// Copyright David Abrahams, Daniel Wallin 2003. Use, modification and | |
// distribution is subject to 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) | |
#ifndef BOOST_PARAMETER_MACROS_050412_HPP | |
#define BOOST_PARAMETER_MACROS_050412_HPP | |
#include <boost/preprocessor/tuple/elem.hpp> | |
#include <boost/preprocessor/repetition/repeat_from_to.hpp> | |
#include <boost/preprocessor/arithmetic/inc.hpp> | |
#include <boost/preprocessor/logical/bool.hpp> | |
#include <boost/preprocessor/punctuation/comma_if.hpp> | |
#include <boost/preprocessor/control/expr_if.hpp> | |
#include <boost/preprocessor/repetition/enum_params.hpp> | |
#include <boost/preprocessor/repetition/enum_binary_params.hpp> | |
#include <boost/preprocessor/cat.hpp> | |
#include <boost/detail/workaround.hpp> | |
#define BOOST_PARAMETER_FUN_TEMPLATE_HEAD1(n) \ | |
template<BOOST_PP_ENUM_PARAMS(n, class T)> | |
#define BOOST_PARAMETER_FUN_TEMPLATE_HEAD0(n) | |
#if ! defined(BOOST_NO_SFINAE) && ! BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592)) | |
# define BOOST_PARAMETER_MATCH_TYPE(n, param) \ | |
BOOST_PP_EXPR_IF(n, typename) param::match \ | |
< \ | |
BOOST_PP_ENUM_PARAMS(n, T) \ | |
>::type | |
#else | |
# define BOOST_PARAMETER_MATCH_TYPE(n, param) param | |
#endif | |
#define BOOST_PARAMETER_FUN_DECL(z, n, params) \ | |
\ | |
BOOST_PP_CAT(BOOST_PARAMETER_FUN_TEMPLATE_HEAD, BOOST_PP_BOOL(n))(n) \ | |
\ | |
BOOST_PP_TUPLE_ELEM(3, 0, params) \ | |
BOOST_PP_TUPLE_ELEM(3, 1, params)( \ | |
BOOST_PP_ENUM_BINARY_PARAMS(n, T, const& p) \ | |
BOOST_PP_COMMA_IF(n) \ | |
BOOST_PARAMETER_MATCH_TYPE(n,BOOST_PP_TUPLE_ELEM(3, 2, params)) \ | |
kw = BOOST_PP_TUPLE_ELEM(3, 2, params)() \ | |
) \ | |
{ \ | |
return BOOST_PP_CAT(BOOST_PP_TUPLE_ELEM(3, 1, params), _with_named_params)( \ | |
kw(BOOST_PP_ENUM_PARAMS(n, p)) \ | |
); \ | |
} | |
// Generates: | |
// | |
// template<class Params> | |
// ret name ## _with_named_params(Params const&); | |
// | |
// template<class T0> | |
// ret name(T0 const& p0, typename parameters::match<T0>::type kw = parameters()) | |
// { | |
// return name ## _with_named_params(kw(p0)); | |
// } | |
// | |
// template<class T0, ..., class TN> | |
// ret name(T0 const& p0, ..., TN const& PN | |
// , typename parameters::match<T0, ..., TN>::type kw = parameters()) | |
// { | |
// return name ## _with_named_params(kw(p0, ..., pN)); | |
// } | |
// | |
// template<class Params> | |
// ret name ## _with_named_params(Params const&) | |
// | |
// lo and hi determines the min and max arity of the generated functions. | |
#define BOOST_PARAMETER_FUN(ret, name, lo, hi, parameters) \ | |
\ | |
template<class Params> \ | |
ret BOOST_PP_CAT(name, _with_named_params)(Params const& p); \ | |
\ | |
BOOST_PP_REPEAT_FROM_TO( \ | |
lo, BOOST_PP_INC(hi), BOOST_PARAMETER_FUN_DECL, (ret, name, parameters)) \ | |
\ | |
template<class Params> \ | |
ret BOOST_PP_CAT(name, _with_named_params)(Params const& p) | |
#define BOOST_PARAMETER_MEMFUN(ret, name, lo, hi, parameters) \ | |
\ | |
BOOST_PP_REPEAT_FROM_TO( \ | |
lo, BOOST_PP_INC(hi), BOOST_PARAMETER_FUN_DECL, (ret, name, parameters)) \ | |
\ | |
template<class Params> \ | |
ret BOOST_PP_CAT(name, _with_named_params)(Params const& p) | |
#endif // BOOST_PARAMETER_MACROS_050412_HPP | |