time/tst-strptime2.c

   1 #include <limits.h>
   2 #include <stdio.h>
   3 #include <time.h>
   4
   5
   6 static const struct
   7 {
   8   const char *fmt;
   9   long int gmtoff;
  10 } tests[] =
  11   {
  12     { "1113472456 +1000", 36000 },
  13     { "1113472456 -1000", -36000 },
  14     { "1113472456 +10", 36000 },
  15     { "1113472456 -10", -36000 },
  16     { "1113472456 +1030", 37800 },
  17     { "1113472456 -1030", -37800 },
  18     { "1113472456 +0030", 1800 },
  19     { "1113472456 -0030", -1800 },
  20     { "1113472456 -1330", LONG_MAX },
  21     { "1113472456 +1330", LONG_MAX },
  22     { "1113472456 -1060", LONG_MAX },
  23     { "1113472456 +1060", LONG_MAX },
  24     { "1113472456  1030", LONG_MAX },
  25   };
  26 #define ntests (sizeof (tests) / sizeof (tests[0]))
  27
  28
  29 int
  30 main (void)
  31 {
  32   int result = 0;
  33
  34   for (int i = 0; i < ntests; ++i)
  35     {
  36       struct tm tm;
  37
  38       if (strptime (tests[i].fmt, "%s %z", &tm) == NULL)
  39         {
  40           if (tests[i].gmtoff != LONG_MAX)
  41             {
  42               printf ("round %d: strptime unexpectedly failed\n", i);
  43               result = 1;
  44             }
  45           continue;
  46         }
  47
  48       if (tm.tm_gmtoff != tests[i].gmtoff)
  49         {
  50           printf ("round %d: tm_gmtoff is %ld\n", i, (long int) tm.tm_gmtoff);
  51           result = 1;
  52         }
  53     }
  54
  55   if (result == 0)
  56     puts ("all OK");
  57
  58   return 0;
  59 }