>(ctx.out(), val, specs_, ctx.locale());
- }
- auto specs = specs_;
- detail::handle_dynamic_spec<detail::width_checker>(specs.width,
- specs.width_ref, ctx);
- detail::handle_dynamic_spec<detail::precision_checker>(
- specs.precision, specs.precision_ref, ctx);
- return detail::write<Char>(ctx.out(), val, specs, ctx.locale());
-}
-
-FMT_END_NAMESPACE
-
-#ifdef FMT_HEADER_ONLY
-# define FMT_FUNC inline
-# include "format-inl.h"
-#else
-# define FMT_FUNC
-#endif
-
-#endif // FMT_FORMAT_H_
#include <iomanip>
#include <stdexcept>
-#include "fmt/format.h"
-
namespace factor {
void factor_vm::primitive_bignum_to_fixnum() {
ctx->replace(tag<byte_array>(array));
return;
}
-
- if (format[0]) {
-
- switch (format[0]) {
- case 'f': localized_stream << std::fixed; break;
- case 'e': localized_stream << std::scientific; break;
- }
- if (isupper(format[0])) {
- localized_stream << std::uppercase;
- }
- if (fill[0] != '\0') {
- localized_stream << std::setfill(fill[0]);
- }
- if (width >= 0) {
- localized_stream << std::setw(static_cast<int>(width));
- }
- if (precision >= 0) {
- localized_stream << std::setprecision(static_cast<int>(precision));
- }
-
- localized_stream << value;
-
- } else {
-
- localized_stream << fmt::format("{}", value);
+ switch (format[0]) {
+ case 'f': localized_stream << std::fixed; break;
+ case 'e': localized_stream << std::scientific; break;
}
-
+ if (isupper(format[0])) {
+ localized_stream << std::uppercase;
+ }
+ if (fill[0] != '\0') {
+ localized_stream << std::setfill(fill[0]);
+ }
+ if (width >= 0) {
+ localized_stream << std::setw(static_cast<int>(width));
+ }
+ if (precision >= 0) {
+ localized_stream << std::setprecision(static_cast<int>(precision));
+ }
+ localized_stream << value;
const std::string& tmp = localized_stream.str();
const char* cstr = tmp.c_str();
size_t size = tmp.length();
projects / factor.git / commitdiff