49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
|
/* w_hypotf.c -- float version of w_hypot.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.
|
||
|
|
* ====================================================
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <sys/cdefs.h>
|
||
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
||
|
|
__RCSID("$NetBSD: w_hypotf.c,v 1.7 2007/08/10 21:20:36 drochner Exp $");
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
* wrapper hypotf(x,y)
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "namespace.h"
|
||
|
|
#include "math.h"
|
||
|
|
#include "math_private.h"
|
||
|
|
|
||
|
|
#ifdef __weak_alias
|
||
|
|
__weak_alias(hypotf, _hypotf)
|
||
|
|
#endif
|
||
|
|
|
||
|
|
float
|
||
|
|
hypotf(float x, float y) /* wrapper hypotf */
|
||
|
|
{
|
||
|
|
#ifdef _IEEE_LIBM
|
||
|
|
return __ieee754_hypotf(x,y);
|
||
|
|
#else
|
||
|
|
float z;
|
||
|
|
z = __ieee754_hypotf(x,y);
|
||
|
|
if(_LIB_VERSION == _IEEE_) return z;
|
||
|
|
if((!finitef(z))&&finitef(x)&&finitef(y))
|
||
|
|
/* hypot overflow */
|
||
|
|
return (float)__kernel_standard((double)x,(double)y,104);
|
||
|
|
else
|
||
|
|
return z;
|
||
|
|
#endif
|
||
|
|
}
|