1996-03-06 05:41:30 +08:00
|
|
|
/* 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
|
2011-10-12 23:27:51 +08:00
|
|
|
* software is freely granted, provided that this notice
|
1996-03-06 05:41:30 +08:00
|
|
|
* is preserved.
|
|
|
|
|
* ====================================================
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* wrapper hypotf(x,y)
|
|
|
|
|
*/
|
|
|
|
|
|
2005-12-14 23:06:39 +08:00
|
|
|
#include <math.h>
|
2011-10-08 17:16:04 +08:00
|
|
|
#include <math_private.h>
|
1996-03-06 05:41:30 +08:00
|
|
|
|
|
|
|
|
|
2011-10-12 23:27:51 +08:00
|
|
|
float
|
|
|
|
|
__hypotf(float x, float y)
|
1996-03-06 05:41:30 +08:00
|
|
|
{
|
2011-10-12 23:27:51 +08:00
|
|
|
float z = __ieee754_hypotf(x,y);
|
|
|
|
|
if(__builtin_expect(!__finitef(z), 0)
|
|
|
|
|
&& __finitef(x) && __finitef(y) && _LIB_VERSION != _IEEE_)
|
1996-03-06 05:41:30 +08:00
|
|
|
/* hypot overflow */
|
2011-10-12 23:27:51 +08:00
|
|
|
return __kernel_standard_f(x, y, 104);
|
|
|
|
|
|
|
|
|
|
return z;
|
1996-03-06 05:41:30 +08:00
|
|
|
}
|
|
|
|
|
weak_alias (__hypotf, hypotf)
|
