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37 lines
2.5 KiB
C++
37 lines
2.5 KiB
C++
// Copyright (C) 2003 Davis E. King (davis@dlib.net)
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// License: Boost Software License See LICENSE.txt for the full license.
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#ifndef DLIB_TIME_THIs_
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#define DLIB_TIME_THIs_
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#include <chrono>
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// ----------------------------------------------------------------------------------------
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#define TIME_THIS_TO(_tt_op,_tt_out) \
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{ \
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auto _tt_start = std::chrono::high_resolution_clock::now(); \
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{_tt_op;} \
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auto _tt_stop = std::chrono::high_resolution_clock::now(); \
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auto _tt_thetime = _tt_stop-_tt_start; \
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using std::chrono::duration_cast; \
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using std::chrono::duration; \
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if (_tt_thetime >= std::chrono::minutes(1)) \
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_tt_out << "\ntime: " << duration_cast<duration<double,std::ratio<60>>>(_tt_thetime).count() << "min\n"; \
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else if (_tt_thetime >= std::chrono::seconds(1)) \
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_tt_out << "\ntime: " << duration_cast<duration<double>>(_tt_thetime).count() << "sec\n"; \
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else if (_tt_thetime >= std::chrono::milliseconds(1)) \
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_tt_out << "\ntime: " << duration_cast<duration<double,std::milli>>(_tt_thetime).count() << "ms\n"; \
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else if (_tt_thetime >= std::chrono::microseconds(1)) \
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_tt_out << "\ntime: " << duration_cast<duration<double,std::micro>>(_tt_thetime).count() << "us\n"; \
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else \
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_tt_out << "\ntime: " << duration_cast<duration<double,std::nano>>(_tt_thetime).count() << "ns\n"; \
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}
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#define TIME_THIS(_tt_op) TIME_THIS_TO(_tt_op,std::cout)
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// ----------------------------------------------------------------------------------------
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#endif // DLIB_TIME_THIs_
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