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90 lines
2.8 KiB
90 lines
2.8 KiB
// tuple.hpp - Boost Tuple Library -------------------------------------- |
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// Copyright (C) 1999, 2000 Jaakko Jarvi (jaakko.jarvi@cs.utu.fi) |
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// |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// For more information, see http://www.boost.org |
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// ----------------------------------------------------------------- |
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#ifndef BOOST_TUPLE_HPP |
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#define BOOST_TUPLE_HPP |
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#if defined(__sgi) && defined(_COMPILER_VERSION) && _COMPILER_VERSION <= 730 |
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// Work around a compiler bug. |
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// boost::python::tuple has to be seen by the compiler before the |
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// boost::tuple class template. |
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namespace boost { namespace python { class tuple; }} |
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#endif |
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#include "boost/config.hpp" |
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#include "boost/static_assert.hpp" |
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#if defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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// The MSVC version |
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#include "boost/tuple/detail/tuple_basic_no_partial_spec.hpp" |
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#else |
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// other compilers |
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#include "boost/ref.hpp" |
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#include "boost/tuple/detail/tuple_basic.hpp" |
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#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
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namespace boost { |
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using tuples::tuple; |
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using tuples::make_tuple; |
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using tuples::tie; |
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#if !defined(BOOST_NO_USING_TEMPLATE) |
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using tuples::get; |
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#elif !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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// |
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// The "using tuples::get" statement causes the |
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// Borland compiler to ICE, use forwarding |
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// functions instead: |
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// |
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template<int N, class HT, class TT> |
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inline typename tuples::access_traits< |
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typename tuples::element<N, tuples::cons<HT, TT> >::type |
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>::non_const_type |
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get(tuples::cons<HT, TT>& c) { |
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return tuples::get<N,HT,TT>(c); |
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} |
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// get function for const cons-lists, returns a const reference to |
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// the element. If the element is a reference, returns the reference |
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// as such (that is, can return a non-const reference) |
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template<int N, class HT, class TT> |
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inline typename tuples::access_traits< |
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typename tuples::element<N, tuples::cons<HT, TT> >::type |
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>::const_type |
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get(const tuples::cons<HT, TT>& c) { |
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return tuples::get<N,HT,TT>(c); |
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} |
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#else // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION |
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// |
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// MSVC, using declarations don't mix with templates well, |
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// so use forwarding functions instead: |
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// |
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template<int N, typename Head, typename Tail> |
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typename tuples::detail::element_ref<N, tuples::cons<Head, Tail> >::RET |
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get(tuples::cons<Head, Tail>& t, tuples::detail::workaround_holder<N>* = 0) |
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{ |
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return tuples::detail::get_class<N>::get(t); |
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} |
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template<int N, typename Head, typename Tail> |
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typename tuples::detail::element_const_ref<N, tuples::cons<Head, Tail> >::RET |
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get(const tuples::cons<Head, Tail>& t, tuples::detail::workaround_holder<N>* = 0) |
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{ |
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return tuples::detail::get_class<N>::get(t); |
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} |
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#endif // BOOST_NO_USING_TEMPLATE |
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} // end namespace boost |
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#endif // BOOST_TUPLE_HPP
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