1 ! Copyright (C) 2007, 2008 Slava Pestov.
2 ! See http://factorcode.org/license.txt for BSD license.
3 USING: kernel kernel.private alien.accessors sequences
4 sequences.private math math.private byte-arrays accessors
5 alien.c-types parser prettyprint.backend ;
9 { length array-capacity read-only }
10 { underlying byte-array read-only } ;
12 : <float-array> ( n -- float-array )
13 dup "double" <c-array> float-array boa ; inline
16 [ length>> ] [ underlying>> clone ] bi float-array boa ;
18 M: float-array length length>> ;
20 M: float-array nth-unsafe
21 underlying>> double-nth ;
23 M: float-array set-nth-unsafe
24 [ >float ] 2dip underlying>> set-double-nth ;
26 : >float-array ( seq -- float-array )
27 T{ float-array } clone-like ; inline
30 drop dup float-array? [ >float-array ] unless ;
32 M: float-array new-sequence
36 over float-array? [ sequence= ] [ 2drop f ] if ;
40 [ "double" heap-size * ] [ underlying>> ] bi*
45 M: float-array byte-length length "double" heap-size * ;
47 INSTANCE: float-array sequence
49 : 1float-array ( x -- array )
50 1 <float-array> [ set-first ] keep ; inline
52 : 2float-array ( x y -- array )
53 T{ float-array } 2sequence ; inline
55 : 3float-array ( x y z -- array )
56 T{ float-array } 3sequence ; inline
58 : 4float-array ( w x y z -- array )
59 T{ float-array } 4sequence ; inline
61 : F{ \ } [ >float-array ] parse-literal ; parsing
63 M: float-array pprint-delims drop \ F{ \ } ;
64 M: float-array >pprint-sequence ;
65 M: float-array pprint* pprint-object ;
67 USING: hints math.vectors arrays ;
69 HINTS: vneg { float-array } { array } ;
70 HINTS: v*n { float-array float } { array object } ;
71 HINTS: n*v { float float-array } { array object } ;
72 HINTS: v/n { float-array float } { array object } ;
73 HINTS: n/v { float float-array } { object array } ;
74 HINTS: v+ { float-array float-array } { array array } ;
75 HINTS: v- { float-array float-array } { array array } ;
76 HINTS: v* { float-array float-array } { array array } ;
77 HINTS: v/ { float-array float-array } { array array } ;
78 HINTS: vmax { float-array float-array } { array array } ;
79 HINTS: vmin { float-array float-array } { array array } ;
80 HINTS: v. { float-array float-array } { array array } ;
81 HINTS: norm-sq { float-array } { array } ;
82 HINTS: norm { float-array } { array } ;
83 HINTS: normalize { float-array } { array } ;