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