1 ! Copyright (C) 2004, 2010 Slava Pestov, Joe Groff.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: kernel math math.order math.private ;
7 : float-unordered? ( x y -- ? ) [ fp-nan? ] either? ;
8 : float-min ( x y -- z ) [ float< ] most ; foldable
9 : float-max ( x y -- z ) [ float> ] most ; foldable
11 M: float >fixnum float>fixnum ; inline
12 M: float >bignum float>bignum ; inline
13 M: float >float ; inline
15 M: float hashcode* nip float>bits ; inline
16 M: float equal? over float? [ float= ] [ 2drop f ] if ; inline
17 M: float number= float= ; inline
19 M: float < float< ; inline
20 M: float <= float<= ; inline
21 M: float > float> ; inline
22 M: float >= float>= ; inline
24 M: float unordered? float-unordered? ; inline
25 M: float u< float-u< ; inline
26 M: float u<= float-u<= ; inline
27 M: float u> float-u> ; inline
28 M: float u>= float-u>= ; inline
30 M: float min over float? [ float-min ] [ call-next-method ] if ; inline
31 M: float max over float? [ float-max ] [ call-next-method ] if ; inline
33 M: float + float+ ; inline
34 M: float - float- ; inline
35 M: float * float* ; inline
36 M: float / float/f ; inline
37 M: float /f float/f ; inline
38 M: float /i float/f >integer ; inline
40 M: real abs dup 0 < [ neg ] when ; inline
42 M: real /mod 2dup mod [ swap [ - ] [ /i ] bi* ] keep ; inline
45 double>bits -52 shift 0x7ff [ bitand ] keep = ; inline
47 M: float fp-nan-payload
48 double>bits 52 2^ 1 - bitand ; inline
54 dup fp-nan? [ fp-nan-payload 51 bit? ] [ drop f ] if ; inline
57 dup fp-nan? [ fp-nan-payload 51 bit? not ] [ drop f ] if ; inline
60 dup fp-special? [ fp-nan-payload zero? ] [ drop f ] if ; inline
64 dup -0.0 double>bits > [ 1 - bits>double ] [ ! negative non-zero
65 dup -0.0 double>bits = [ drop 0.0 ] [ ! negative zero
66 1 + bits>double ! positive
72 dup -0.0 double>bits >= [ 1 + bits>double ] [ ! negative
73 dup 0.0 double>bits = [ drop -0.0 ] [ ! positive zero
74 1 - bits>double ! positive non-zero
78 M: float fp-sign double>bits 63 bit? ; inline
80 M: float neg? fp-sign ; inline
82 M: float abs double>bits 63 2^ bitnot bitand bits>double ; inline