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aeb22f4861
This is a followup to edfca3b7e5, which
added the 'posix_spawnp' module but not 'posix_spawn'.
* m4/gnulib-cache.m4: Add 'posix_spawn' module.
* gnulib-local/m4/clock_time.m4.diff: Adjust.
* configure.ac: Move 'gl_EARLY' use right after 'AC_PROG_CC'.
38 lines
1.1 KiB
C
38 lines
1.1 KiB
C
/* Logarithm.
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Copyright (C) 2012-2023 Free Software Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of the
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License, or (at your option) any later version.
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This file 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#include <config.h>
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/* Specification. */
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#include <math.h>
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double
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log (double x)
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#undef log
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{
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if (x <= 0.0)
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{
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/* Work around the OSF/1 5.1 bug. */
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if (x == 0.0)
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/* Return -Infinity. */
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return -1.0 / 0.0;
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/* Work around the NetBSD 5.1, Solaris 11.0 bug. */
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else /* x < 0.0 */
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/* Return NaN. */
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return 0.0 / 0.0;
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}
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return log (x);
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}
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