1 2 #ifndef BOOST_MPL_BEGIN_END_HPP_INCLUDED 3 #define BOOST_MPL_BEGIN_END_HPP_INCLUDED 4 5 // Copyright Aleksey Gurtovoy 2000-2004 6 // 7 // Distributed under the Boost Software License, Version 1.0. 8 // (See accompanying file LICENSE_1_0.txt or copy at 9 // http://www.boost.org/LICENSE_1_0.txt) 10 // 11 // See http://www.boost.org/libs/mpl for documentation. 12 13 // $Id: begin_end.hpp 49267 2008-10-11 06:19:02Z agurtovoy $ 14 // $Date: 2008-10-11 02:19:02 -0400 (Sat, 11 Oct 2008) $ 15 // $Revision: 49267 $ 16 17 #include <boost/mpl/begin_end_fwd.hpp> 18 #include <boost/mpl/aux_/begin_end_impl.hpp> 19 #include <boost/mpl/sequence_tag.hpp> 20 #include <boost/mpl/aux_/na_spec.hpp> 21 #include <boost/mpl/aux_/lambda_support.hpp> 22 23 namespace boost { namespace mpl { 24 25 // agurt, 13/sep/02: switched from inheritance to typedef; MSVC is more 26 // happy this way (less ETI-related errors), and it doesn't affect 27 // anything else 28 template< 29 typename BOOST_MPL_AUX_NA_PARAM(Sequence) 30 > 31 struct begin 32 { 33 typedef typename sequence_tag<Sequence>::type tag_; 34 typedef typename begin_impl< tag_ > 35 ::template apply< Sequence >::type type; 36 37 BOOST_MPL_AUX_LAMBDA_SUPPORT(1,begin,(Sequence)) 38 }; 39 40 template< 41 typename BOOST_MPL_AUX_NA_PARAM(Sequence) 42 > 43 struct end 44 { 45 typedef typename sequence_tag<Sequence>::type tag_; 46 typedef typename end_impl< tag_ > 47 ::template apply< Sequence >::type type; 48 49 BOOST_MPL_AUX_LAMBDA_SUPPORT(1,end,(Sequence)) 50 }; 51 52 BOOST_MPL_AUX_NA_SPEC(1, begin) 53 BOOST_MPL_AUX_NA_SPEC(1, end) 54 55 }} 56 57 #endif // BOOST_MPL_BEGIN_END_HPP_INCLUDED 58