mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
2b778ceb40
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* Copyright (C) 2012-2021 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/>. */
|
|
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
#include <float.h>
|
|
#include <libm-alias-finite.h>
|
|
|
|
static const long double log10_high = 0x2.4d763776aaap+0L;
|
|
static const long double log10_low = 0x2.b05ba95b58ae0b4c28a38a3fb4p-48L;
|
|
|
|
long double
|
|
__ieee754_exp10l (long double arg)
|
|
{
|
|
union ibm_extended_long_double u;
|
|
long double arg_high, arg_low;
|
|
long double exp_high, exp_low;
|
|
|
|
if (!isfinite (arg))
|
|
return __ieee754_expl (arg);
|
|
if (arg < LDBL_MIN_10_EXP - LDBL_DIG - 10)
|
|
return LDBL_MIN * LDBL_MIN;
|
|
else if (arg > LDBL_MAX_10_EXP + 1)
|
|
return LDBL_MAX * LDBL_MAX;
|
|
else if (fabsl (arg) < 0x1p-109L)
|
|
return 1.0L;
|
|
|
|
u.ld = arg;
|
|
arg_high = u.d[0].d;
|
|
arg_low = u.d[1].d;
|
|
exp_high = arg_high * log10_high;
|
|
exp_low = arg_high * log10_low + arg_low * M_LN10l;
|
|
return __ieee754_expl (exp_high) * __ieee754_expl (exp_low);
|
|
}
|
|
libm_alias_finite (__ieee754_exp10l, __exp10l)
|