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3rdparty/boost_1_81_0/boost/tuple/tuple.hpp 3.32 KB
dbf9e800   Hu Chunming   提交_GLIBCXX_USE_CX...
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  //  tuple.hpp - Boost Tuple Library --------------------------------------
  
  // Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi)
  //
  // Distributed under the Boost Software License, Version 1.0. (See
  // accompanying file LICENSE_1_0.txt or copy at
  // http://www.boost.org/LICENSE_1_0.txt)
  
  // For more information, see http://www.boost.org
  
  // -----------------------------------------------------------------
  
  #ifndef BOOST_TUPLE_HPP
  #define BOOST_TUPLE_HPP
  
  #if defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730
  // Work around a compiler bug.
  // boost::python::tuple has to be seen by the compiler before the
  // boost::tuple class template.
  namespace boost { namespace python { class tuple; }}
  #endif
  
  #include <boost/config.hpp>
  #include <boost/static_assert.hpp>
  
  // other compilers
  #include <boost/ref.hpp>
  #include <boost/tuple/detail/tuple_basic.hpp>
  
  
  namespace boost {
  
  using tuples::tuple;
  using tuples::make_tuple;
  using tuples::tie;
  #if !defined(BOOST_NO_USING_TEMPLATE)
  using tuples::get;
  #else
  //
  // The "using tuples::get" statement causes the
  // Borland compiler to ICE, use forwarding
  // functions instead:
  //
  template<int N, class HT, class TT>
  inline typename tuples::access_traits<
                    typename tuples::element<N, tuples::cons<HT, TT> >::type
                  >::non_const_type
  get(tuples::cons<HT, TT>& c) {
    return tuples::get<N,HT,TT>(c);
  }
  // get function for const cons-lists, returns a const reference to
  // the element. If the element is a reference, returns the reference
  // as such (that is, can return a non-const reference)
  template<int N, class HT, class TT>
  inline typename tuples::access_traits<
                    typename tuples::element<N, tuples::cons<HT, TT> >::type
                  >::const_type
  get(const tuples::cons<HT, TT>& c) {
    return tuples::get<N,HT,TT>(c);
  }
  
  #endif // BOOST_NO_USING_TEMPLATE
  
  } // end namespace boost
  
  #if !defined(BOOST_NO_CXX11_HDR_TUPLE)
  
  #include <tuple>
  #include <cstddef>
  
  namespace std
  {
  
  #if defined(BOOST_CLANG)
  # pragma clang diagnostic push
  # pragma clang diagnostic ignored "-Wmismatched-tags"
  #endif
  
  // std::tuple_size
  
  template<class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10>
      class tuple_size< boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >:
          public boost::tuples::length< boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >
  {
  };
  
  template<class H, class T> class tuple_size< boost::tuples::cons<H, T> >:
      public boost::tuples::length< boost::tuples::cons<H, T> >
  {
  };
  
  template<> class tuple_size< boost::tuples::null_type >:
      public boost::tuples::length< boost::tuples::null_type >
  {
  };
  
  // std::tuple_element
  
  template<std::size_t I, class T1, class T2, class T3, class T4, class T5, class T6, class T7, class T8, class T9, class T10>
      class tuple_element< I, boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >:
          public boost::tuples::element< I, boost::tuples::tuple<T1, T2, T3, T4, T5, T6, T7, T8, T9, T10> >
  {
  };
  
  template<std::size_t I, class H, class T> class tuple_element< I, boost::tuples::cons<H, T> >:
      public boost::tuples::element< I, boost::tuples::cons<H, T> >
  {
  };
  
  #if defined(BOOST_CLANG)
  # pragma clang diagnostic pop
  #endif
  
  } // namespace std
  
  #endif // !defined(BOOST_NO_CXX11_HDR_TUPLE)
  
  #endif // BOOST_TUPLE_HPP