timing.hpp 1.6 KB

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  1. // Copyright (c) 2017-2021 Thomas Fussell
  2. //
  3. // Permission is hereby granted, free of charge, to any person obtaining a copy
  4. // of this software and associated documentation files (the "Software"), to deal
  5. // in the Software without restriction, including without limitation the rights
  6. // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  7. // copies of the Software, and to permit persons to whom the Software is
  8. // furnished to do so, subject to the following conditions:
  9. //
  10. // The above copyright notice and this permission notice shall be included in
  11. // all copies or substantial portions of the Software.
  12. //
  13. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16. // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17. // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18. // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19. // THE SOFTWARE
  20. //
  21. // @license: http://www.opensource.org/licenses/mit-license.php
  22. // @author: see AUTHORS file
  23. #include <chrono>
  24. namespace xlnt {
  25. namespace benchmarks {
  26. inline std::size_t current_time()
  27. {
  28. auto now = std::chrono::system_clock::now();
  29. auto time_since_epoch = now.time_since_epoch();
  30. auto duration = std::chrono::duration<double, std::milli>(time_since_epoch);
  31. return static_cast<std::size_t>(duration.count());
  32. }
  33. } // namespace benchmarks
  34. } // namespace xlnt