| /* Copyright 2003-2008 Joaquin M Lopez Munoz. |
| * 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) |
| * |
| * See http://www.boost.org/libs/multi_index for library home page. |
| */ |
| |
| #ifndef BOOST_MULTI_INDEX_INDEXED_BY_HPP |
| #define BOOST_MULTI_INDEX_INDEXED_BY_HPP |
| |
| #if defined(_MSC_VER)&&(_MSC_VER>=1200) |
| #pragma once |
| #endif |
| |
| #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ |
| #include <boost/mpl/vector.hpp> |
| #include <boost/preprocessor/cat.hpp> |
| #include <boost/preprocessor/control/expr_if.hpp> |
| #include <boost/preprocessor/repetition/enum.hpp> |
| #include <boost/preprocessor/repetition/enum_params.hpp> |
| |
| /* An alias to mpl::vector used to hide MPL from the user. |
| * indexed_by contains the index specifiers for instantiation |
| * of a multi_index_container. |
| */ |
| |
| /* This user_definable macro limits the number of elements of an index list; |
| * useful for shortening resulting symbol names (MSVC++ 6.0, for instance, |
| * has problems coping with very long symbol names.) |
| */ |
| |
| #if !defined(BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE) |
| #if defined(BOOST_MSVC)&&(BOOST_MSVC<1300) |
| #define BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE 5 |
| #else |
| #define BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE BOOST_MPL_LIMIT_VECTOR_SIZE |
| #endif |
| #endif |
| |
| #if BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE<BOOST_MPL_LIMIT_VECTOR_SIZE |
| #define BOOST_MULTI_INDEX_INDEXED_BY_SIZE \ |
| BOOST_MULTI_INDEX_LIMIT_INDEXED_BY_SIZE |
| #else |
| #define BOOST_MULTI_INDEX_INDEXED_BY_SIZE BOOST_MPL_LIMIT_VECTOR_SIZE |
| #endif |
| |
| #define BOOST_MULTI_INDEX_INDEXED_BY_TEMPLATE_PARM(z,n,var) \ |
| typename BOOST_PP_CAT(var,n) BOOST_PP_EXPR_IF(n,=mpl::na) |
| |
| namespace boost{ |
| |
| namespace multi_index{ |
| |
| template< |
| BOOST_PP_ENUM( |
| BOOST_MULTI_INDEX_INDEXED_BY_SIZE, |
| BOOST_MULTI_INDEX_INDEXED_BY_TEMPLATE_PARM,T) |
| > |
| struct indexed_by: |
| mpl::vector<BOOST_PP_ENUM_PARAMS(BOOST_MULTI_INDEX_INDEXED_BY_SIZE,T)> |
| { |
| }; |
| |
| } /* namespace multi_index */ |
| |
| } /* namespace boost */ |
| |
| #undef BOOST_MULTI_INDEX_INDEXED_BY_TEMPLATE_PARM |
| #undef BOOST_MULTI_INDEX_INDEXED_BY_SIZE |
| |
| #endif |