]>
Commit | Line | Data |
---|---|---|
7683e140 RM |
1 | /* Convert UTC calendar time to simple time. Like mktime but assumes UTC. |
2 | ||
d4697bc9 | 3 | Copyright (C) 1994-2014 Free Software Foundation, Inc. |
fd26970f | 4 | This file is part of the GNU C Library. |
28f540f4 | 5 | |
fd26970f | 6 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
7 | modify it under the terms of the GNU Lesser General Public |
8 | License as published by the Free Software Foundation; either | |
9 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 10 | |
fd26970f UD |
11 | The GNU C Library is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 14 | Lesser General Public License for more details. |
28f540f4 | 15 | |
41bdb6e2 | 16 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
17 | License along with the GNU C Library; if not, see |
18 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 19 | |
7683e140 RM |
20 | #ifdef HAVE_CONFIG_H |
21 | # include <config.h> | |
22 | #endif | |
23 | ||
24 | #ifdef _LIBC | |
25 | # include <time.h> | |
26 | #else | |
27 | # include "timegm.h" | |
28 | ||
29 | /* Portable standalone applications should supply a "time_r.h" that | |
30 | declares a POSIX-compliant gmtime_r, for the benefit of older | |
31 | implementations that lack gmtime_r or have a nonstandard one. | |
32 | See the gnulib time_r module for one way to implement this. */ | |
33 | # include <time_r.h> | |
34 | # undef __gmtime_r | |
35 | # define __gmtime_r gmtime_r | |
36 | time_t __mktime_internal (struct tm *, | |
37 | struct tm * (*) (time_t const *, struct tm *), | |
38 | time_t *); | |
39 | #endif | |
28f540f4 RM |
40 | |
41 | time_t | |
7683e140 | 42 | timegm (struct tm *tmp) |
28f540f4 | 43 | { |
80fd7387 | 44 | static time_t gmtime_offset; |
28f540f4 | 45 | tmp->tm_isdst = 0; |
80fd7387 | 46 | return __mktime_internal (tmp, __gmtime_r, &gmtime_offset); |
28f540f4 | 47 | } |