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1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // | |
3 | // (C) Copyright Ion Gaztanaga 2009-2013. | |
4 | // | |
5 | // Distributed under the Boost Software License, Version 1.0. | |
6 | // (See accompanying file LICENSE_1_0.txt or copy at | |
7 | // http://www.boost.org/LICENSE_1_0.txt) | |
8 | // | |
9 | // See http://www.boost.org/libs/intrusive for documentation. | |
10 | // | |
11 | ///////////////////////////////////////////////////////////////////////////// | |
12 | // This code was modified from the code posted by Alexandre Courpron in his | |
13 | // article "Interface Detection" in The Code Project: | |
14 | // http://www.codeproject.com/KB/architecture/Detector.aspx | |
15 | /////////////////////////////////////////////////////////////////////////////// | |
16 | // Copyright 2007 Alexandre Courpron | |
17 | // | |
18 | // Permission to use, copy, modify, redistribute and sell this software, | |
19 | // provided that this copyright notice appears on all copies of the software. | |
20 | /////////////////////////////////////////////////////////////////////////////// | |
21 | ||
22 | #ifndef BOOST_INTRUSIVE_DETAIL_FUNCTION_DETECTOR_HPP | |
23 | #define BOOST_INTRUSIVE_DETAIL_FUNCTION_DETECTOR_HPP | |
24 | ||
25 | #ifndef BOOST_CONFIG_HPP | |
26 | # include <boost/config.hpp> | |
27 | #endif | |
28 | ||
29 | #if defined(BOOST_HAS_PRAGMA_ONCE) | |
30 | # pragma once | |
31 | #endif | |
32 | ||
33 | namespace boost { | |
34 | namespace intrusive { | |
35 | namespace function_detector { | |
36 | ||
37 | typedef char NotFoundType; | |
38 | struct StaticFunctionType { NotFoundType x [2]; }; | |
39 | struct NonStaticFunctionType { NotFoundType x [3]; }; | |
40 | ||
41 | enum | |
42 | { NotFound = 0, | |
43 | StaticFunction = sizeof( StaticFunctionType ) - sizeof( NotFoundType ), | |
44 | NonStaticFunction = sizeof( NonStaticFunctionType ) - sizeof( NotFoundType ) | |
45 | }; | |
46 | ||
47 | } //namespace boost { | |
48 | } //namespace intrusive { | |
49 | } //namespace function_detector { | |
50 | ||
51 | #define BOOST_INTRUSIVE_CREATE_FUNCTION_DETECTOR(Identifier, InstantiationKey) \ | |
52 | namespace boost { \ | |
53 | namespace intrusive { \ | |
54 | namespace function_detector { \ | |
55 | template < class T, \ | |
56 | class NonStaticType, \ | |
57 | class NonStaticConstType, \ | |
58 | class StaticType > \ | |
59 | class DetectMember_##InstantiationKey_##Identifier { \ | |
60 | template < NonStaticType > \ | |
61 | struct TestNonStaticNonConst ; \ | |
62 | \ | |
63 | template < NonStaticConstType > \ | |
64 | struct TestNonStaticConst ; \ | |
65 | \ | |
66 | template < StaticType > \ | |
67 | struct TestStatic ; \ | |
68 | \ | |
69 | template <class U > \ | |
70 | static NonStaticFunctionType Test( TestNonStaticNonConst<&U::Identifier>*, int ); \ | |
71 | \ | |
72 | template <class U > \ | |
73 | static NonStaticFunctionType Test( TestNonStaticConst<&U::Identifier>*, int ); \ | |
74 | \ | |
75 | template <class U> \ | |
76 | static StaticFunctionType Test( TestStatic<&U::Identifier>*, int ); \ | |
77 | \ | |
78 | template <class U> \ | |
79 | static NotFoundType Test( ... ); \ | |
80 | public : \ | |
81 | static const int check = NotFound + (sizeof(Test<T>(0, 0)) - sizeof(NotFoundType));\ | |
82 | };\ | |
83 | }}} //namespace boost::intrusive::function_detector { | |
84 | ||
85 | #define BOOST_INTRUSIVE_DETECT_FUNCTION(Class, InstantiationKey, ReturnType, Identifier, Params) \ | |
86 | ::boost::intrusive::function_detector::DetectMember_##InstantiationKey_##Identifier< Class,\ | |
87 | ReturnType (Class::*)Params,\ | |
88 | ReturnType (Class::*)Params const,\ | |
89 | ReturnType (*)Params \ | |
90 | >::check | |
91 | ||
92 | #endif //@ifndef BOOST_INTRUSIVE_DETAIL_FUNCTION_DETECTOR_HPP |