jD91mZM2
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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int check(time_t input) {
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struct tm* t = localtime(&input);
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printf("%ld = %ld\n", input, mktime(t));
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if (input != mktime(t)) {
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printf(
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"Year %d, Day of year: %d, Month %d, Day of month: %d, Day of week: %d, %d:%d:%d\n",
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t->tm_year, t->tm_yday, t->tm_mon, t->tm_mday, t->tm_wday, t->tm_hour, t->tm_min, t->tm_sec
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);
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puts("Failed!");
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return -1;
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}
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return 0;
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}
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int main() {
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struct tm t = {};
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t.tm_year = 71;
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t.tm_mday = 1;
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printf("%ld\n", mktime(&t));
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int day = 60 * 60 * 24;
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time_t inputs[] = { -(day * 33), -day, -500, 0, 1531454950 };
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for (int i = 0; i < 5; i += 1) {
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if (check(inputs[i])) {
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return -1;
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}
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}
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srand(time(NULL));
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for (int i = 0; i < 10; i += 1) {
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time_t input = (time_t) rand();
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struct tm* time = localtime(&input);
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time_t output = mktime(time);
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if (input != output) {
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// asctime has newline
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printf("Comparison %ld == %ld failed. Time: %s", input, output, asctime(time));
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}
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}
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}
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