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   1 /*
   2  * Copyright (c) 1988, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  *
   5  * This code is derived from software contributed to Berkeley by
   6  * Arthur David Olson of the National Cancer Institute.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  * 3. Neither the name of the University nor the names of its contributors
  17  *    may be used to endorse or promote products derived from this software
  18  *    without specific prior written permission.
  19  *
  20  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  21  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  23  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  26  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  28  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  29  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  30  * SUCH DAMAGE.
  31  *
  32  *      @(#)tzfile.h    8.1 (Berkeley) 6/2/93
  33  */
  35 #ifndef _TZFILE_H_
  36 #define _TZFILE_H_
  38 #define SECSPERMIN      60
  39 #define MINSPERHOUR     60
  40 #define HOURSPERDAY     24
  41 #define DAYSPERWEEK     7
  42 #define DAYSPERNYEAR    365
  43 #define DAYSPERLYEAR    366
  44 #define SECSPERHOUR     (SECSPERMIN * MINSPERHOUR)
  45 #define SECSPERDAY      ((long) SECSPERHOUR * HOURSPERDAY)
  46 #define MONSPERYEAR     12
  48 #define TM_SUNDAY       0
  49 #define TM_MONDAY       1
  50 #define TM_TUESDAY      2
  51 #define TM_WEDNESDAY    3
  52 #define TM_THURSDAY     4
  53 #define TM_FRIDAY       5
  54 #define TM_SATURDAY     6
  56 #define TM_JANUARY      0
  57 #define TM_FEBRUARY     1
  58 #define TM_MARCH        2
  59 #define TM_APRIL        3
  60 #define TM_MAY          4
  61 #define TM_JUNE         5
  62 #define TM_JULY         6
  63 #define TM_AUGUST       7
  64 #define TM_SEPTEMBER    8
  65 #define TM_OCTOBER      9
  66 #define TM_NOVEMBER     10
  67 #define TM_DECEMBER     11
  69 #define TM_YEAR_BASE    1900
  71 #define EPOCH_YEAR      1970
  72 #define EPOCH_WDAY      TM_THURSDAY
  74 /*
  75 ** Accurate only for the past couple of centuries;
  76 ** that will probably do.
  77 */
  79 #define isleap(y) ((((y) % 4) == 0 && ((y) % 100) != 0) || ((y) % 400) == 0)
  81 #endif /* !_TZFILE_H_ */