mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
0ac5ae2335
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
36 lines
855 B
C
36 lines
855 B
C
/* @(#)w_hypot.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.
|
|
* ====================================================
|
|
*/
|
|
|
|
/*
|
|
* wrapper hypot(x,y)
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
|
|
|
|
double
|
|
__hypot (double x, double y)
|
|
{
|
|
double z = __ieee754_hypot(x,y);
|
|
if(__builtin_expect(!__finite(z), 0)
|
|
&& __finite(x) && __finite(y) && _LIB_VERSION != _IEEE_)
|
|
return __kernel_standard(x, y, 4); /* hypot overflow */
|
|
|
|
return z;
|
|
}
|
|
weak_alias (__hypot, hypot)
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (__hypot, __hypotl)
|
|
weak_alias (__hypot, hypotl)
|
|
#endif
|