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maint: Run 'make update-copyright'
author Paul Eggert <eggert@cs.ucla.edu>
date Tue, 01 Jan 2019 00:25:11 +0100
parents 10eb9086bea0
children
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1 /* Time internal interface
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2
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3 Copyright 2015-2019 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, see <https://www.gnu.org/licenses/>. */
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17
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18 /* Written by Paul Eggert. */
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19
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20 /* A time zone rule. */
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21 struct tm_zone
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22 {
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23 /* More abbreviations, should they be needed. Their TZ_IS_SET
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24 members are zero. */
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25 struct tm_zone *next;
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26
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27 #if HAVE_TZNAME && !HAVE_TM_ZONE
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28 /* Copies of recent strings taken from tzname[0] and tzname[1].
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29 The copies are in ABBRS, so that they survive tzset. Null if unknown. */
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30 char *tzname_copy[2];
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31 #endif
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32
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33 /* If nonzero, the rule represents the TZ environment variable set
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34 to the first "abbreviation" (this may be the empty string).
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35 Otherwise, it represents an unset TZ. */
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36 char tz_is_set;
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37
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38 /* A sequence of null-terminated strings packed next to each other.
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39 The strings are followed by an extra null byte. If TZ_IS_SET,
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40 there must be at least one string and the first string (which is
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41 actually a TZ environment value) may be empty. Otherwise all
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42 strings must be nonempty.
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43
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44 Abbreviations are stored here because otherwise the values of
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45 tm_zone and/or tzname would be dead after changing TZ and calling
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46 tzset. Abbreviations never move once allocated, and are live
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47 until tzfree is called. */
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48 char abbrs[FLEXIBLE_ARRAY_MEMBER];
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49 };