mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/* Copyright (C) 2005-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Richard Henderson <rth@redhat.com>, 2005.
|
|
|
|
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, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdbool.h>
|
|
#include <math.h>
|
|
#include <complex.h>
|
|
|
|
attribute_hidden
|
|
long double _Complex
|
|
__multc3 (long double a, long double b, long double c, long double d)
|
|
{
|
|
long double ac, bd, ad, bc, x, y;
|
|
|
|
ac = a * c;
|
|
bd = b * d;
|
|
ad = a * d;
|
|
bc = b * c;
|
|
|
|
x = ac - bd;
|
|
y = ad + bc;
|
|
|
|
if (isnan (x) && isnan (y))
|
|
{
|
|
/* Recover infinities that computed as NaN + iNaN. */
|
|
bool recalc = 0;
|
|
if (isinf (a) || isinf (b))
|
|
{
|
|
/* z is infinite. "Box" the infinity and change NaNs in
|
|
the other factor to 0. */
|
|
a = copysignl (isinf (a) ? 1 : 0, a);
|
|
b = copysignl (isinf (b) ? 1 : 0, b);
|
|
if (isnan (c)) c = copysignl (0, c);
|
|
if (isnan (d)) d = copysignl (0, d);
|
|
recalc = 1;
|
|
}
|
|
if (isinf (c) || isinf (d))
|
|
{
|
|
/* w is infinite. "Box" the infinity and change NaNs in
|
|
the other factor to 0. */
|
|
c = copysignl (isinf (c) ? 1 : 0, c);
|
|
d = copysignl (isinf (d) ? 1 : 0, d);
|
|
if (isnan (a)) a = copysignl (0, a);
|
|
if (isnan (b)) b = copysignl (0, b);
|
|
recalc = 1;
|
|
}
|
|
if (!recalc
|
|
&& (isinf (ac) || isinf (bd)
|
|
|| isinf (ad) || isinf (bc)))
|
|
{
|
|
/* Recover infinities from overflow by changing NaNs to 0. */
|
|
if (isnan (a)) a = copysignl (0, a);
|
|
if (isnan (b)) b = copysignl (0, b);
|
|
if (isnan (c)) c = copysignl (0, c);
|
|
if (isnan (d)) d = copysignl (0, d);
|
|
recalc = 1;
|
|
}
|
|
if (recalc)
|
|
{
|
|
x = INFINITY * (a * c - b * d);
|
|
y = INFINITY * (a * d + b * c);
|
|
}
|
|
}
|
|
|
|
return x + I * y;
|
|
}
|