Mercurial > gnulib
view lib/log.c @ 40237:b1386ce84ff5
fatal-signal: Add function that lists the fatal signals.
* lib/fatal-signal.h (get_fatal_signals): New declaration.
* lib/fatal-signal.c (get_fatal_signals): New function.
author | Bruno Haible <bruno@clisp.org> |
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date | Sat, 16 Mar 2019 17:48:06 +0100 |
parents | b06060465f09 |
children |
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/* Logarithm. Copyright (C) 2012-2019 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>. */ #include <config.h> /* Specification. */ #include <math.h> double log (double x) #undef log { if (x <= 0.0) { /* Work around the OSF/1 5.1 bug. */ if (x == 0.0) /* Return -Infinity. */ return -1.0 / 0.0; /* Work around the NetBSD 5.1, Solaris 11.0 bug. */ else /* x < 0.0 */ /* Return NaN. */ return 0.0 / 0.0; } return log (x); }