time/tst-mktime.c

   1 #include <stdio.h>
   2 #include <string.h>
   3 #include <time.h>
   4
   5 int
   6 main (void)
   7 {
   8   struct tm time_str;
   9   char daybuf[20];
  10   int result;
  11
  12   time_str.tm_year = 2001 - 1900;
  13   time_str.tm_mon = 7 - 1;
  14   time_str.tm_mday = 4;
  15   time_str.tm_hour = 0;
  16   time_str.tm_min = 0;
  17   time_str.tm_sec = 1;
  18   time_str.tm_isdst = -1;
  19
  20   if (mktime (&time_str) == -1)
  21     {
  22       (void) puts ("-unknown-");
  23       result = 1;
  24     }
  25   else
  26     {
  27       (void) strftime (daybuf, sizeof (daybuf), "%A", &time_str);
  28       (void) puts (daybuf);
  29       result = strcmp (daybuf, "Wednesday") != 0;
  30     }
  31
  32   return result;
  33 }