1 /* @(#)w_fmod.c 5.1 93/09/24 */
2 /*
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
5 *
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
9 * is preserved.
10 * ====================================================
11 */
12
13 #include <sys/cdefs.h>
14 #if defined(LIBM_SCCS) && !defined(lint)
15 __RCSID("$NetBSD: w_fmod.c,v 1.10 2013/11/12 16:48:39 joerg Exp $");
16 #endif
17
18 /*
19 * wrapper fmod(x,y)
20 */
21
22 #include "math.h"
23 #include "math_private.h"
24
25 #ifndef __HAVE_LONG_DOUBLE
__strong_alias(_fmodl,fmod)26 __strong_alias(_fmodl, fmod)
27 __weak_alias(fmodl, fmod)
28 #endif
29
30 double
31 fmod(double x, double y) /* wrapper fmod */
32 {
33 #ifdef _IEEE_LIBM
34 return __ieee754_fmod(x,y);
35 #else
36 double z;
37 z = __ieee754_fmod(x,y);
38 if(_LIB_VERSION == _IEEE_ ||isnan(y)||isnan(x)) return z;
39 if(y==0.0) {
40 return __kernel_standard(x,y,27); /* fmod(x,0) */
41 } else
42 return z;
43 #endif
44 }
45