mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-28 21:41:08 +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
80 lines
2.7 KiB
C
80 lines
2.7 KiB
C
/* Check for underflow and force underflow exceptions.
|
|
Copyright (C) 2015-2019 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_UNDERFLOW_H
|
|
#define _MATH_UNDERFLOW_H 1
|
|
|
|
#include <float.h>
|
|
#include <math.h>
|
|
|
|
#include <math-barriers.h>
|
|
|
|
#define fabs_tg(x) __MATH_TG ((x), (__typeof (x)) __builtin_fabs, (x))
|
|
|
|
/* These must be function-like macros because some __MATH_TG
|
|
implementations macro-expand the function-name argument before
|
|
concatenating a suffix to it. */
|
|
#define min_of_type_f() FLT_MIN
|
|
#define min_of_type_() DBL_MIN
|
|
#define min_of_type_l() LDBL_MIN
|
|
#define min_of_type_f128() FLT128_MIN
|
|
|
|
#define min_of_type(x) __MATH_TG ((x), (__typeof (x)) min_of_type_, ())
|
|
|
|
/* If X (which is not a NaN) is subnormal, force an underflow
|
|
exception. */
|
|
#define math_check_force_underflow(x) \
|
|
do \
|
|
{ \
|
|
__typeof (x) force_underflow_tmp = (x); \
|
|
if (fabs_tg (force_underflow_tmp) \
|
|
< min_of_type (force_underflow_tmp)) \
|
|
{ \
|
|
__typeof (force_underflow_tmp) force_underflow_tmp2 \
|
|
= force_underflow_tmp * force_underflow_tmp; \
|
|
math_force_eval (force_underflow_tmp2); \
|
|
} \
|
|
} \
|
|
while (0)
|
|
/* Likewise, but X is also known to be nonnegative. */
|
|
#define math_check_force_underflow_nonneg(x) \
|
|
do \
|
|
{ \
|
|
__typeof (x) force_underflow_tmp = (x); \
|
|
if (force_underflow_tmp \
|
|
< min_of_type (force_underflow_tmp)) \
|
|
{ \
|
|
__typeof (force_underflow_tmp) force_underflow_tmp2 \
|
|
= force_underflow_tmp * force_underflow_tmp; \
|
|
math_force_eval (force_underflow_tmp2); \
|
|
} \
|
|
} \
|
|
while (0)
|
|
/* Likewise, for both real and imaginary parts of a complex
|
|
result. */
|
|
#define math_check_force_underflow_complex(x) \
|
|
do \
|
|
{ \
|
|
__typeof (x) force_underflow_complex_tmp = (x); \
|
|
math_check_force_underflow (__real__ force_underflow_complex_tmp); \
|
|
math_check_force_underflow (__imag__ force_underflow_complex_tmp); \
|
|
} \
|
|
while (0)
|
|
|
|
#endif /* math-underflow.h */
|