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

   1 #if !defined(BOOST_PROTO_DONT_USE_PREPROCESSED_FILES)
   2
   3     #include <boost/proto/detail/preprocessed/poly_function_traits.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/poly_function_traits.hpp")
   9     #endif
  10
  11     ///////////////////////////////////////////////////////////////////////////////
  12     // poly_function_traits.hpp
  13     // Contains specializations of poly_function_traits and as_mono_function
  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/poly_function_traits.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
  32
  33     #define N BOOST_PP_ITERATION()
  34
  35     ////////////////////////////////////////////////////////////////////////////////////////////////
  36     template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
  37     struct poly_function_traits<PolyFun, PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), mpl::size_t<sizeof(poly_function_t)> >
  38     {
  39         typedef typename PolyFun::template impl<BOOST_PP_ENUM_PARAMS(N, const A)> function_type;
  40         typedef typename function_type::result_type result_type;
  41     };
  42
  43     ////////////////////////////////////////////////////////////////////////////////////////////////
  44     template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
  45     struct as_mono_function_impl<PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), true>
  46     {
  47         typedef typename PolyFun::template impl<BOOST_PP_ENUM_PARAMS(N, const A)> type;
  48     };
  49
  50     ////////////////////////////////////////////////////////////////////////////////////////////////
  51     template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
  52     struct as_mono_function_impl<PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), false>
  53     {
  54         typedef PolyFun type;
  55     };
  56
  57     ////////////////////////////////////////////////////////////////////////////////////////////////
  58     template<typename PolyFun BOOST_PP_ENUM_TRAILING_PARAMS(N, typename A)>
  59     struct as_mono_function<PolyFun(BOOST_PP_ENUM_PARAMS(N, A))>
  60       : as_mono_function_impl<PolyFun(BOOST_PP_ENUM_PARAMS(N, A)), is_poly_function<PolyFun>::value>
  61     {};
  62
  63     #undef N
  64
  65 #endif // BOOST_PROTO_DONT_USE_PREPROCESSED_FILES