vx32

Local 9vx git repository for patches.
git clone git://r-36.net/vx32
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w_atan2f.c (1074B)

      1 /* w_atan2f.c -- float version of w_atan2.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 #ifndef lint
     17 static char rcsid[] = "$FreeBSD: src/lib/msun/src/w_atan2f.c,v 1.7 2002/05/28 18:15:04 alfred Exp $";
     18 #endif
     19 
     20 /*
     21  * wrapper atan2f(y,x)
     22  */
     23 
     24 #include "math.h"
     25 #include "math_private.h"
     26 
     27 
     28 float
     29 atan2f(float y, float x)		/* wrapper atan2f */
     30 {
     31 #ifdef _IEEE_LIBM
     32 	return __ieee754_atan2f(y,x);
     33 #else
     34 	float z;
     35 	z = __ieee754_atan2f(y,x);
     36 	if(_LIB_VERSION == _IEEE_||isnanf(x)||isnanf(y)) return z;
     37 	if(x==(float)0.0&&y==(float)0.0) {
     38 		/* atan2f(+-0,+-0) */
     39 	        return (float)__kernel_standard((double)y,(double)x,103);
     40 	} else
     41 	    return z;
     42 #endif
     43 }