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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
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/* Compute sine and cosine of argument.
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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 <errno.h>
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#include <math.h>
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#include <math_private.h>
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#include <fenv_private.h>
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#include <math-underflow.h>
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#include <libm-alias-double.h>
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#define IN_SINCOS
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#include "s_sin.c"
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void
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__sincos (double x, double *sinx, double *cosx)
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{
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mynumber u;
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int k;
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SET_RESTORE_ROUND_53BIT (FE_TONEAREST);
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u.x = x;
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k = u.i[HIGH_HALF] & 0x7fffffff;
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if (k < 0x400368fd)
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{
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double a, da, y;
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/* |x| < 2^-27 => cos (x) = 1, sin (x) = x. */
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if (k < 0x3e400000)
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{
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if (k < 0x3e500000)
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math_check_force_underflow (x);
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*sinx = x;
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*cosx = 1.0;
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return;
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}
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/* |x| < 0.855469. */
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else if (k < 0x3feb6000)
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{
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*sinx = do_sin (x, 0);
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*cosx = do_cos (x, 0);
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return;
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}
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/* |x| < 2.426265. */
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y = hp0 - fabs (x);
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a = y + hp1;
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da = (y - a) + hp1;
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*sinx = copysign (do_cos (a, da), x);
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*cosx = do_sin (a, da);
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return;
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}
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/* |x| < 2^1024. */
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if (k < 0x7ff00000)
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{
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double a, da, xx;
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unsigned int n;
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/* If |x| < 105414350 use simple range reduction. */
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n = k < 0x419921FB ? reduce_sincos (x, &a, &da) : __branred (x, &a, &da);
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n = n & 3;
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if (n == 1 || n == 2)
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{
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a = -a;
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da = -da;
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}
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if (n & 1)
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{
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double *temp = cosx;
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cosx = sinx;
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sinx = temp;
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}
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*sinx = do_sin (a, da);
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xx = do_cos (a, da);
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*cosx = (n & 2) ? -xx : xx;
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return;
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}
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if (isinf (x))
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__set_errno (EDOM);
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*sinx = *cosx = x / x;
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}
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libm_alias_double (__sincos, sincos)
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