ceph/src/boost/boost/proto/detail/generate_by_value.hpp

   1 #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
   2
   3     #include <boost/proto/detail/preprocessed/generate_by_value.hpp>
   4
   5 #elif !defined(BOOST_PP_IS_ITERATING)
   6
   7     #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
   8         #pragma wave option(preserve: 2, line: 0, output: "preprocessed/generate_by_value.hpp")
   9     #endif
  10
  11     ///////////////////////////////////////////////////////////////////////////////
  12     /// \file generate_by_value.hpp
  13     /// Contains definition of by_value_generator_\<\> class template.
  14     //
  15     //  Copyright 2008 Eric Niebler. Distributed under the Boost
  16     //  Software License, Version 1.0. (See accompanying file
  17     //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  18
  19     #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
  20         #pragma wave option(preserve: 1)
  21     #endif
  22
  23     #define BOOST_PP_ITERATION_PARAMS_1                                                             \
  24         (3, (1, BOOST_PROTO_MAX_ARITY, <boost/proto/detail/generate_by_value.hpp>))
  25     #include BOOST_PP_ITERATE()
  26
  27     #if defined(__WAVE__) && defined(BOOST_PROTO_CREATE_PREPROCESSED_FILES)
  28         #pragma wave option(output: null)
  29     #endif
  30
  31 #else // BOOST_PP_IS_ITERATING
  32
  33     #define N BOOST_PP_ITERATION()
  34
  35     template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
  36     struct by_value_generator_<
  37         proto::expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
  38     >
  39     {
  40         typedef
  41             BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
  42         src_args;
  43
  44         typedef
  45             BOOST_PP_CAT(list, N)<
  46                 BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
  47             >
  48         dst_args;
  49
  50         typedef proto::expr<Tag, src_args, N> src_type;
  51         typedef proto::expr<Tag, dst_args, N> type;
  52
  53         BOOST_FORCEINLINE
  54         static type const call(src_type const &e)
  55         {
  56             type that = {
  57                 BOOST_PP_ENUM_PARAMS(N, e.child)
  58             };
  59             return that;
  60         }
  61     };
  62
  63     template<typename Tag BOOST_PP_ENUM_TRAILING_PARAMS(N, typename Arg) >
  64     struct by_value_generator_<
  65         proto::basic_expr<Tag, BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>, N>
  66     >
  67     {
  68         typedef
  69             BOOST_PP_CAT(list, N)<BOOST_PP_ENUM_PARAMS(N, Arg)>
  70         src_args;
  71
  72         typedef
  73             BOOST_PP_CAT(list, N)<
  74                 BOOST_PP_ENUM_BINARY_PARAMS(N, typename uncvref<Arg, >::type BOOST_PP_INTERCEPT)
  75             >
  76         dst_args;
  77
  78         typedef proto::basic_expr<Tag, src_args, N> src_type;
  79         typedef proto::basic_expr<Tag, dst_args, N> type;
  80
  81         BOOST_FORCEINLINE
  82         static type const call(src_type const &e)
  83         {
  84             type that = {
  85                 BOOST_PP_ENUM_PARAMS(N, e.child)
  86             };
  87             return that;
  88         }
  89     };
  90
  91     #undef N
  92
  93 #endif