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Diffstat (limited to 'ml/dlib/dlib/time_this.h')
| -rw-r--r-- | ml/dlib/dlib/time_this.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/ml/dlib/dlib/time_this.h b/ml/dlib/dlib/time_this.h new file mode 100644 index 000000000..aec0d2de8 --- /dev/null +++ b/ml/dlib/dlib/time_this.h @@ -0,0 +1,36 @@ +// Copyright (C) 2003 Davis E. King (davis@dlib.net) +// License: Boost Software License See LICENSE.txt for the full license. +#ifndef DLIB_TIME_THIs_ +#define DLIB_TIME_THIs_ + + +#include <chrono> + +// ---------------------------------------------------------------------------------------- + +#define TIME_THIS_TO(_tt_op,_tt_out) \ + { \ + auto _tt_start = std::chrono::high_resolution_clock::now(); \ + {_tt_op;} \ + auto _tt_stop = std::chrono::high_resolution_clock::now(); \ + auto _tt_thetime = _tt_stop-_tt_start; \ + using std::chrono::duration_cast; \ + using std::chrono::duration; \ + if (_tt_thetime >= std::chrono::minutes(1)) \ + _tt_out << "\ntime: " << duration_cast<duration<double,std::ratio<60>>>(_tt_thetime).count() << "min\n"; \ + else if (_tt_thetime >= std::chrono::seconds(1)) \ + _tt_out << "\ntime: " << duration_cast<duration<double>>(_tt_thetime).count() << "sec\n"; \ + else if (_tt_thetime >= std::chrono::milliseconds(1)) \ + _tt_out << "\ntime: " << duration_cast<duration<double,std::milli>>(_tt_thetime).count() << "ms\n"; \ + else if (_tt_thetime >= std::chrono::microseconds(1)) \ + _tt_out << "\ntime: " << duration_cast<duration<double,std::micro>>(_tt_thetime).count() << "us\n"; \ + else \ + _tt_out << "\ntime: " << duration_cast<duration<double,std::nano>>(_tt_thetime).count() << "ns\n"; \ + } + +#define TIME_THIS(_tt_op) TIME_THIS_TO(_tt_op,std::cout) + +// ---------------------------------------------------------------------------------------- + +#endif // DLIB_TIME_THIs_ + |