#ifndef BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED #define BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED // Copyright Aleksey Gurtovoy 2003-2004 // // 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/mpl for documentation. // $Id: item.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ // $Revision: 49267 $ #include <boost/mpl/multiset/aux_/tag.hpp> #include <boost/mpl/int.hpp> #include <boost/mpl/aux_/type_wrapper.hpp> #include <boost/mpl/aux_/yes_no.hpp> #include <boost/mpl/aux_/value_wknd.hpp> #include <boost/mpl/aux_/static_cast.hpp> #include <boost/mpl/aux_/config/arrays.hpp> #include <boost/mpl/aux_/config/msvc.hpp> #include <boost/mpl/aux_/config/workaround.hpp> #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) # include <boost/mpl/eval_if.hpp> # include <boost/mpl/next.hpp> # include <boost/type_traits/is_same.hpp> #endif namespace boost { namespace mpl { #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) template< typename T, typename Base > struct ms_item { typedef aux::multiset_tag tag; template< typename U > struct prior_count { enum { msvc70_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(U*,0))) }; typedef int_< msvc70_wknd_ > count_; typedef typename eval_if< is_same<T,U>, next<count_>, count_ >::type c_; #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES) typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value>::type type; #else typedef char (&type)[BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value]; #endif }; template< typename U > struct prior_ref_count { typedef U (* u_)(); enum { msvc70_wknd_ = sizeof(Base::ref_key_count(BOOST_MPL_AUX_STATIC_CAST(u_,0))) }; typedef int_< msvc70_wknd_ > count_; typedef typename eval_if< is_same<T,U>, next<count_>, count_ >::type c_; #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES) typedef typename aux::weighted_tag<BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value>::type type; #else typedef char (&type)[BOOST_MPL_AUX_MSVC_VALUE_WKND(c_)::value]; #endif }; template< typename U > static typename prior_count<U>::type key_count(U*); template< typename U > static typename prior_ref_count<U>::type ref_key_count(U (*)()); }; #else // BOOST_WORKAROUND(BOOST_MSVC, <= 1300) namespace aux { template< typename U, typename Base > struct prior_key_count { enum { msvc71_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<U>*,0))) }; typedef int_< msvc71_wknd_ > count_; #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES) typedef typename aux::weighted_tag< BOOST_MPL_AUX_VALUE_WKND(count_)::value >::type type; #else typedef char (&type)[count_::value]; #endif }; } template< typename T, typename Base > struct ms_item { typedef aux::multiset_tag tag; enum { msvc71_wknd_ = sizeof(Base::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<T>*,0))) + 1 }; typedef int_< msvc71_wknd_ > count_; #if defined(BOOST_MPL_CFG_NO_DEPENDENT_ARRAY_TYPES) static typename aux::weighted_tag< BOOST_MPL_AUX_VALUE_WKND(count_)::value >::type key_count(aux::type_wrapper<T>*); #else static char (& key_count(aux::type_wrapper<T>*) )[count_::value]; #endif template< typename U > static typename aux::prior_key_count<U,Base>::type key_count(aux::type_wrapper<U>*); }; #endif // BOOST_WORKAROUND(BOOST_MSVC, <= 1300) }} #endif // BOOST_MPL_MULTISET_AUX_ITEM_HPP_INCLUDED