boost/mpl/begin_end.hpp

   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: 2008-10-10 23:19:02 -0700 (Fri, 10 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