src/third_party/musl/src/time/__tm_to_secs.c

#include "time_impl.h"

long long __tm_to_secs(const struct tm *tm)
{
	int is_leap;
	long long year = tm->tm_year;
	int month = tm->tm_mon;
	if (month >= 12 || month < 0) {
		int adj = month / 12;
		month %= 12;
		if (month < 0) {
			adj--;
			month += 12;
		}
		year += adj;
	}
	long long t = __year_to_secs(year, &is_leap);
	t += __month_to_secs(month, is_leap);
	t += 86400LL * (tm->tm_mday-1);
	t += 3600LL * tm->tm_hour;
	t += 60LL * tm->tm_min;
	t += tm->tm_sec;
	return t;
}