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Question

I\'m looking for a C++11 version of the library. Were any like this included with C++11?

EDIT: Anything with more functionality would be perfe

Answer 1

C++11 includes the header, which provides different types of clocks (I'll use the high resolution one), that have a now function. You can subtract two of these times received from now() to get the total number of s (I'll use seconds) between them:

using clock = std::chrono::high_resolution_clock;
using unit = std::chrono::seconds;
std::chrono::time_point startTime = clock::now(); //get starting time

... //do whatever stuff you have to do

std::chrono::time_point thisTime = clock::now();
long long secondsElapsed = std::chrono::duration_cast(thisTime - startTime).count();

//now use secondsElapsed however you wish
//you can also use other units, such as milliseconds or nanoseconds

Do note, however, that secondsElapsed is not guaranteed to be positive unless the is_steady member of the clock is true because that member being true means that a subsequent call to now() will give a larger number than a former call to now().