emacs/lib/time_r.c
Paul Eggert 834ff524f9 Update from Gnulib by running admin/merge-gnulib
In addition to the automatic changes, also do the following,
needed due to recent Gnulib changes.
* admin/merge-gnulib (AVOIDED_MODULES): Add btoc32,
c32_apply_type_test, c32_get_type_test, c32isalnum, c32rtomb,
c32tolower, c32toupper, localeinfo, mbrtoc32-regular.
Remove btowc, iswctype, mbrtowc, wcrtomb, wctype, wctype-h.
Also remove iswblank, iswdigit, iswxdigit, locale-h, raise,
stdarg-h, some of which perhaps could have been removed earlier.
* configure.ac (_REGEX_AVOID_UCHAR_H): New macro.
2026-05-26 21:57:20 -07:00

49 lines
1.5 KiB
C

/* Reentrant time functions like localtime_r.
Copyright (C) 2003, 2006-2007, 2010-2026 Free Software Foundation, Inc.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Paul Eggert. */
#include <config.h>
#include <time.h>
/* The replacement functions in this file are only used on native Windows.
They are thread-safe, because the gmtime() and localtime() functions
on native Windows — both in the ucrt and in the older MSVCRT — return a
pointer to a 'struct tm' in thread-local memory. */
static struct tm *
copy_tm_result (struct tm *dest, struct tm const *src)
{
if (! src)
return 0;
*dest = *src;
return dest;
}
struct tm *
gmtime_r (time_t const * restrict t, struct tm * restrict tp)
{
return copy_tm_result (tp, gmtime (t));
}
struct tm *
localtime_r (time_t const * restrict t, struct tm * restrict tp)
{
return copy_tm_result (tp, localtime (t));
}