libc/newlib/libm/math/wf_atan2.c
Jeff Johnston b2250c70bd 2007-05-17 Cary R. <cygcary <at> yahoo.com>
* libm/math/w_atan2.c: Fix atan2 to be consistent with glibc
        (atan2(+0,-0), atan2(-0,-0) and atan(-0,+0))
        * libm/math/wf_atan2.c: Ditto.
2007-05-17 21:52:11 +00:00

47 lines
968 B
C

/* wf_atan2.c -- float version of w_atan2.c.
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
*/
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*
*/
/*
* wrapper atan2f(y,x)
*/
#include "fdlibm.h"
#include <errno.h>
#ifdef __STDC__
float atan2f(float y, float x) /* wrapper atan2f */
#else
float atan2f(y,x) /* wrapper atan2 */
float y,x;
#endif
{
return __ieee754_atan2f(y,x);
}
#ifdef _DOUBLE_IS_32BITS
#ifdef __STDC__
double atan2(double y, double x)
#else
double atan2(y,x)
double y,x;
#endif
{
return (double) atan2f((float) y, (float) x);
}
#endif /* defined(_DOUBLE_IS_32BITS) */