mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 14:20:13 +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
104 lines
2.8 KiB
C
104 lines
2.8 KiB
C
/* Round long double value to long long int.
|
|
Copyright (C) 1997-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997 and
|
|
Jakub Jelinek <jj@ultra.linux.cz>, 1999.
|
|
|
|
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/>. */
|
|
|
|
#include <fenv.h>
|
|
#include <limits.h>
|
|
#include <math.h>
|
|
|
|
#include <math_private.h>
|
|
#include <libm-alias-ldouble.h>
|
|
#include <fix-fp-int-convert-overflow.h>
|
|
|
|
long long int
|
|
__llroundl (_Float128 x)
|
|
{
|
|
int64_t j0;
|
|
uint64_t i1, i0;
|
|
long long int result;
|
|
int sign;
|
|
|
|
GET_LDOUBLE_WORDS64 (i0, i1, x);
|
|
j0 = ((i0 >> 48) & 0x7fff) - 0x3fff;
|
|
sign = (i0 & 0x8000000000000000ULL) != 0 ? -1 : 1;
|
|
i0 &= 0x0000ffffffffffffLL;
|
|
i0 |= 0x0001000000000000LL;
|
|
|
|
if (j0 < 48)
|
|
{
|
|
if (j0 < 0)
|
|
return j0 < -1 ? 0 : sign;
|
|
else
|
|
{
|
|
i0 += 0x0000800000000000LL >> j0;
|
|
result = i0 >> (48 - j0);
|
|
}
|
|
}
|
|
else if (j0 < (int32_t) (8 * sizeof (long long int)) - 1)
|
|
{
|
|
if (j0 >= 112)
|
|
result = ((long long int) i0 << (j0 - 48)) | (i1 << (j0 - 112));
|
|
else
|
|
{
|
|
uint64_t j = i1 + (0x8000000000000000ULL >> (j0 - 48));
|
|
if (j < i1)
|
|
++i0;
|
|
|
|
if (j0 == 48)
|
|
result = (long long int) i0;
|
|
else
|
|
{
|
|
result = ((long long int) i0 << (j0 - 48)) | (j >> (112 - j0));
|
|
#ifdef FE_INVALID
|
|
if (sign == 1 && result == LLONG_MIN)
|
|
/* Rounding brought the value out of range. */
|
|
feraiseexcept (FE_INVALID);
|
|
#endif
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* The number is too large. Unless it rounds to LLONG_MIN,
|
|
FE_INVALID must be raised and the return value is
|
|
unspecified. */
|
|
#ifdef FE_INVALID
|
|
if (FIX_LDBL_LLONG_CONVERT_OVERFLOW
|
|
&& !(sign == -1 && x > (_Float128) LLONG_MIN - L(0.5)))
|
|
{
|
|
feraiseexcept (FE_INVALID);
|
|
return sign == 1 ? LLONG_MAX : LLONG_MIN;
|
|
}
|
|
else if (!FIX_LDBL_LLONG_CONVERT_OVERFLOW
|
|
&& x <= (_Float128) LLONG_MIN - L(0.5))
|
|
{
|
|
/* If truncation produces LLONG_MIN, the cast will not raise
|
|
the exception, but may raise "inexact". */
|
|
feraiseexcept (FE_INVALID);
|
|
return LLONG_MIN;
|
|
}
|
|
#endif
|
|
return (long long int) x;
|
|
}
|
|
|
|
return sign * result;
|
|
}
|
|
|
|
libm_alias_ldouble (__llround, llround)
|