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      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
     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