38 lines
803 B
C++
38 lines
803 B
C++
/*
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* Timer.hpp
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*
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* Created on: 12 окт. 2021 г.
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* Author: alexander
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*/
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#pragma once
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#include <iostream>
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#include <chrono>
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class Timer
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{
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private:
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using clock_t = std::chrono::high_resolution_clock;
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using second_t = std::chrono::duration<double, std::ratio<1> >;
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std::string m_name;
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std::chrono::time_point<clock_t> m_beg;
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double elapsed() const
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{
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return std::chrono::duration_cast<second_t>(clock_t::now() -m_beg).count();
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}
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public:
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Timer() : m_beg(clock_t::now()) { }
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Timer(std::string name) : m_name(name), m_beg(clock_t::now()) { }
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void start(std::string name) {
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m_name = name;
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m_beg = clock_t::now();
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}
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void print() const {
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std::cout << m_name << ":\t" << elapsed() * 1000 << " ms" << '\n';
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}
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};
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