transform.hpp 1.7 KB

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  1. /*=============================================================================
  2. Copyright (c) 2001-2011 Joel de Guzman
  3. Distributed under the Boost Software License, Version 1.0. (See accompanying
  4. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  5. ==============================================================================*/
  6. #if !defined(FUSION_TRANSFORM_07052005_1057)
  7. #define FUSION_TRANSFORM_07052005_1057
  8. #include <boost/fusion/support/config.hpp>
  9. #include <boost/fusion/view/transform_view/transform_view.hpp>
  10. namespace boost { namespace fusion
  11. {
  12. struct void_;
  13. namespace result_of
  14. {
  15. template <typename Sequence1, typename Sequence2, typename F = void_>
  16. struct transform
  17. {
  18. typedef transform_view<Sequence1, Sequence2, F> type;
  19. };
  20. template <typename Sequence, typename F>
  21. #if defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS)
  22. struct transform<Sequence, F, void_>
  23. #else
  24. struct transform<Sequence, F>
  25. #endif
  26. {
  27. typedef transform_view<Sequence, F> type;
  28. };
  29. }
  30. template <typename Sequence, typename F>
  31. BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  32. inline typename result_of::transform<Sequence const, F>::type
  33. transform(Sequence const& seq, F f)
  34. {
  35. return transform_view<Sequence const, F>(seq, f);
  36. }
  37. template <typename Sequence1, typename Sequence2, typename F>
  38. BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  39. inline typename result_of::transform<Sequence1 const, Sequence2 const, F>::type
  40. transform(Sequence1 const& seq1, Sequence2 const& seq2, F f)
  41. {
  42. return transform_view<Sequence1 const, Sequence2 const, F>(seq1, seq2, f);
  43. }
  44. }}
  45. #endif