// 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" #if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) // The MSVC version #include "boost/tuple/detail/tuple_basic_no_partial_spec.hpp" #else // other compilers #include "boost/ref.hpp" #include "boost/tuple/detail/tuple_basic.hpp" #endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION namespace boost { using tuples::tuple; using tuples::make_tuple; using tuples::tie; #if !defined(BOOST_NO_USING_TEMPLATE) using tuples::get; #elif !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) // // 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); } #else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION // // MSVC, using declarations don't mix with templates well, // so use forwarding functions instead: // template<int N, typename Head, typename Tail> typename tuples::detail::element_ref<N, tuples::cons<Head, Tail> >::RET get(tuples::cons<Head, Tail>& t, tuples::detail::workaround_holder<N>* = 0) { return tuples::detail::get_class<N>::get(t); } template<int N, typename Head, typename Tail> typename tuples::detail::element_const_ref<N, tuples::cons<Head, Tail> >::RET get(const tuples::cons<Head, Tail>& t, tuples::detail::workaround_holder<N>* = 0) { return tuples::detail::get_class<N>::get(t); } #endif // BOOST_NO_USING_TEMPLATE } // end namespace boost #endif // BOOST_TUPLE_HPP