70 lines
1.6 KiB
C++
70 lines
1.6 KiB
C++
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/* Copyright 2003-2008 Joaquin M Lopez Munoz.
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* Distributed under the Boost Software License, Version 1.0.
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* (See 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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*
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* See http://www.boost.org/libs/multi_index for library home page.
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*/
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#ifndef BOOST_MULTI_INDEX_DETAIL_MSVC_INDEX_SPECIFIER_HPP
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#define BOOST_MULTI_INDEX_DETAIL_MSVC_INDEX_SPECIFIER_HPP
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#if defined(_MSC_VER)&&(_MSC_VER>=1200)
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#pragma once
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#endif
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#include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */
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#include <boost/detail/workaround.hpp>
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#if BOOST_WORKAROUND(BOOST_MSVC,<1310)
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/* Workaround for a problem in MSVC with dependent template typedefs
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* when accesing index specifiers.
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* Modeled after <boost/mpl/aux_/msvc_dtw.hpp> (thanks, Aleksey!)
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*/
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#include <boost/mpl/aux_/msvc_never_true.hpp>
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namespace boost{
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namespace multi_index{
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namespace detail{
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template<typename IndexSpecifier>
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struct msvc_index_specifier
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{
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template<bool> struct fake_index_type:IndexSpecifier{};
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template<> struct fake_index_type<true>
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{
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template<typename Super>
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struct node_class{};
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template<typename Super>
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struct index_class{};
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};
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template<typename Super>
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struct result_node_class:
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fake_index_type<mpl::aux::msvc_never_true<IndexSpecifier>::value>::
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template node_class<Super>
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{
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};
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template<typename Super>
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struct result_index_class:
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fake_index_type<mpl::aux::msvc_never_true<IndexSpecifier>::value>::
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template index_class<Super>
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{
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};
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};
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} /* namespace multi_index::detail */
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} /* namespace multi_index */
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} /* namespace boost */
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#endif /* workaround */
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#endif
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