contrib/mandoc/test-strptime.c

#include <time.h>

int
main(void)
{
	struct tm tm;
	const char input[] = "2014-01-04";
	return ! (strptime(input, "%Y-%m-%d", &tm) == input + 10 &&
	    tm.tm_year == 114 && tm.tm_mon == 0 && tm.tm_mday == 4);
}