xref: /netbsd-src/lib/libm/src/w_fmodf.c (revision 1ca5c1b28139779176bd5c13ad7c5f25c0bcd5f8)
1 /* w_fmodf.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 #include <sys/cdefs.h>
17 #if defined(LIBM_SCCS) && !defined(lint)
18 __RCSID("$NetBSD: w_fmodf.c,v 1.5 1999/07/02 15:37:44 simonb Exp $");
19 #endif
20 
21 /*
22  * wrapper fmodf(x,y)
23  */
24 
25 #include "math.h"
26 #include "math_private.h"
27 
28 
29 #ifdef __STDC__
30 	float fmodf(float x, float y)	/* wrapper fmodf */
31 #else
32 	float fmodf(x,y)		/* wrapper fmodf */
33 	float x,y;
34 #endif
35 {
36 #ifdef _IEEE_LIBM
37 	return __ieee754_fmodf(x,y);
38 #else
39 	float z;
40 	z = __ieee754_fmodf(x,y);
41 	if(_LIB_VERSION == _IEEE_ ||isnanf(y)||isnanf(x)) return z;
42 	if(y==(float)0.0) {
43 		/* fmodf(x,0) */
44 	        return (float)__kernel_standard((double)x,(double)y,127);
45 	} else
46 	    return z;
47 #endif
48 }
49