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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
113 lines
2.4 KiB
C
113 lines
2.4 KiB
C
/* Compute remainder and a congruent to the quotient.
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Copyright (C) 1997-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <math.h>
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#include <math_private.h>
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#include <libm-alias-ldouble.h>
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static const long double zero = 0.0;
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long double
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__remquol (long double x, long double p, int *quo)
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{
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int32_t ex,ep,hx,hp;
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uint32_t sx,lx,lp;
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int cquo,qs;
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GET_LDOUBLE_WORDS (ex, hx, lx, x);
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GET_LDOUBLE_WORDS (ep, hp, lp, p);
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sx = ex & 0x8000;
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qs = (sx ^ (ep & 0x8000)) >> 15;
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ep &= 0x7fff;
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ex &= 0x7fff;
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/* Purge off exception values. */
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if ((ep | hp | lp) == 0)
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return (x * p) / (x * p); /* p = 0 */
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if ((ex == 0x7fff) /* x not finite */
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|| ((ep == 0x7fff) /* p is NaN */
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&& (((hp & 0x7fffffff) | lp) != 0)))
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return (x * p) / (x * p);
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if (ep <= 0x7ffb)
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x = __ieee754_fmodl (x, 8 * p); /* now x < 8p */
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if (((ex - ep) | (hx - hp) | (lx - lp)) == 0)
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{
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*quo = qs ? -1 : 1;
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return zero * x;
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}
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x = fabsl (x);
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p = fabsl (p);
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cquo = 0;
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if (ep <= 0x7ffc && x >= 4 * p)
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{
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x -= 4 * p;
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cquo += 4;
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}
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if (ep <= 0x7ffd && x >= 2 * p)
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{
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x -= 2 * p;
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cquo += 2;
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}
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if (ep < 0x0002)
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{
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if (x + x > p)
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{
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x -= p;
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++cquo;
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if (x + x >= p)
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{
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x -= p;
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++cquo;
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}
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}
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}
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else
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{
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long double p_half = 0.5 * p;
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if (x > p_half)
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{
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x -= p;
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++cquo;
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if (x >= p_half)
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{
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x -= p;
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++cquo;
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}
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}
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}
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*quo = qs ? -cquo : cquo;
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/* Ensure correct sign of zero result in round-downward mode. */
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if (x == 0.0L)
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x = 0.0L;
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if (sx)
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x = -x;
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return x;
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}
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libm_alias_ldouble (__remquo, remquo)
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