xref: /netbsd-src/lib/libm/src/w_fmodf.c (revision 1f2744e6e4915c9da2a3f980279398c4cf7d5e6d)
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 #if defined(LIBM_SCCS) && !defined(lint)
17 static char rcsid[] = "$Id: w_fmodf.c,v 1.2 1994/09/22 16:45:35 jtc Exp $";
18 #endif
19 
20 /*
21  * wrapper fmodf(x,y)
22  */
23 
24 #include "math.h"
25 #include "math_private.h"
26 
27 
28 #ifdef __STDC__
29 	float fmodf(float x, float y)	/* wrapper fmodf */
30 #else
31 	float fmodf(x,y)		/* wrapper fmodf */
32 	float x,y;
33 #endif
34 {
35 #ifdef _IEEE_LIBM
36 	return __ieee754_fmodf(x,y);
37 #else
38 	float z;
39 	z = __ieee754_fmodf(x,y);
40 	if(_LIB_VERSION == _IEEE_ ||isnanf(y)||isnanf(x)) return z;
41 	if(y==(float)0.0) {
42 		/* fmodf(x,0) */
43 	        return (float)__kernel_standard((double)x,(double)y,127);
44 	} else
45 	    return z;
46 #endif
47 }
48