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Merge from coreutils.
author Paul Eggert <eggert@cs.ucla.edu>
date Mon, 03 Jul 2006 08:32:46 +0000
parents 76553bca8ed8
children
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1 /* Reentrant time functions like localtime_r.
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2
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3 Copyright (C) 2003, 2005, 2006 Free Software Foundation, Inc.
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4
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5 This program is free software; you can redistribute it and/or modify
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6 it under the terms of the GNU General Public License as published by
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7 the Free Software Foundation; either version 2, or (at your option)
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8 any later version.
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9
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10 This program is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 GNU General Public License for more details.
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14
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15 You should have received a copy of the GNU General Public License along
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16 with this program; if not, write to the Free Software Foundation,
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17 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
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18
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19 /* Written by Paul Eggert. */
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20
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21 #ifndef _TIME_R_H
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22 #define _TIME_R_H
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23
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24 /* Include <time.h> first, since it may declare these functions with
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25 signatures that disagree with POSIX, and we don't want to rename
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26 those declarations. */
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27 #include <time.h>
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28
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29 #if !HAVE_TIME_R_POSIX
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31 /* Don't bother with asctime_r and ctime_r, since these functions are
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32 not safe (like asctime and ctime, they can overrun their 26-byte
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33 output buffers when given outlandish struct tm values), and we
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34 don't want to encourage applications to use unsafe functions. Use
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35 strftime or even sprintf instead. */
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37 # undef gmtime_r
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38 # undef localtime_r
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39
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40 # define gmtime_r rpl_gmtime_r
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41 # define localtime_r rpl_localtime_r
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42
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43 /* See the POSIX:2001 specification
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44 <http://www.opengroup.org/susv3xsh/gmtime.html>. */
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45 struct tm *gmtime_r (time_t const * restrict, struct tm * restrict);
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46
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47 /* See the POSIX:2001 specification
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48 <http://www.opengroup.org/susv3xsh/localtime.html>. */
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49 struct tm *localtime_r (time_t const * restrict, struct tm * restrict);
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50 #endif
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51
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52 #endif