boost/mpl/aux_/lambda_spec.hpp

   1
   2 #ifndef BOOST_MPL_AUX_LAMBDA_SPEC_HPP_INCLUDED
   3 #define BOOST_MPL_AUX_LAMBDA_SPEC_HPP_INCLUDED
   4
   5 // Copyright Aleksey Gurtovoy 2001-2007
   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: lambda_spec.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/void.hpp>
  18 #include <boost/mpl/lambda_fwd.hpp>
  19 #include <boost/mpl/int_fwd.hpp>
  20 #include <boost/mpl/aux_/preprocessor/params.hpp>
  21 #include <boost/mpl/aux_/lambda_arity_param.hpp>
  22 #include <boost/mpl/aux_/config/lambda.hpp>
  23
  24 #if !defined(BOOST_MPL_CFG_NO_FULL_LAMBDA_SUPPORT)
  25
  26 #   define BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(i, name) \
  27 template< \
  28       BOOST_MPL_PP_PARAMS(i, typename T) \
  29     , typename Tag \
  30     > \
  31 struct lambda< \
  32       name< BOOST_MPL_PP_PARAMS(i, T) > \
  33     , Tag \
  34     BOOST_MPL_AUX_LAMBDA_ARITY_PARAM(int_<i>) \
  35     > \
  36 { \
  37     typedef false_ is_le; \
  38     typedef name< BOOST_MPL_PP_PARAMS(i, T) > result_; \
  39     typedef result_ type; \
  40 }; \
  41 /**/
  42
  43 #else
  44
  45 #   define BOOST_MPL_AUX_PASS_THROUGH_LAMBDA_SPEC(i, name) /**/
  46
  47 #endif
  48
  49 #endif // BOOST_MPL_AUX_LAMBDA_SPEC_HPP_INCLUDED