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72 lines
2.1 KiB
72 lines
2.1 KiB
/* 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_INDEXED_BY_HPP |
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#define BOOST_MULTI_INDEX_INDEXED_BY_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/mpl/vector.hpp> |
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#include <boost/preprocessor/cat.hpp> |
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#include <boost/preprocessor/control/expr_if.hpp> |
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#include <boost/preprocessor/repetition/enum.hpp> |
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#include <boost/preprocessor/repetition/enum_params.hpp> |
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/* An alias to mpl::vector used to hide MPL from the user. |
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* indexed_by contains the index specifiers for instantiation |
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* of a multi_index_container. |
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*/ |
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/* This user_definable macro limits the number of elements of an index list; |
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* useful for shortening resulting symbol names (MSVC++ 6.0, for instance, |
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* has problems coping with very long symbol names.) |
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*/ |
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#if !defined(BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE) |
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#if defined(BOOST_MSVC)&&(BOOST_MSVC<1300) |
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#define BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE 5 |
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#else |
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#define BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE BOOST_MPL_LIMIT_VECTOR_SIZE |
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#endif |
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#endif |
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#if BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE<BOOST_MPL_LIMIT_VECTOR_SIZE |
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#define BOOST_MULTI_INDEX_INDEXED_BY_SIZE \ |
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BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE |
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#else |
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#define BOOST_MULTI_INDEX_INDEXED_BY_SIZE BOOST_MPL_LIMIT_VECTOR_SIZE |
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#endif |
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#define BOOST_MULTI_INDEX_INDEXED_BY_TEMPLATE_PARM(z,n,var) \ |
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typename BOOST_PP_CAT(var,n) BOOST_PP_EXPR_IF(n,=mpl::na) |
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namespace boost{ |
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namespace multi_index{ |
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template< |
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BOOST_PP_ENUM( |
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BOOST_MULTI_INDEX_INDEXED_BY_SIZE, |
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BOOST_MULTI_INDEX_INDEXED_BY_TEMPLATE_PARM,T) |
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> |
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struct indexed_by: |
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mpl::vector<BOOST_PP_ENUM_PARAMS(BOOST_MULTI_INDEX_INDEXED_BY_SIZE,T)> |
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{ |
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}; |
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} /* namespace multi_index */ |
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} /* namespace boost */ |
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#undef BOOST_MULTI_INDEX_INDEXED_BY_TEMPLATE_PARM |
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#undef BOOST_MULTI_INDEX_INDEXED_BY_SIZE |
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#endif
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