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  #if defined(LIBM_SCCS) && !defined(lint)
14  static char rcsid[] = "$NetBSD: w_fmod.c,v 1.6 1995/05/10 20:48:55 jtc Exp $";
15  #endif
16  
17  /* 
18   * wrapper fmod(x,y)
19   */
20  
21  #include "math.h"
22  #include "mathP.h"
23  
24  
25  #ifdef __STDC__
26  	double fmod(double x, double y)	/* wrapper fmod */
27  #else
28  	double fmod(x,y)		/* wrapper fmod */
29  	double x,y;
30  #endif
31  {
32  #ifdef _IEEE_LIBM
33  	return __ieee754_fmod(x,y);
34  #else
35  	double z;
36  	z = __ieee754_fmod(x,y);
37  	if(_LIB_VERSION == _IEEE_ ||isnan(y)||isnan(x)) return z;
38  	if(y==0.0) {
39  	        return __kernel_standard(x,y,27); /* fmod(x,0) */
40  	} else
41  	    return z;
42  #endif
43  }