| |
| #ifndef BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED |
| #define BOOST_MPL_MULTISET_AUX_COUNT_IMPL_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: count_impl.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/count_fwd.hpp> |
| #include <boost/mpl/int.hpp> |
| #include <boost/mpl/aux_/type_wrapper.hpp> |
| #include <boost/mpl/aux_/static_cast.hpp> |
| #include <boost/mpl/aux_/config/static_constant.hpp> |
| #include <boost/mpl/aux_/config/workaround.hpp> |
| #include <boost/mpl/aux_/config/msvc.hpp> |
| |
| #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) |
| # include <boost/mpl/if.hpp> |
| # include <boost/type_traits/is_reference.hpp> |
| #endif |
| |
| namespace boost { namespace mpl { |
| |
| #if BOOST_WORKAROUND(BOOST_MSVC, <= 1300) |
| |
| namespace aux { |
| template< typename S, typename U > |
| struct multiset_count_impl |
| : int_< sizeof(S::key_count(BOOST_MPL_AUX_STATIC_CAST(U*,0))) - 1 > |
| { |
| }; |
| |
| template< typename S, typename U > |
| struct multiset_count_ref_impl |
| { |
| typedef U (* u_)(); |
| typedef int_< sizeof(S::ref_key_count(BOOST_MPL_AUX_STATIC_CAST(u_,0))) - 1 > type_; |
| BOOST_STATIC_CONSTANT(int, value = type_::value); |
| typedef type_ type; |
| }; |
| } |
| |
| template<> |
| struct count_impl< aux::multiset_tag > |
| { |
| template< typename Set, typename Key > struct apply |
| : if_< |
| is_reference<Key> |
| , aux::multiset_count_ref_impl<Set,Key> |
| , aux::multiset_count_impl<Set,Key> |
| >::type |
| { |
| }; |
| }; |
| |
| #else |
| |
| template<> |
| struct count_impl< aux::multiset_tag > |
| { |
| template< typename Set, typename Key > struct apply |
| { |
| enum { msvc71_wknd_ = sizeof(Set::key_count(BOOST_MPL_AUX_STATIC_CAST(aux::type_wrapper<Key>*,0))) - 1 }; |
| typedef int_< msvc71_wknd_ > type; |
| BOOST_STATIC_CONSTANT(int, value = msvc71_wknd_); |
| }; |
| }; |
| |
| #endif // BOOST_WORKAROUND(BOOST_MSVC, <= 1300) |
| |
| }} |
| |
| #endif // BOOST_MPL_MULTISET_AUX_COUNT_IMPL_HPP_INCLUDED |