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#include "../time.h"
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
static bool tm_equal(const struct tm *tma, const struct tm *tmb) {
if (tma->tm_year != tmb->tm_year) {
return false;
}
if (tma->tm_mon != tmb->tm_mon) {
return false;
}
if (tma->tm_mday != tmb->tm_mday) {
return false;
}
if (tma->tm_hour != tmb->tm_hour) {
return false;
}
if (tma->tm_min != tmb->tm_min) {
return false;
}
if (tma->tm_sec != tmb->tm_sec) {
return false;
}
if (tma->tm_wday != tmb->tm_wday) {
return false;
}
if (tma->tm_yday != tmb->tm_yday) {
return false;
}
if (tma->tm_isdst != tmb->tm_isdst) {
return false;
}
return true;
}
static void tm_print(FILE *file, const struct tm *tm) {
fprintf(file, "Y%d M%d D%d h%d m%d s%d wd%d yd%d%s\n",
tm->tm_year, tm->tm_mon, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec,
tm->tm_wday, tm->tm_yday,
tm->tm_isdst ? (tm->tm_isdst < 0 ? " (DST?)" : " (DST)") : "");
}
int main(void) {
if (setenv("TZ", "UTC0", true) != 0) {
perror("setenv()");
return EXIT_FAILURE;
}
struct tm tm = {
.tm_isdst = -1,
};
for (tm.tm_year = 10; tm.tm_year <= 200; tm.tm_year += 10)
for (tm.tm_mon = -3; tm.tm_mon <= 15; tm.tm_mon += 3)
for (tm.tm_mday = -31; tm.tm_mday <= 61; tm.tm_mday += 4)
for (tm.tm_hour = -1; tm.tm_hour <= 24; tm.tm_hour += 5)
for (tm.tm_min = -1; tm.tm_min <= 60; tm.tm_min += 31)
for (tm.tm_sec = -60; tm.tm_sec <= 120; tm.tm_sec += 5) {
struct tm tma = tm, tmb = tm;
time_t ta, tb;
ta = mktime(&tma);
if (xtimegm(&tmb, &tb) != 0) {
tb = -1;
}
bool fail = false;
if (ta != tb) {
printf("Mismatch: %jd != %jd\n", (intmax_t)ta, (intmax_t)tb);
fail = true;
}
if (ta != -1 && !tm_equal(&tma, &tmb)) {
printf("mktime(): ");
tm_print(stdout, &tma);
printf("xtimegm(): ");
tm_print(stdout, &tmb);
fail = true;
}
if (fail) {
printf("Input: ");
tm_print(stdout, &tm);
return EXIT_FAILURE;
}
}
return EXIT_SUCCESS;
}
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