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.\" Copyright (C) 2001 Andries Brouwer <aeb@cwi.nl>
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein. The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" Japanese Version Copyright (c) 2002 NAKANO Takeo all rights reserved.
.\" Translated Thu 3 Jan 2002 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\"
.TH TIMEGM 3 2007-07-26 "GNU" "Linux Programmer's Manual"
.SH ̾
timegm, timelocal \- gmtime localtime εմؿ
.SH
.nf
.B #include <time.h>
.sp
.BI "time_t timelocal(struct tm *" tm );
.sp
.BI "time_t timegm(struct tm *" tm );
.sp
.fi
.in -4n
glibc εǽޥ
.RB ( feature_test_macros (7)
):
.in
.sp
.BR timelocal (),
.BR timegm ():
_BSD_SOURCE || _SVID_SOURCE
.SH
.BR timelocal ()
ؿ
.BR timegm ()
ؿϡ줾
.BR localtime (3)
ؿ
.BR gmtime (3)
ؿεմؿǤ롣
.SH
δؿɸ GNU γĥǤ롣
BSD Ϥˤ¸ߤ롣
λѤ뤳ȡաȡ
.SH
.BR timelocal ()
ؿ POSIX ɸؿ
.BR mktime (3)
ƱΤǤ롣
ΤǡȤͳϤʤϤǤ롣
.LP
.BR timegm ()
ܿ褦ʤǼ¸ˤϡ
.B TZ
Ķѿ UTC ꤷƤ
.BR mktime (3)
Ƥǡ
.B TZ
ͤФ褤
㤨мΤ褦ˤʤ
.sp
.in +4n
.nf
#include <time.h>
#include <stdlib.h>
time_t my_timegm (struct tm *tm)
{
time_t ret;
char *tz;
tz = getenv("TZ");
setenv("TZ", "", 1);
tzset();
ret = mktime(tm);
if (tz)
setenv("TZ", tz, 1);
else
unsetenv("TZ");
tzset();
return ret;
}
.fi
.in
.SH Ϣ
.BR gmtime (3),
.BR localtime (3),
.BR mktime (3),
.BR tzset (3)
|
