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+
+// (C) Copyright Edward Diener 2011,2012,2013
+// Use, modification and distribution are 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).
+
+#if !defined(BOOST_TTI_HAS_MEMBER_FUNCTION_HPP)
+#define BOOST_TTI_HAS_MEMBER_FUNCTION_HPP
+
+#include <boost/config.hpp>
+#include <boost/function_types/property_tags.hpp>
+#include <boost/mpl/vector.hpp>
+#include <boost/preprocessor/cat.hpp>
+#include <boost/tti/detail/ddeftype.hpp>
+#include <boost/tti/detail/dmem_fun.hpp>
+#include <boost/tti/gen/has_member_function_gen.hpp>
+#include <boost/tti/gen/namespace_gen.hpp>
+
+/*
+
+ The succeeding comments in this file are in doxygen format.
+
+*/
+
+/** \file
+*/
+
+/// Expands to a metafunction which tests whether a member function with a particular name and signature exists.
+/**
+
+ trait = the name of the metafunction within the tti namespace.
+
+ name = the name of the inner member.
+
+ generates a metafunction called "trait" where 'trait' is the macro parameter.<br />
+
+ template<class BOOST_TTI_TP_T,class BOOST_TTI_R,class BOOST_TTI_FS,class BOOST_TTI_TAG>
+ struct trait
+ {
+ static const value = unspecified;
+ typedef mpl::bool_<true-or-false> type;
+ };
+
+ The metafunction types and return:
+
+ BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'
+ OR
+ a pointer to member function as a single type.
+
+ BOOST_TTI_TP_R = (optional) the return type of the member function
+ if the first parameter is the enclosing type.
+
+ BOOST_TTI_TP_FS = (optional) the parameters of the member function as a boost::mpl forward sequence
+ if the first parameter is the enclosing type and the member function parameters
+ are not empty.
+
+ BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the member function
+ if the first parameter is the enclosing type and a tag is needed.
+
+ returns = 'value' is true if the 'name' exists,
+ with the appropriate member function type,
+ otherwise 'value' is false.
+
+*/
+#define BOOST_TTI_TRAIT_HAS_MEMBER_FUNCTION(trait,name) \
+ BOOST_TTI_DETAIL_TRAIT_HAS_MEMBER_FUNCTION(trait,name) \
+ template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_R = BOOST_TTI_NAMESPACE::detail::deftype,class BOOST_TTI_TP_FS = boost::mpl::vector<>,class BOOST_TTI_TP_TAG = boost::function_types::null_tag> \
+ struct trait \
+ { \
+ typedef typename \
+ BOOST_PP_CAT(trait,_detail_hmf)<BOOST_TTI_TP_T,BOOST_TTI_TP_R,BOOST_TTI_TP_FS,BOOST_TTI_TP_TAG>::type type; \
+ BOOST_STATIC_CONSTANT(bool,value=type::value); \
+ }; \
+/**/
+
+/// Expands to a metafunction which tests whether a member function with a particular name and signature exists.
+/**
+
+ name = the name of the inner member.
+
+ generates a metafunction called "has_member_function_name" where 'name' is the macro parameter.
+
+ template<class BOOST_TTI_TP_T,class BOOST_TTI_TP_R,class BOOST_TTI_TP_FS,class BOOST_TTI_TP_TAG>
+ struct has_member_function_name
+ {
+ static const value = unspecified;
+ typedef mpl::bool_<true-or-false> type;
+ };
+
+ The metafunction types and return:
+
+ BOOST_TTI_TP_T = the enclosing type in which to look for our 'name'
+ OR
+ a pointer to member function as a single type.
+
+ BOOST_TTI_TP_R = (optional) the return type of the member function
+ if the first parameter is the enclosing type.
+
+ BOOST_TTI_TP_FS = (optional) the parameters of the member function as a boost::mpl forward sequence
+ if the first parameter is the enclosing type and the member function parameters
+ are not empty.
+
+ BOOST_TTI_TP_TAG = (optional) a boost::function_types tag to apply to the member function
+ if the first parameter is the enclosing type and a tag is needed.
+
+ returns = 'value' is true if the 'name' exists,
+ with the appropriate member function type,
+ otherwise 'value' is false.
+
+*/
+#define BOOST_TTI_HAS_MEMBER_FUNCTION(name) \
+ BOOST_TTI_TRAIT_HAS_MEMBER_FUNCTION \
+ ( \
+ BOOST_TTI_HAS_MEMBER_FUNCTION_GEN(name), \
+ name \
+ ) \
+/**/
+
+#endif // BOOST_TTI_HAS_MEMBER_FUNCTION_HPP