none.hpp 972 B

1234567891011121314151617181920212223242526272829303132333435
  1. /*=============================================================================
  2. Copyright (c) 2001-2011 Joel de Guzman
  3. Copyright (c) 2007 Dan Marsden
  4. Distributed under the Boost Software License, Version 1.0. (See accompanying
  5. file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  6. ==============================================================================*/
  7. #if !defined(BOOST_FUSION_NONE_07062005_1128)
  8. #define BOOST_FUSION_NONE_07062005_1128
  9. #include <boost/fusion/support/config.hpp>
  10. #include <boost/fusion/algorithm/query/any.hpp>
  11. namespace boost { namespace fusion
  12. {
  13. namespace result_of
  14. {
  15. template <typename Sequence, typename F>
  16. struct none
  17. {
  18. typedef bool type;
  19. };
  20. }
  21. template <typename Sequence, typename F>
  22. BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
  23. inline bool
  24. none(Sequence const& seq, F f)
  25. {
  26. return !fusion::any(seq, f);
  27. }
  28. }}
  29. #endif