kc3-lang/gnulib/lib/timegm.c

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• Hash : 3ac95524
  Author :
  Date : 2007-02-12T18:49:19
  

  New module 'time', so that apps can include <time.h> as per
  POSIX and GNU instead of separate include files like time_r.h
  and timegm.h.  This implementation tries out a simpler approach
  for replacing decls in standard include files (as compared to
  the string module), somewhat as an experiment.
  
  * config/srclist.txt: Comment out mktime.c for now.
  * doc/gnulib-tool.texi (Initial import): Don't use time_r as an example
  since it doesn't apply any more.  Use generic wording instead.
  * MODULES.html.sh (Support for systems lacking POSIX:2001): New module
  'time'.
  * lib/time_.h, m4/time_h.m4, modules/time: New files.
  * lib/strptime.h, lib/time_r.h, lib/timegm.h: Remove.
  * lib/mktime.c: Include config.h depending on _LIBC, not HAVE_CONFIG_H.
  Don't include <sys/types.h>; no longer needed since we assume C89.
  * lib/mktime.c: Don't include "time_r.h"; no longer needed.
  * lib/strftime.c: Likewise.
  * lib/time_r.c: Likewise.
  * lib/nanosleep.c (nanosleep): #undef after include files, not before.
  * lib/nanosleep.c: Include <time.h> first, to check interface.
  * lib/strptime.c: Likewise.
  * lib/time_r.c: Likewise.
  * lib/timegm.c: Likewise.
  * lib/strptime.c: Don't include strptime.h or time_r.h; no longer
  needed.
  * lib/timegm.c: Don't include timegm.h; no longer needed.
  * lib/timespec.h: Don't include <sys/time.h> before <time.h>;
  time.h now handles any problems in that area.
  (struct timespec, nanosleep): Remove; time.h now arranges for these.
  * lib/xnanosleep.c: Don't include timespec.h; no longer needed now
  that time.h defines struct timespec.
  * m4/nanosleep.m4 (gl_FUNC_NANOSLEEP): Check that nanosleep is declared.
  Set REPLACE_NANOSLEEP.  Don't AC_DEFINE nanosleep; the time module now
  handles that.
  * m4/strptime.m4 (gl_FUNC_STPRTIME): Set REPLACE_STRPTIME.
  * m4/time_r.m4 (gl_TIME_R): Don't define HAVE_TIME_R_POSIX; no longer
  needed.  Set REPLACE_LOCALTIME.
  * m4/timegm.m4 (gl_FUNC_TIMEGM): Set REPLACE_TIMEGM.
  * m4/timespec.m4 (gl_CHECK_TYPE_STRUCT_TIMESPEC): Move to time_h.m4.
  (gl_TIMESPEC): Don't check for sys/time.h or struct timespec or
  nanosleep; time_h.m4 now does that.  Don't require
  gl_USE_SYSTEM_EXTENSIONS; no longer needed directly, and the time
  module handles this now.
  * modules/getdate (Depends-on): Remove timespec.  Add time.
  * modules/nanosleep (Depends-on): Likewise.
  * modules/stat-time (Depends-on): Likewise.
  * modules/nanosleep (Include): Include time.h, not timespec.h.
  * modules/strptime (Files): Remove lib/strptime.h.
  (Depends-on): Add extensions, time.
  (Include): Include time.h, not strptime.h.
  * modules/time_r (Files): Remove lib/time_r.h.
  (Depends-on): Add time.
  (Include): Include time.h, not time_r.h.
  * modules/timegm: Likewise.
  * modules/timespec (Description): Now does timespec-related decls
  of our own, instead of struct timespec itself.
  (Depends-on): Add time; remove extensions.
  (Maintainer): Add self.
  * modules/utimecmp (Depends-on): Add time; remove timespec.
  * modules/utimens (Depends-on): Likewise.
  * modules/xnanosleep (Depends-on): Likewise.
  

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• lib/timegm.c

• /* Convert UTC calendar time to simple time.  Like mktime but assumes UTC.
  
     Copyright (C) 1994, 1997, 2003, 2004, 2006, 2007 Free Software
     Foundation, Inc.  This file is part of the GNU C Library.
  
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation; either version 2, or (at your option)
     any later version.
  
     This program 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 General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program; if not, write to the Free Software Foundation,
     Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  
  #ifndef _LIBC
  # include <config.h>
  #endif
  
  #include <time.h>
  
  #ifndef _LIBC
  # undef __gmtime_r
  # define __gmtime_r gmtime_r
  # define __mktime_internal mktime_internal
  time_t __mktime_internal (struct tm *,
  			  struct tm * (*) (time_t const *, struct tm *),
  			  time_t *);
  #endif
  
  time_t
  timegm (struct tm *tmp)
  {
    static time_t gmtime_offset;
    tmp->tm_isdst = 0;
    return __mktime_internal (tmp, __gmtime_r, &gmtime_offset);
  }
  

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