82 lines
2.5 KiB
C++
82 lines
2.5 KiB
C++
/* Special Conformance Test 20.2.0.1: Verification of time, asctime, ctime, */
|
|
/* localtime, gmtime, mktime, difftime */
|
|
/* */
|
|
/* The tester needs to verify that the printed time is accurate for the */
|
|
/* current clock setting of machine. */
|
|
|
|
#include <stddef.h>
|
|
#include <time.h>
|
|
|
|
int printf(const char *, ...);
|
|
|
|
int main (void)
|
|
{
|
|
time_t secondTime, theTime, *tptr = &theTime;
|
|
char *timeString;
|
|
struct tm *TM;
|
|
double d;
|
|
|
|
|
|
theTime = time (tptr); /* call time to get current date & time */
|
|
if (theTime == -1) /* represented as an integral type */
|
|
goto Fail;
|
|
if (theTime != *tptr)
|
|
goto Fail;
|
|
|
|
|
|
/* Call ctime to get current date/time in the form: */
|
|
/* Day Mon 99 99:99:99 yyyy\n\0 where Day = day of week; Mon = month; */
|
|
/* 99 = day of month; 99:99:99 = current hour:min:sec; yyyy = current year */
|
|
|
|
timeString = ctime (tptr);
|
|
printf ("The current date/time is: %s\n", timeString);
|
|
|
|
|
|
/* Call localtime and gmtime and then echo the fields to the screen. */
|
|
|
|
TM = localtime (tptr);
|
|
if (TM == NULL)
|
|
goto Fail;
|
|
printf ("localtime is:\n");
|
|
printf ("sec = %d min = %d hour = %d day = %d month = %d year = %d\n",
|
|
TM->tm_sec, TM->tm_min, TM->tm_hour, TM->tm_mday, TM->tm_mon,
|
|
TM->tm_year);
|
|
printf ("day of week = %d day of year = %d not daylight savings = %d\n\n",
|
|
TM->tm_wday, TM->tm_yday, TM->tm_isdst);
|
|
|
|
TM = gmtime (tptr);
|
|
if (TM == NULL)
|
|
goto Fail;
|
|
printf ("gmtime is:\n");
|
|
printf ("sec = %d min = %d hour = %d day = %d month = %d year = %d\n",
|
|
TM->tm_sec, TM->tm_min, TM->tm_hour, TM->tm_mday, TM->tm_mon,
|
|
TM->tm_year);
|
|
printf ("day of week = %d day of year = %d not daylight savings = %d\n\n",
|
|
TM->tm_wday, TM->tm_yday, TM->tm_isdst);
|
|
|
|
|
|
/* Test mktime: should return original time as returned by time. */
|
|
|
|
secondTime = mktime (TM);
|
|
if (secondTime != theTime)
|
|
goto Fail;
|
|
|
|
|
|
/* Test asctime: should return same time as returned by ctime. */
|
|
|
|
timeString = asctime (TM);
|
|
printf ("The current date/time is: %s\n", timeString);
|
|
|
|
|
|
/* Test difftime. Value returned should be zero. */
|
|
|
|
d = difftime (theTime, secondTime);
|
|
if (d != 0.0)
|
|
goto Fail;
|
|
|
|
return 0;
|
|
|
|
Fail:
|
|
printf ("Call to a time function in spc20.2.0.1\n");
|
|
}
|