/* Copyright 2003-2004 Joaqu韓 M L髉ez Mu駉z. * 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_TAG_HPP #define BOOST_MULTI_INDEX_TAG_HPP #include /* keep it first to prevent nasty warns in MSVC */ #include #include #include #include #include #include #include /* An alias to mpl::vector used to hide MPL from the user. * tag contains types used as tag names for indices in get() functions. */ /* This user_definable macro limits the number of elements of a tag; * 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_TAG_SIZE) #if defined(BOOST_MSVC)&&(BOOST_MSVC #define BOOST_MULTI_INDEX_LIMIT_TAG_SIZE 3 #else #define BOOST_MULTI_INDEX_LIMIT_TAG_SIZE BOOST_MPL_LIMIT_VECTOR_SIZE #endif #endif #if BOOST_MULTI_INDEX_LIMIT_TAG_SIZE #define BOOST_MULTI_INDEX_TAG_SIZE BOOST_MULTI_INDEX_LIMIT_TAG_SIZE #else #define BOOST_MULTI_INDEX_TAG_SIZE BOOST_MPL_LIMIT_VECTOR_SIZE #endif namespace boost{ namespace multi_index{ namespace detail{ struct tag_marker{}; template struct is_tag { BOOST_STATIC_CONSTANT(bool,value=(is_base_and_derived::value)); }; } /* namespace multi_index::detail */ template BOOST_PP_ENUM_BINARY_PARAMS( BOOST_MULTI_INDEX_TAG_SIZE, typename T, =mpl::na BOOST_PP_INTERCEPT) > struct tag:private detail::tag_marker { typedef mpl::vector type; BOOST_STATIC_ASSERT(detail::no_duplicate_tags::value); }; } /* namespace multi_index */ } /* namespace boost */ #undef BOOST_MULTI_INDEX_TAG_SIZE #endif
