mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-27 19:53:32 +08:00
78c4ef475d
Use it to implement fma and fmaf, if possible.
36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
/* Compute x * y + z as ternary operation.
|
|
Copyright (C) 1997, 2001, 2009 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
|
|
|
|
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 <math.h>
|
|
|
|
double
|
|
__fma (double x, double y, double z)
|
|
{
|
|
return (x * y) + z;
|
|
}
|
|
#ifndef __fma
|
|
weak_alias (__fma, fma)
|
|
#endif
|
|
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (__fma, __fmal)
|
|
weak_alias (__fmal, fmal)
|
|
#endif
|