glibc/time/localtime.c

71 lines
1.8 KiB
C

/* Convert `time_t' to `struct tm' in local time zone.
Copyright (C) 1991-2024 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#include <time.h>
/* The C Standard says that localtime and gmtime return the same pointer. */
struct tm _tmbuf;
/* Return the `struct tm' representation of *T in local time,
using *TP to store the result. */
struct tm *
__localtime64_r (const __time64_t *t, struct tm *tp)
{
return __tz_convert (*t, 1, tp);
}
/* Provide a 32-bit variant if needed. */
#if __TIMESIZE != 64
struct tm *
__localtime_r (const time_t *t, struct tm *tp)
{
__time64_t t64 = *t;
return __localtime64_r (&t64, tp);
}
libc_hidden_def (__localtime64_r)
#endif
weak_alias (__localtime_r, localtime_r)
/* Return the `struct tm' representation of *T in local time. */
struct tm *
__localtime64 (const __time64_t *t)
{
return __tz_convert (*t, 1, &_tmbuf);
}
libc_hidden_def (__localtime64)
/* Provide a 32-bit variant if needed. */
#if __TIMESIZE != 64
struct tm *
localtime (const time_t *t)
{
__time64_t t64 = *t;
return __localtime64 (&t64);
}
libc_hidden_def (localtime)
#endif