1 | /* wf_fmod.c -- float version of w_fmod.c. |
---|
2 | * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. |
---|
3 | */ |
---|
4 | |
---|
5 | /* |
---|
6 | * ==================================================== |
---|
7 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
---|
8 | * |
---|
9 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
---|
10 | * Permission to use, copy, modify, and distribute this |
---|
11 | * software is freely granted, provided that this notice |
---|
12 | * is preserved. |
---|
13 | * ==================================================== |
---|
14 | */ |
---|
15 | |
---|
16 | /* |
---|
17 | * wrapper fmodf(x,y) |
---|
18 | */ |
---|
19 | |
---|
20 | #include "fdlibm.h" |
---|
21 | #include <errno.h> |
---|
22 | |
---|
23 | #ifdef __STDC__ |
---|
24 | float fmodf(float x, float y) /* wrapper fmodf */ |
---|
25 | #else |
---|
26 | float fmodf(x,y) /* wrapper fmodf */ |
---|
27 | float x,y; |
---|
28 | #endif |
---|
29 | { |
---|
30 | #ifdef _IEEE_LIBM |
---|
31 | return __ieee754_fmodf(x,y); |
---|
32 | #else |
---|
33 | float z; |
---|
34 | struct exception exc; |
---|
35 | z = __ieee754_fmodf(x,y); |
---|
36 | if(_LIB_VERSION == _IEEE_ ||isnan(y)||isnan(x)) return z; |
---|
37 | if(y==(float)0.0) { |
---|
38 | /* fmodf(x,0) */ |
---|
39 | exc.type = DOMAIN; |
---|
40 | exc.name = "fmodf"; |
---|
41 | exc.err = 0; |
---|
42 | exc.arg1 = (double)x; |
---|
43 | exc.arg2 = (double)y; |
---|
44 | if (_LIB_VERSION == _SVID_) |
---|
45 | exc.retval = x; |
---|
46 | else |
---|
47 | exc.retval = 0.0/0.0; |
---|
48 | if (_LIB_VERSION == _POSIX_) |
---|
49 | errno = EDOM; |
---|
50 | else if (!matherr(&exc)) { |
---|
51 | errno = EDOM; |
---|
52 | } |
---|
53 | if (exc.err != 0) |
---|
54 | errno = exc.err; |
---|
55 | return (float)exc.retval; |
---|
56 | } else |
---|
57 | return z; |
---|
58 | #endif |
---|
59 | } |
---|
60 | |
---|
61 | #ifdef _DOUBLE_IS_32BITS |
---|
62 | |
---|
63 | #ifdef __STDC__ |
---|
64 | double fmod(double x, double y) |
---|
65 | #else |
---|
66 | double fmod(x,y) |
---|
67 | double x,y; |
---|
68 | #endif |
---|
69 | { |
---|
70 | return (double) fmodf((float) x, (float) y); |
---|
71 | } |
---|
72 | |
---|
73 | #endif /* defined(_DOUBLE_IS_32BITS) */ |
---|