c++11timemillisecondsc++-chronosystem-clock

Getting time since epoch in milliseconds isn't outputting correctly

I've used the code from one of the answers on this forum but it's doesn't appear to be correct. I don't know if it's the code or the way I'm logging it.

unsigned long long int NQCTestInstance::getCurrentTimeInMs() {

    unsigned long milliseconds_since_epoch =
        std::chrono::duration_cast<std::chrono::milliseconds>
        (std::chrono::system_clock::now().time_since_epoch()).count();

    Log("Timestamp = %u\n\n", milliseconds_since_epoch);

    return milliseconds_since_epoch;

}

The Log output is 119682234, which is only nine characters when it should be ten. Is this as simple as the %u in the Log statement being incorrect?

Solution

  • @Igor Tandetnik and @John Zwinck were on the right tracks.

    I changed everything to unsigned long long and then used %llu (not %lu) for the logging.