mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 22:30:12 +00:00
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
123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
/* Manipulation of the bit representation of 'long double' quantities.
|
|
Copyright (C) 2000-2019 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 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/>. */
|
|
|
|
#ifndef _MATH_LDBL_H_
|
|
#define _MATH_LDBL_H_ 1
|
|
|
|
#include <stdint.h>
|
|
#include <endian.h>
|
|
|
|
/* A union which permits us to convert between a long double and
|
|
three 32 bit ints. */
|
|
|
|
#if __FLOAT_WORD_ORDER == __BIG_ENDIAN
|
|
|
|
typedef union
|
|
{
|
|
long double value;
|
|
struct
|
|
{
|
|
unsigned int empty0:32;
|
|
int sign_exponent:16;
|
|
unsigned int empty1:16;
|
|
uint32_t msw;
|
|
uint32_t lsw;
|
|
} parts;
|
|
} ieee_long_double_shape_type;
|
|
|
|
#endif
|
|
|
|
#if __FLOAT_WORD_ORDER == __LITTLE_ENDIAN
|
|
|
|
typedef union
|
|
{
|
|
long double value;
|
|
struct
|
|
{
|
|
uint32_t lsw;
|
|
uint32_t msw;
|
|
int sign_exponent:16;
|
|
unsigned int empty1:16;
|
|
unsigned int empty0:32;
|
|
} parts;
|
|
} ieee_long_double_shape_type;
|
|
|
|
#endif
|
|
|
|
/* Get three 32 bit ints from a double. */
|
|
|
|
#define GET_LDOUBLE_WORDS(exp,ix0,ix1,d) \
|
|
do { \
|
|
ieee_long_double_shape_type ew_u; \
|
|
ew_u.value = (d); \
|
|
(exp) = ew_u.parts.sign_exponent; \
|
|
(ix0) = ew_u.parts.msw; \
|
|
(ix1) = ew_u.parts.lsw; \
|
|
} while (0)
|
|
|
|
/* Set a double from two 32 bit ints. */
|
|
|
|
#define SET_LDOUBLE_WORDS(d,exp,ix0,ix1) \
|
|
do { \
|
|
ieee_long_double_shape_type iw_u; \
|
|
iw_u.parts.sign_exponent = (exp); \
|
|
iw_u.parts.msw = (ix0); \
|
|
iw_u.parts.lsw = (ix1); \
|
|
(d) = iw_u.value; \
|
|
} while (0)
|
|
|
|
/* Get the more significant 32 bits of a long double mantissa. */
|
|
|
|
#define GET_LDOUBLE_MSW(v,d) \
|
|
do { \
|
|
ieee_long_double_shape_type sh_u; \
|
|
sh_u.value = (d); \
|
|
(v) = sh_u.parts.msw; \
|
|
} while (0)
|
|
|
|
/* Set the more significant 32 bits of a long double mantissa from an int. */
|
|
|
|
#define SET_LDOUBLE_MSW(d,v) \
|
|
do { \
|
|
ieee_long_double_shape_type sh_u; \
|
|
sh_u.value = (d); \
|
|
sh_u.parts.msw = (v); \
|
|
(d) = sh_u.value; \
|
|
} while (0)
|
|
|
|
/* Get int from the exponent of a long double. */
|
|
|
|
#define GET_LDOUBLE_EXP(exp,d) \
|
|
do { \
|
|
ieee_long_double_shape_type ge_u; \
|
|
ge_u.value = (d); \
|
|
(exp) = ge_u.parts.sign_exponent; \
|
|
} while (0)
|
|
|
|
/* Set exponent of a long double from an int. */
|
|
|
|
#define SET_LDOUBLE_EXP(d,exp) \
|
|
do { \
|
|
ieee_long_double_shape_type se_u; \
|
|
se_u.value = (d); \
|
|
se_u.parts.sign_exponent = (exp); \
|
|
(d) = se_u.value; \
|
|
} while (0)
|
|
|
|
#endif /* math_ldbl.h */
|