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annotate lib/timegm.c @ 10622:ac6f431cc95d

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New module 'fclose'.
author Bruno Haible <bruno@clisp.org>
date Sat, 11 Oct 2008 14:18:29 +0200
parents b31580167c2b
children 465038ef6bc4
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1 /* Convert UTC calendar time to simple time. Like mktime but assumes UTC.
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2
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3 Copyright (C) 1994, 1997, 2003, 2004, 2006, 2007 Free Software
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4 Foundation, Inc. This file is part of the GNU C Library.
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5
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6 This program is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program; if not, write to the Free Software Foundation,
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18 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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19
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20 #ifndef _LIBC
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21 # include <config.h>
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22 #endif
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23
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24 #include <time.h>
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25
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26 #ifndef _LIBC
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27 # undef __gmtime_r
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28 # define __gmtime_r gmtime_r
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29 # define __mktime_internal mktime_internal
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30 time_t __mktime_internal (struct tm *,
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31 struct tm * (*) (time_t const *, struct tm *),
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32 time_t *);
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33 #endif
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34
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35 time_t
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36 timegm (struct tm *tmp)
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37 {
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38 static time_t gmtime_offset;
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39 tmp->tm_isdst = 0;
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40 return __mktime_internal (tmp, __gmtime_r, &gmtime_offset);
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41 }