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glibc  2.9
Defines | Functions
test_time.c File Reference
#include <stdio.h>
#include <stdlib.h>
#include <time.h>

Go to the source code of this file.

Defines

#define SIZE   256

Functions

int main (int argc, char **argv)

Define Documentation

#define SIZE   256

Function Documentation

int main ( int  argc,
char **  argv 
)

Definition at line 25 of file test_time.c.

{
  time_t t;
  register struct tm *tp;
  struct tm tbuf;
  int lose = 0;

  --argc;
  ++argv;

  do
    {
      char buf[BUFSIZ];
      if (argc > 0)
       {
         static char buf[BUFSIZ];
         sprintf(buf, "TZ=%s", *argv);
         if (putenv(buf))
           {
             puts("putenv failed.");
             lose = 1;
           }
         else
           puts (buf);
       }
      tzset();
      tbuf.tm_year = 72;
      tbuf.tm_mon = 0;
      tbuf.tm_mday = 31;
      tbuf.tm_hour = 6;
      tbuf.tm_min = 14;
      tbuf.tm_sec = 50;
      tbuf.tm_isdst = -1;
    doit:;
      t = mktime(&tbuf);
      if (t == (time_t) -1)
       {
         puts("mktime() failed?");
         lose = 1;
       }
      tp = localtime(&t);
      if (tp == NULL)
       {
         puts("localtime() failed.");
         lose = 1;
       }
      else if (strftime(buf, sizeof(buf), "%a %b %d %X %Z %Y", tp) == 0)
       {
         puts("strftime() failed.");
         lose = 1;
       }
      else
       puts(buf);
      if (tbuf.tm_year == 101)
       {
         tbuf.tm_year = 97;
         tbuf.tm_mon = 0;
         goto doit;
       }
      ++argv;
    } while (--argc > 0);

  {
#define       SIZE   256
    char buffer[SIZE];
    time_t curtime;
    struct tm *loctime;

    curtime = time (NULL);

    loctime = localtime (&curtime);

    fputs (asctime (loctime), stdout);

    strftime (buffer, SIZE, "Today is %A, %B %d.\n", loctime);
    fputs (buffer, stdout);
    strftime (buffer, SIZE, "The time is %I:%M %p.\n", loctime);
    fputs (buffer, stdout);

    loctime->tm_year = 72;
    loctime->tm_mon = 8;
    loctime->tm_mday = 12;
    loctime->tm_hour = 20;
    loctime->tm_min = 49;
    loctime->tm_sec = 05;
    curtime = mktime (loctime);
    strftime (buffer, SIZE, "%D %T was %w the %jth.\n", loctime);
    fputs (buffer, stdout);
  }

  return (lose ? EXIT_FAILURE : EXIT_SUCCESS);
}

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