Chris@16: /////////////////////////////////////////////////////////////////////////////
Chris@16: //
Chris@16: // (C) Copyright Ion Gaztanaga  2009-2013.
Chris@16: //
Chris@16: // Distributed under the Boost Software License, Version 1.0.
Chris@16: //    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //          http://www.boost.org/LICENSE_1_0.txt)
Chris@16: //
Chris@16: // See http://www.boost.org/libs/intrusive for documentation.
Chris@16: //
Chris@16: /////////////////////////////////////////////////////////////////////////////
Chris@16: //  This code was modified from the code posted by Alexandre Courpron in his
Chris@16: //  article "Interface Detection" in The Code Project:
Chris@16: //  http://www.codeproject.com/KB/architecture/Detector.aspx
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: // Copyright 2007 Alexandre Courpron
Chris@16: //
Chris@16: // Permission to use, copy, modify, redistribute and sell this software,
Chris@16: // provided that this copyright notice appears on all copies of the software.
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: 
Chris@16: #ifndef BOOST_INTRUSIVE_DETAIL_FUNCTION_DETECTOR_HPP
Chris@16: #define BOOST_INTRUSIVE_DETAIL_FUNCTION_DETECTOR_HPP
Chris@16: 
Chris@101: #ifndef BOOST_CONFIG_HPP
Chris@101: #  include <boost/config.hpp>
Chris@101: #endif
Chris@101: 
Chris@101: #if defined(BOOST_HAS_PRAGMA_ONCE)
Chris@101: #  pragma once
Chris@101: #endif
Chris@16: 
Chris@16: namespace boost {
Chris@16: namespace intrusive {
Chris@16: namespace function_detector {
Chris@16: 
Chris@16:     typedef char NotFoundType;
Chris@16:     struct StaticFunctionType { NotFoundType x [2]; };
Chris@16:     struct NonStaticFunctionType { NotFoundType x [3]; };
Chris@16: 
Chris@16:     enum
Chris@16:          { NotFound          = 0,
Chris@16:            StaticFunction    = sizeof( StaticFunctionType )    - sizeof( NotFoundType ),
Chris@16:            NonStaticFunction = sizeof( NonStaticFunctionType ) - sizeof( NotFoundType )
Chris@16:          };
Chris@16: 
Chris@16: }  //namespace boost {
Chris@16: }  //namespace intrusive {
Chris@16: }  //namespace function_detector {
Chris@16: 
Chris@16: #define BOOST_INTRUSIVE_CREATE_FUNCTION_DETECTOR(Identifier, InstantiationKey) \
Chris@16:    namespace boost { \
Chris@16:    namespace intrusive { \
Chris@16:    namespace function_detector { \
Chris@16:    template < class T, \
Chris@16:             class NonStaticType, \
Chris@16:             class NonStaticConstType, \
Chris@16:             class StaticType > \
Chris@16:    class DetectMember_##InstantiationKey_##Identifier { \
Chris@16:       template < NonStaticType > \
Chris@16:       struct TestNonStaticNonConst ; \
Chris@16:       \
Chris@16:       template < NonStaticConstType > \
Chris@16:       struct TestNonStaticConst ; \
Chris@16:       \
Chris@16:       template < StaticType > \
Chris@16:       struct TestStatic ; \
Chris@16:       \
Chris@16:       template <class U > \
Chris@16:       static NonStaticFunctionType Test( TestNonStaticNonConst<&U::Identifier>*, int ); \
Chris@16:       \
Chris@16:       template <class U > \
Chris@16:       static NonStaticFunctionType Test( TestNonStaticConst<&U::Identifier>*, int ); \
Chris@16:       \
Chris@16:       template <class U> \
Chris@16:       static StaticFunctionType Test( TestStatic<&U::Identifier>*, int ); \
Chris@16:       \
Chris@16:       template <class U> \
Chris@16:       static NotFoundType Test( ... ); \
Chris@16:    public : \
Chris@16:       static const int check = NotFound + (sizeof(Test<T>(0, 0)) - sizeof(NotFoundType));\
Chris@16:    };\
Chris@16: }}} //namespace boost::intrusive::function_detector {
Chris@16: 
Chris@16: #define BOOST_INTRUSIVE_DETECT_FUNCTION(Class, InstantiationKey, ReturnType, Identifier, Params) \
Chris@16:     ::boost::intrusive::function_detector::DetectMember_##InstantiationKey_##Identifier< Class,\
Chris@16:                                          ReturnType (Class::*)Params,\
Chris@16:                                          ReturnType (Class::*)Params const,\
Chris@16:                                          ReturnType (*)Params \
Chris@16:                                        >::check
Chris@16: 
Chris@16: #endif   //@ifndef BOOST_INTRUSIVE_DETAIL_FUNCTION_DETECTOR_HPP