/Src/Dependencies/Boost/boost/multi_index/detail/is_index_list.hpp

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  1. /* Copyright 2003-2008 Joaquin M Lopez Munoz.
    2. 

  2.  * Distributed under the Boost Software License, Version 1.0.
    3. 

  3.  * (See accompanying file LICENSE_1_0.txt or copy at
    4. 

  4.  * http://www.boost.org/LICENSE_1_0.txt)
    5. 

  5.  *
    6. 

  6.  * See http://www.boost.org/libs/multi_index for library home page.
    7. 

  7.  */
    8. 

  8. 

  9. #ifndef BOOST_MULTI_INDEX_DETAIL_IS_INDEX_LIST_HPP
    10. 

  10. #define BOOST_MULTI_INDEX_DETAIL_IS_INDEX_LIST_HPP
    11. 

  11. 

  12. #if defined(_MSC_VER)&&(_MSC_VER>=1200)
    13. 

  13. #pragma once
    14. 

  14. #endif
    15. 

  15. 

  16. #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
    17. 

  17. #include <boost/mpl/empty.hpp>
    18. 

  18. #include <boost/mpl/is_sequence.hpp>
    19. 

  19. 

  20. namespace boost{
    21. 

  21. 

  22. namespace multi_index{
    23. 

  23. 

  24. namespace detail{
    25. 

  25. 

  26. template<typename T>
    27. 

  27. struct is_index_list
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  28. {
    29. 

  29.   BOOST_STATIC_CONSTANT(bool,mpl_sequence=mpl::is_sequence<T>::value);
    30. 

  30.   BOOST_STATIC_CONSTANT(bool,non_empty=!mpl::empty<T>::value);
    31. 

  31.   BOOST_STATIC_CONSTANT(bool,value=mpl_sequence&&non_empty);
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  32. };
    33. 

  33. 

  34. } /* namespace multi_index::detail */
    35. 

  35. 

  36. } /* namespace multi_index */
    37. 

  37. 

  38. } /* namespace boost */
    39. 

  39. 

  40. #endif
    41.