stopwatch.hpp

struct StopWatch {
	std::string label;
	std::chrono::steady_clock::time_point start;
	std::chrono::steady_clock::time_point finish;
	StopWatch()
	{
		start = std::chrono::steady_clock::now();
	}
	StopWatch(const char *str)
	{
		label = str;
		start = std::chrono::steady_clock::now();
	}
	void Start()
	{
		start = std::chrono::steady_clock::now();
	};
	std::chrono::duration<double, std::milli> Stop()
	{
		finish = std::chrono::steady_clock::now();
		std::chrono::duration<double, std::milli> ms_double = finish - start;
		return ms_double;
	};
	void PrintEllapsed(const char *sublabel)
	{
		auto now = std::chrono::steady_clock::now();
		std::chrono::duration<double, std::milli> ms_double = now - start;
		std::cout << label << sublabel << ms_double.count() << '\n';
	}
};