test/time.c

   1 #include <stdio.h>
   2 #include <time.h>
   3
   4 int main(int argc, char **argv) {
   5     time_t now, mk;
   6     char buf[26], *pbuf;
   7     struct tm tm;
   8
   9     now = time(NULL);
  10     printf("time: %d\n", (int)now);
  11
  12     pbuf = ctime(&now);
  13     printf("ctime: %s", pbuf);
  14     pbuf = ctime_r(&now, &buf[0]);
  15     printf("ctime_r: %s", buf);
  16
  17     mk = mktime(gmtime(&now));
  18     printf("gmtime: %d\n", (int)mk);
  19     mk = mktime(gmtime_r(&now, &tm));
  20     printf("gmtime_r: %d\n", (int)mk);
  21
  22     mk = mktime(localtime(&now));
  23     printf("localtime: %d\n", (int)mk);
  24     mk = mktime(localtime_r(&now, &tm));
  25     printf("localtime_r: %d\n", (int)mk);
  26
  27     pbuf = asctime(&tm);
  28     printf("asctime: %s", pbuf);
  29     pbuf = asctime_r(&tm, &buf[0]);
  30     printf("asctime_r: %s", buf);
  31
  32     return 0;
  33 }