11 printf("Testing mktime() by asking\n");
12 printf("What day of the week is July 4, 2001?\n");
14 time_str
.tm_year
= 2001 - 1900;
15 time_str
.tm_mon
= 7 - 1;
20 time_str
.tm_isdst
= -1;
21 if (mktime(&time_str
) == -1)
22 (void)puts("-unknown-");
24 (void)strftime(daybuf
, sizeof(daybuf
), "%A", &time_str
);