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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
98 lines
3.1 KiB
C
98 lines
3.1 KiB
C
/* Return classification value corresponding to 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 and
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Jakub Jelinek <jj@ultra.linux.cz>, 1999.
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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 <math_ldbl_opt.h>
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/*
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* hx lx
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* +NaN 7ffn nnnn nnnn nnnn xxxx xxxx xxxx xxxx
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* -NaN fffn nnnn nnnn nnnn xxxx xxxx xxxx xxxx
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* +Inf 7ff0 0000 0000 0000 xxxx xxxx xxxx xxxx
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* -Inf fff0 0000 0000 0000 xxxx xxxx xxxx xxxx
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* +0 0000 0000 0000 0000 xxxx xxxx xxxx xxxx
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* -0 8000 0000 0000 0000 xxxx xxxx xxxx xxxx
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* +normal 0360 0000 0000 0000 0000 0000 0000 0000 (smallest)
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* -normal 8360 0000 0000 0000 0000 0000 0000 0000 (smallest)
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* +normal 7fef ffff ffff ffff 7c8f ffff ffff fffe (largest)
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* +normal ffef ffff ffff ffff fc8f ffff ffff fffe (largest)
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* +denorm 0360 0000 0000 0000 8000 0000 0000 0001 (largest)
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* -denorm 8360 0000 0000 0000 0000 0000 0000 0001 (largest)
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* +denorm 000n nnnn nnnn nnnn xxxx xxxx xxxx xxxx
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* -denorm 800n nnnn nnnn nnnn xxxx xxxx xxxx xxxx
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*/
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int
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___fpclassifyl (long double x)
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{
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uint64_t hx, lx;
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int retval = FP_NORMAL;
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double xhi, xlo;
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ldbl_unpack (x, &xhi, &xlo);
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EXTRACT_WORDS64 (hx, xhi);
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if ((hx & 0x7ff0000000000000ULL) == 0x7ff0000000000000ULL) {
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/* +/-NaN or +/-Inf */
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if (hx & 0x000fffffffffffffULL) {
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/* +/-NaN */
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retval = FP_NAN;
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} else {
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retval = FP_INFINITE;
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}
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} else {
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/* +/-zero or +/- normal or +/- denormal */
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if (hx & 0x7fffffffffffffffULL) {
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/* +/- normal or +/- denormal */
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if ((hx & 0x7ff0000000000000ULL) > 0x0360000000000000ULL) {
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/* +/- normal */
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retval = FP_NORMAL;
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} else {
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if ((hx & 0x7ff0000000000000ULL) == 0x0360000000000000ULL) {
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EXTRACT_WORDS64 (lx, xlo);
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if ((lx & 0x7fffffffffffffff) /* lower is non-zero */
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&& ((lx^hx) & 0x8000000000000000ULL)) { /* and sign differs */
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/* +/- denormal */
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retval = FP_SUBNORMAL;
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} else {
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/* +/- normal */
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retval = FP_NORMAL;
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}
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} else {
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/* +/- denormal */
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retval = FP_SUBNORMAL;
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}
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}
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} else {
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/* +/- zero */
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retval = FP_ZERO;
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}
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}
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return retval;
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}
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long_double_symbol (libm, ___fpclassifyl, __fpclassifyl);
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#ifdef __LONG_DOUBLE_MATH_OPTIONAL
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libm_hidden_ver (___fpclassifyl, __fpclassifyl)
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#else
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libm_hidden_def (__fpclassifyl)
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#endif
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