56 lines
1.3 KiB
C++
56 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===////
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===////
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#ifndef TIMER_HPP
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#define TIMER_HPP
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// Define LIBCXXABI_NO_TIMER to disable testing with a timer.
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#ifndef LIBCXXABI_NO_TIMER
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#include <chrono>
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#include <iostream>
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class timer
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{
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typedef std::chrono::high_resolution_clock Clock;
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typedef Clock::time_point TimePoint;
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typedef std::chrono::microseconds MicroSeconds;
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public:
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timer() : m_start(Clock::now()) {}
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timer(timer const &) = delete;
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timer & operator=(timer const &) = delete;
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~timer()
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{
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using std::chrono::duration_cast;
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TimePoint end = Clock::now();
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MicroSeconds us = duration_cast<MicroSeconds>(end - m_start);
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std::cout << us.count() << " microseconds\n";
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}
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private:
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TimePoint m_start;
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};
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#else /* LIBCXXABI_NO_TIMER */
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class timer
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{
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public:
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timer() {}
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timer(timer const &) = delete;
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timer & operator=(timer const &) = delete;
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~timer() {}
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};
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#endif /* LIBCXXABI_NO_TIMER */
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#endif /* TIMER_HPP */
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