In Java, we can use System.currentTimeMillis()
to get the current timestamp in Milliseconds since epoch time which is -
the difference, measured in milliseconds, between the current time and midnight, January 1, 1970 UTC.
In C++ how to get the same thing?
Currently I am using this to get the current timestamp -
struct timeval tp;
gettimeofday(&tp, NULL);
long int ms = tp.tv_sec * 1000 + tp.tv_usec / 1000; //get current timestamp in milliseconds
cout << ms << endl;
This looks right or not?
If you have access to the C++ 11 libraries, check out the std::chrono
library. You can use it to get the milliseconds since the Unix Epoch like this:
#include <chrono>
// ...
using namespace std::chrono;
milliseconds ms = duration_cast< milliseconds >(
system_clock::now().time_since_epoch()
);