54 lines
2.0 KiB
C
54 lines
2.0 KiB
C
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/* mktime variant that also uses an offset guess
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Copyright 2016-2018 Free Software Foundation, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this program; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <time.h>
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/* mktime_offset_t is a signed type wide enough to hold a UTC offset
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in seconds, and used as part of the type of the offset-guess
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argument to mktime_internal. Use time_t on platforms where time_t
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is signed, to be compatible with platforms like BeOS that export
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this implementation detail of mktime. On platforms where time_t is
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unsigned, GNU and POSIX code can assume 'int' is at least 32 bits
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which is wide enough for a UTC offset. */
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#if TIME_T_IS_SIGNED
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typedef time_t mktime_offset_t;
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#else
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typedef int mktime_offset_t;
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#endif
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time_t mktime_internal (struct tm *,
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struct tm * (*) (time_t const *, struct tm *),
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mktime_offset_t *);
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/* Although glibc source code uses leading underscores, Gnulib wants
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ordinary names.
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Portable standalone applications should supply a <time.h> that
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declares a POSIX-compliant localtime_r, for the benefit of older
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implementations that lack localtime_r or have a nonstandard one.
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Similarly for gmtime_r. See the gnulib time_r module for one way
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to implement this. */
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#undef __gmtime_r
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#undef __localtime_r
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#define __gmtime_r gmtime_r
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#define __localtime_r localtime_r
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#define __mktime_internal mktime_internal
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