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[emacs.git] / lib / time_r.c
blob31d010e437b49949f7e689b503e18a3f1f294bdb
1 /* Reentrant time functions like localtime_r.
3 Copyright (C) 2003, 2006-2007, 2010-2011 Free Software Foundation, Inc.
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3, or (at your option)
8 any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation,
17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
19 /* Written by Paul Eggert. */
21 #include <config.h>
23 #include <time.h>
25 static struct tm *
26 copy_tm_result (struct tm *dest, struct tm const *src)
28 if (! src)
29 return 0;
30 *dest = *src;
31 return dest;
35 struct tm *
36 gmtime_r (time_t const * restrict t, struct tm * restrict tp)
38 return copy_tm_result (tp, gmtime (t));
41 struct tm *
42 localtime_r (time_t const * restrict t, struct tm * restrict tp)
44 return copy_tm_result (tp, localtime (t));