45 lines
997 B
C
45 lines
997 B
C
|
/* @(#)w_sqrt.c 5.1 93/09/24 */
|
||
|
|
/*
|
||
|
|
* ====================================================
|
||
|
|
* 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.
|
||
|
|
* ====================================================
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
__RCSID("$NetBSD: w_sqrtl.c,v 1.2 2013/11/20 11:39:00 joerg Exp $");
|
||
|
|
|
||
|
|
/*
|
||
|
|
* wrapper sqrtl(x)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "namespace.h"
|
||
|
|
#include "math.h"
|
||
|
|
#include "math_private.h"
|
||
|
|
|
||
|
|
#ifdef __HAVE_LONG_DOUBLE
|
||
|
|
|
||
|
|
__weak_alias(sqrtl, _sqrtl)
|
||
|
|
|
||
|
|
long double
|
||
|
|
sqrtl(long double x) /* wrapper sqrtl */
|
||
|
|
{
|
||
|
|
#ifdef _IEEE_LIBM
|
||
|
|
return __ieee754_sqrtl(x);
|
||
|
|
#else
|
||
|
|
long double z;
|
||
|
|
z = __ieee754_sqrtl(x);
|
||
|
|
if(_LIB_VERSION == _IEEE_ || isnan(x)) return z;
|
||
|
|
if(x<0.0) {
|
||
|
|
return __kernel_standard(x,x,226); /* sqrtl(negative) */
|
||
|
|
} else
|
||
|
|
return z;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* __HAVE_LONG_DOUBLE */
|