mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-02 01:40:07 +00:00
aa630f590c
This patch fix the 3c0265394d commits
by correctly setting minimum architecture for modf PPC optimization
to power5+ instead of power5 (since only on power5+ round/ceil will
be inline to inline assembly).
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
/* Copyright (C) 2013 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 Library General Public License as
|
|
published by the Free Software Foundation; either version 2 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
|
|
Library General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
|
not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
#include <math_ldbl_opt.h>
|
|
|
|
double
|
|
__modf (double x, double *iptr)
|
|
{
|
|
if (__builtin_isinf (x))
|
|
{
|
|
*iptr = x;
|
|
return __copysign (0.0, x);
|
|
}
|
|
else if (__builtin_isnan (x))
|
|
{
|
|
*iptr = NAN;
|
|
return NAN;
|
|
}
|
|
|
|
if (x >= 0.0)
|
|
{
|
|
*iptr = __floor (x);
|
|
return (x - *iptr);
|
|
}
|
|
else
|
|
{
|
|
*iptr = __ceil (x);
|
|
return (x - *iptr);
|
|
}
|
|
}
|
|
weak_alias (__modf, modf)
|
|
#ifdef NO_LONG_DOUBLE
|
|
strong_alias (__modf, __modfl)
|
|
weak_alias (__modf, modfl)
|
|
#endif
|
|
#ifdef IS_IN_libm
|
|
# if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
|
|
compat_symbol (libm, __modf, modfl, GLIBC_2_0);
|
|
# endif
|
|
#elif LONG_DOUBLE_COMPAT(libc, GLIBC_2_0)
|
|
compat_symbol (libc, __modf, modfl, GLIBC_2_0);
|
|
#endif
|