Function localtime_r

util/datetime/systime.cpp:50–58

}

tm* localtime_r(const time_t* clock, tm* result) {
    tzset();
    tm* res = localtime(clock);
    if (res) {
        memcpy(result, res, sizeof(tm));
        return result;
    }
    return 0;
}

tm* gmtime_r(const time_t* clock, tm* result) {
    return gmtime_s(result, clock) == 0 ? result : 0;