expressions: Major work to improve error messages.

[pspp] / src / data / calendar.h

diff --git a/src/data/calendar.h b/src/data/calendar.h
index f46e71fec0b8c32fb97b763598176a8a63bfe533..ce3fcc2ee352f73193a44895fcaa70d63548a98e 100644 (file)
--- a/src/data/calendar.h
+++ b/src/data/calendar.h
@@ -1,10 +1,34 @@
+/*
+PSPP - a program for statistical analysis.
+Copyright (C) 2017 Free Software Foundation, Inc.
+
+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 3 of the License, 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, see <http://www.gnu.org/licenses/>.
+*/
+
 #ifndef CALENDAR_H
 #define CALENDAR_H 1
 
-typedef void calendar_error_func (void *aux, const char *, ...);
+struct fmt_settings;
+
+int *calendar_gregorian_adjust (int *y, int *m, int *d,
+                                const struct fmt_settings *);
+int calendar_raw_gregorian_to_offset (int y, int m, int d);
 
 double calendar_gregorian_to_offset (int y, int m, int d,
-                                     calendar_error_func *, void *aux);
+                                     const struct fmt_settings *,
+                                     char **errorp);
+
 void calendar_offset_to_gregorian (int ofs, int *y, int *m, int *d, int *yd);
 int calendar_offset_to_year (int ofs);
 int calendar_offset_to_month (int ofs);
@@ -12,4 +36,6 @@ int calendar_offset_to_mday (int ofs);
 int calendar_offset_to_yday (int ofs);
 int calendar_offset_to_wday (int ofs);
 
+int calendar_days_in_month (int y, int m);
+
 #endif /* calendar.h */