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    1 /*=============================================================================
    2     Copyright (c) 2005 Joel de Guzman
    3 
    4     Use, modification and distribution is subject to the Boost Software
    5     License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
    6     http://www.boost.org/LICENSE_1_0.txt)
    7 ==============================================================================*/
    8 #if !defined(FUSION_LIST_TO_CONS_07172005_1041)
    9 #define FUSION_LIST_TO_CONS_07172005_1041
   10 
   11 #include <boost/fusion/sequence/container/list/cons.hpp>
   12 #include <boost/fusion/sequence/container/list/limits.hpp>
   13 #include <boost/preprocessor/repetition/enum.hpp>
   14 #include <boost/preprocessor/repetition/enum_params.hpp>
   15 #include <boost/preprocessor/repetition/enum_shifted_params.hpp>
   16 #include <boost/preprocessor/arithmetic/dec.hpp>
   17 
   18 #define FUSION_VOID(z, n, _) void_
   19 
   20 namespace boost { namespace fusion
   21 {
   22     struct nil;
   23     struct void_;
   24 }}
   25 
   26 namespace boost { namespace fusion { namespace detail
   27 {
   28     template <BOOST_PP_ENUM_PARAMS(FUSION_MAX_LIST_SIZE, typename T)>
   29     struct list_to_cons
   30     {
   31         typedef T0 head_type;
   32         typedef list_to_cons<
   33             BOOST_PP_ENUM_SHIFTED_PARAMS(FUSION_MAX_LIST_SIZE, T), void_>
   34         tail_list_to_cons;
   35         typedef typename tail_list_to_cons::type tail_type;
   36 
   37         typedef cons<head_type, tail_type> type;
   38 
   39         #include <boost/fusion/sequence/container/list/detail/list_to_cons_call.hpp>
   40     };
   41 
   42     template <>
   43     struct list_to_cons<BOOST_PP_ENUM(FUSION_MAX_LIST_SIZE, FUSION_VOID, _)>
   44     {
   45         typedef nil type;
   46     };
   47 }}}
   48 
   49 #undef FUSION_VOID
   50 #endif