src/data/calendar.h

   1 /*
   2 PSPP - a program for statistical analysis.
   3 Copyright (C) 2017 Free Software Foundation, Inc.
   4
   5 This program is free software: you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation, either version 3 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #ifndef CALENDAR_H
  20 #define CALENDAR_H 1
  21
  22 double calendar_gregorian_to_offset (int y, int m, int d, char **errorp);
  23 void calendar_offset_to_gregorian (int ofs, int *y, int *m, int *d, int *yd);
  24 int calendar_offset_to_year (int ofs);
  25 int calendar_offset_to_month (int ofs);
  26 int calendar_offset_to_mday (int ofs);
  27 int calendar_offset_to_yday (int ofs);
  28 int calendar_offset_to_wday (int ofs);
  29
  30 int calendar_days_in_month (int y, int m);
  31
  32 #endif /* calendar.h */