(split) Apply minor changes from v3.32 to v3.35 in the upstream.

[linuxjm/LDP_man-pages.git] / release / man3 / tzset.3

.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\"
.\" 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.\" manual page may be incorrect or out-of-date.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.
.\"
.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\" Modified Sun Jul 25 11:01:58 1993 by Rik Faith (faith@cs.unc.edu)
.\" Modified 2001-11-13, aeb
.\" Modified 2004-12-01 mtk and Martin Schulze <joey@infodrom.org>
.\"
.\" Japanese Version Copyright (c) 1998 NAKANO Takeo all rights reserved.
.\" Translated 1998-03-23, NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated 2000-09-14, Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2002-01-06, NAKANO Takeo
.\" Updated 2007-01-07, Akihiro MOTOKI, catch up to LDP v2.43
.\"
.\" WORD:       Wall Clock Time                 ÊÉ»þ·×»þ¹ï
.\" WORD:       Coordinated Universal Time      ¶¨ÄêÀ¤³¦»þ
.\" WORD:       daylight saving time            ¥µ¥Þ¡¼¥¿¥¤¥à
.\" WORD:       Prime Meridian                  ¥°¥ê¥Ë¥Ã¥¸»Ò¸áÀþ
.\"
.TH TZSET 3  2010-02-25 "" "Linux Programmer's Manual"
.SH ̾Á°
tzset, tzname, timezone, daylight \- »þ¹ï¤ÎÊÑ´¹¾ðÊó¤ò½é´ü²½¤¹¤ë
.SH ½ñ¼°
.nf
.B #include <time.h>
.sp
.B void tzset (void);
.sp
.BI "extern char *" tzname [2];
.BI "extern long " timezone ;
.BI "extern int " daylight ;
.fi
.sp
.in -4n
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.RB ( feature_test_macros (7)
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.in
.sp
.BR tzset ():
_POSIX_C_SOURCE\ >=\ 1 || _XOPEN_SOURCE || _POSIX_SOURCE
.br
.IR tzname :
_POSIX_C_SOURCE\ >=\ 1 || _XOPEN_SOURCE || _POSIX_SOURCE
.br
.IR timezone :
_SVID_SOURCE || _XOPEN_SOURCE
.br
.IR daylight :
_SVID_SOURCE || _XOPEN_SOURCE
.SH ÀâÌÀ
.BR tzset ()
´Ø¿ô¤Ï
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System V Ū¤Ê´Ä¶­¤Ç¤Ï¡¢¤³¤Î´Ø¿ô¤ÏÊÑ¿ô \fItimezone\fP (UTC ¤«¤é¤ÎÀ¾¸þ¤­¤ÎÉÿô) ¤È
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.BR tzfile (5)
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    TZ="NZST-12:00:00NZDT-13:00:00,M10.1.0,M3.3.0"
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localtime      ¥í¡¼¥«¥ë¥¿¥¤¥à¥¾¡¼¥ó¤Î¥Õ¥¡¥¤¥ë
posixrules     POSIX ¼°¤Î TZ ½ñ¼°¥ë¡¼¥ë
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.BR date (1),
.BR gettimeofday (2),
.BR time (2),
.BR ctime (3),
.BR getenv (3),
.BR tzfile (5)