is_same_size.hpp 1.1 KB

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  1. /*=============================================================================
  2. Copyright (c) 2014-2015 Kohei Takahashi
  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. #ifndef FUSION_IS_SAME_SIZE_10082015_1156
  7. #define FUSION_IS_SAME_SIZE_10082015_1156
  8. #include <boost/fusion/support/is_sequence.hpp>
  9. #include <boost/fusion/sequence/intrinsic/size.hpp>
  10. #include <boost/mpl/bool.hpp>
  11. namespace boost { namespace fusion { namespace detail
  12. {
  13. template <typename Sequence1, typename Sequence2, bool
  14. = traits::is_sequence<Sequence1>::value &&
  15. traits::is_sequence<Sequence2>::value>
  16. struct is_same_size : mpl::false_ {};
  17. template <typename Sequence1, typename Sequence2>
  18. struct is_same_size<Sequence1, Sequence2, true>
  19. : mpl::bool_<result_of::size<Sequence1>::value ==
  20. result_of::size<Sequence2>::value>
  21. {};
  22. }}}
  23. #endif