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__
fmodf(float x,float y)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__
fmod(double x,double y)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) */
74