any_of.h 692 B

1234567891011121314151617181920212223242526272829
  1. //
  2. // any_of.h
  3. // stream
  4. //
  5. // Created by Sam Jaffe on 4/2/23.
  6. //
  7. #pragma once
  8. #include <stream/forward.h>
  9. #include <stream/detail/identity.h>
  10. #include <stream/detail/invoke.h>
  11. namespace stream::ranges {
  12. template <typename It, typename S, typename Pred,
  13. typename Proj = detail::identity>
  14. bool any_of(It it, S end, Pred pred, Proj proj = {}) {
  15. for (; it != end; ++it) {
  16. if (detail::invoke(pred, *it, proj)) { return true; }
  17. }
  18. return false;
  19. }
  20. template <typename Stream, typename Pred, typename Proj = detail::identity>
  21. bool any_of(Stream const & stream, Pred pred, Proj proj = {}) {
  22. return any_of(stream.begin(), stream.end(), std::ref(pred), std::ref(proj));
  23. }
  24. }