mirror of
https://sourceware.org/git/glibc.git
synced 2025-01-12 20:20:18 +00:00
0ac5ae2335
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* Copyright (C) 1991, 1992, 1997, 2011 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include <errno.h>
|
|
#include <math.h>
|
|
|
|
#ifndef __GNUC__
|
|
#error This file uses GNU C extensions; you must compile with GCC.
|
|
#endif
|
|
|
|
/* Return the square root of X. */
|
|
double
|
|
__ieee754_sqrt (x)
|
|
double x;
|
|
{
|
|
register double result;
|
|
asm ("fsqrtd %1, %0" : "=f" (result) : "f" (x));
|
|
return result;
|
|
}
|
|
strong_alias (__ieee754_sqrt, __sqrt_finite)
|