31 lines
805 B
C++
31 lines
805 B
C++
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// Copyright 2015, Tobias Hermann and the FunctionalPlus contributors.
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// https://github.com/Dobiasd/FunctionalPlus
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// Distributed under the Boost Software License, Version 1.0.
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// (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#pragma once
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#include <chrono>
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namespace fplus
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{
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class stopwatch
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{
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public:
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stopwatch() : beg_(clock::now()) {}
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void reset() { beg_ = clock::now(); }
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// time since creation or last reset in seconds
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double elapsed() const {
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return std::chrono::duration_cast<second>
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(clock::now() - beg_).count(); }
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private:
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typedef std::chrono::high_resolution_clock clock;
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typedef std::chrono::duration<double, std::ratio<1>> second;
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std::chrono::time_point<clock> beg_;
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};
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} // namespace fplus
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