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