Chris@16: 
Chris@16: #ifndef BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED
Chris@16: #define BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED
Chris@16: 
Chris@16: // Copyright Aleksey Gurtovoy 2003-2004
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0. 
Chris@16: // (See accompanying file LICENSE_1_0.txt or copy at 
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/mpl for documentation.
Chris@16: 
Chris@101: // $Id$
Chris@101: // $Date$
Chris@101: // $Revision$
Chris@16: 
Chris@16: #include <boost/mpl/multiset/aux_/tag.hpp>
Chris@16: #include <boost/mpl/count_fwd.hpp>
Chris@16: #include <boost/mpl/int.hpp>
Chris@16: #include <boost/mpl/aux_/type_wrapper.hpp>
Chris@16: #include <boost/mpl/aux_/static_cast.hpp>
Chris@16: #include <boost/mpl/aux_/config/static_constant.hpp>
Chris@16: #include <boost/mpl/aux_/config/workaround.hpp>
Chris@16: #include <boost/mpl/aux_/config/msvc.hpp>
Chris@16: 
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
Chris@16: #   include <boost/mpl/if.hpp>
Chris@16: #   include <boost/type_traits/is_reference.hpp>
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost { namespace mpl {
Chris@16: 
Chris@16: #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
Chris@16: 
Chris@16: namespace aux {
Chris@16: template< typename S, typename U >
Chris@16: struct multiset_count_impl
Chris@16:     : int_< sizeof(S::key_count(BOOST_MPL_AUX_STATIC_CAST(U*,0))) - 1 >
Chris@16: {
Chris@16: };
Chris@16: 
Chris@16: template< typename S, typename U >
Chris@16: struct multiset_count_ref_impl
Chris@16: {
Chris@16:     typedef U (* u_)();
Chris@16:     typedef int_< sizeof(S::ref_key_count(BOOST_MPL_AUX_STATIC_CAST(u_,0))) - 1 > type_;
Chris@16:     BOOST_STATIC_CONSTANT(int, value = type_::value);
Chris@16:     typedef type_ type;
Chris@16: };
Chris@16: }
Chris@16: 
Chris@16: template<>
Chris@16: struct count_impl< aux::multiset_tag >
Chris@16: {
Chris@16:     template< typename Set, typename Key > struct apply
Chris@16:         : if_< 
Chris@16:               is_reference<Key>
Chris@16:             , aux::multiset_count_ref_impl<Set,Key>
Chris@16:             , aux::multiset_count_impl<Set,Key>
Chris@16:             >::type
Chris@16:     {
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: #else
Chris@16: 
Chris@16: template<>
Chris@16: struct count_impl< aux::multiset_tag >
Chris@16: {
Chris@16:     template< typename Set, typename Key > struct apply
Chris@16:     {
Chris@16:         enum { msvc71_wknd_ = sizeof(Set::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<Key>*,0))) - 1 };
Chris@16:         typedef int_< msvc71_wknd_ > type;
Chris@16:         BOOST_STATIC_CONSTANT(int, value = msvc71_wknd_);
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: #endif // BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #endif // BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED