57b08b0944
to reflect the new license. These used slightly different spellings that defeated my regular expressions. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351648
55 lines
1.3 KiB
C++
55 lines
1.3 KiB
C++
//===----------------------------------------------------------------------===////
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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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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