manual/examples/strftim.c

   1 /* Time Functions Example
   2    Copyright (C) 1991-2017 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU General Public License
   6    as published by the Free Software Foundation; either version 2
   7    of the License, or (at your option) any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, if not, see <http://www.gnu.org/licenses/>.
  16 */
  17
  18 #include <time.h>
  19 #include <stdio.h>
  20
  21 #define SIZE 256
  22
  23 int
  24 main (void)
  25 {
  26   char buffer[SIZE];
  27   time_t curtime;
  28   struct tm *loctime;
  29
  30   /* Get the current time. */
  31   curtime = time (NULL);
  32
  33   /* Convert it to local time representation. */
  34   loctime = localtime (&curtime);
  35
  36   /* Print out the date and time in the standard format. */
  37   fputs (asctime (loctime), stdout);
  38
  39 /*@group*/
  40   /* Print it out in a nice format. */
  41   strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime);
  42   fputs (buffer, stdout);
  43   strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime);
  44   fputs (buffer, stdout);
  45
  46   return 0;
  47 }
  48 /*@end group*/