/*============================================================================= | |
Copyright (c) 2001-2007 Joel de Guzman | |
Distributed under the Boost Software License, Version 1.0. (See accompanying | |
file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
==============================================================================*/ | |
#if !defined(BOOST_PP_IS_ITERATING) | |
#if !defined(PHOENIX_BIND_DETAIL_FUNCTION_PTR_HPP) | |
#define PHOENIX_BIND_DETAIL_FUNCTION_PTR_HPP | |
#include <boost/preprocessor/iterate.hpp> | |
#include <boost/preprocessor/repetition/enum_params.hpp> | |
#include <boost/preprocessor/repetition/enum_binary_params.hpp> | |
#include <boost/preprocessor/dec.hpp> | |
namespace boost { namespace phoenix { namespace detail | |
{ | |
template <int N> | |
struct function_ptr_impl | |
{ | |
template <typename RT, typename FP> | |
struct impl; | |
}; | |
template <int N, typename RT, typename FP> | |
struct function_ptr : function_ptr_impl<N>::template impl<RT, FP> | |
{ | |
typedef typename function_ptr_impl<N>::template impl<RT, FP> base; | |
function_ptr(FP fp) | |
: base(fp) {} | |
}; | |
template <> | |
struct function_ptr_impl<0> | |
{ | |
template <typename RT, typename FP> | |
struct impl | |
{ | |
typedef RT result_type; | |
impl(FP fp) | |
: fp(fp) {} | |
RT operator()() const | |
{ | |
return fp(); | |
} | |
FP fp; | |
}; | |
}; | |
#define BOOST_PP_ITERATION_PARAMS_1 \ | |
(3, (1, PHOENIX_COMPOSITE_LIMIT, \ | |
"boost/spirit/home/phoenix/bind/detail/function_ptr.hpp")) | |
#include BOOST_PP_ITERATE() | |
}}} // namespace boost::phoenix::detail | |
#endif | |
/////////////////////////////////////////////////////////////////////////////// | |
// | |
// Preprocessor vertical repetition code | |
// | |
/////////////////////////////////////////////////////////////////////////////// | |
#else // defined(BOOST_PP_IS_ITERATING) | |
#define N BOOST_PP_ITERATION() | |
template <> | |
struct function_ptr_impl<N> | |
{ | |
template <typename RT, typename FP> | |
struct impl | |
{ | |
template <BOOST_PP_ENUM_PARAMS(N, typename T)> | |
struct result | |
{ | |
typedef RT type; | |
}; | |
impl(FP fp) | |
: fp(fp) {} | |
template <BOOST_PP_ENUM_PARAMS(N, typename A)> | |
RT operator()(BOOST_PP_ENUM_BINARY_PARAMS(N, A, & _)) const | |
{ | |
return fp(BOOST_PP_ENUM_PARAMS(N, _)); | |
} | |
FP fp; | |
}; | |
}; | |
#undef N | |
#endif // defined(BOOST_PP_IS_ITERATING) | |