Go to most recent revision |
Blame |
Last modification |
View Log
| RSS feed
/* w_sqrtf.c -- float version of w_sqrt.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.
* ====================================================
*/
#ifndef lint
static char rcsid
[] = "$\Id: w_sqrtf.c,v 1.2 1995/05/30 05:51:47 rgrimes Exp $";
#endif
/*
* wrapper sqrtf(x)
*/
#include "math.h"
#include "math_private.h"
#ifdef __STDC__
float sqrtf
(float x
) /* wrapper sqrtf */
#else
float sqrt(x
) /* wrapper sqrtf */
float x
;
#endif
{
#ifdef _IEEE_LIBM
return __ieee754_sqrtf
(x
);
#else
float z
;
z
= __ieee754_sqrtf
(x
);
if(_LIB_VERSION
== _IEEE_
|| isnanf
(x
)) return z
;
if(x
<(float)0.0) {
/* sqrtf(negative) */
return (float)__kernel_standard
((double)x
,(double)x
,126);
} else
return z
;
#endif
}