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std::chrono::high_resolution_clock::time_point beg, end; std::chrono::duration<double> time_span; beg = std::chrono::high_resolution_clock::now(); // do something end = std::chrono::high_resolution_clock::now(); time_span = std::chrono::duration_cast<std::chrono::duration<double>>(end - beg); std::cout << "time: " << time_span.count() * 1000 << "msn";
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