cc65/test/val/time-test.c

#include <stdio.h>
#include <string.h>
#include <time.h>

#define EXPECTSTR "3DD173D1 - Tue Nov 12 21:34:09 2002\n"
char result[0x100];

int fails = 0;

int main (void)
{
    struct tm tm;
    time_t t;
    char   buf[64];


    tm.tm_sec   = 9;
    tm.tm_min   = 34;
    tm.tm_hour  = 21;
    tm.tm_mday  = 12;
    tm.tm_mon   = 10;   /* 0..11, so this is november */
    tm.tm_year  = 102;  /* year - 1900, so this is 2002 */
    tm.tm_wday  = 2;    /* Tuesday */
    tm.tm_isdst = 0;

    /* Convert this broken down time into a time_t and back */
    t = mktime (&tm);
    printf ("Test passes if the following lines are\n"
            "all identical:\n");
    printf (EXPECTSTR);

    sprintf (result, "%08lX - %s", t, asctime (&tm));
    printf (result);
    if (strcmp(result, EXPECTSTR) != 0) { fails++; }

    sprintf (result, "%08lX - %s", t, asctime (gmtime (&t)));
    printf (result);
    if (strcmp(result, EXPECTSTR) != 0) { fails++; }

    strftime (buf, sizeof (buf), "%c", &tm);
    sprintf (result, "%08lX - %s\n", t, buf);
    printf (result);
    if (strcmp(result, EXPECTSTR) != 0) { fails++; }

    strftime (buf, sizeof (buf), "%a %b %d %H:%M:%S %Y", &tm);
    sprintf (result, "%08lX - %s\n", t, buf);
    printf (result);
    if (strcmp(result, EXPECTSTR) != 0) { fails++; }
    
    printf("fails: %d\n", fails);

    return fails;
}