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1 | /* |
2 | * | |
3 | * Copyright (c) 1998-2002 | |
4 | * John Maddock | |
5 | * | |
6 | * Use, modification and distribution are subject to the | |
7 | * Boost Software License, Version 1.0. (See accompanying file | |
8 | * LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
9 | * | |
10 | */ | |
11 | ||
12 | /* | |
13 | * LOCATION: see http://www.boost.org for most recent version. | |
14 | * FILE iterator_traits.cpp | |
15 | * VERSION see <boost/version.hpp> | |
16 | * DESCRIPTION: Declares iterator traits workarounds. | |
17 | */ | |
18 | ||
19 | #ifndef BOOST_REGEX_V4_ITERATOR_TRAITS_HPP | |
20 | #define BOOST_REGEX_V4_ITERATOR_TRAITS_HPP | |
21 | ||
22 | #ifdef BOOST_MSVC | |
23 | #pragma warning(push) | |
24 | #pragma warning(disable: 4103) | |
25 | #endif | |
26 | #ifdef BOOST_HAS_ABI_HEADERS | |
27 | # include BOOST_ABI_PREFIX | |
28 | #endif | |
29 | #ifdef BOOST_MSVC | |
30 | #pragma warning(pop) | |
31 | #endif | |
32 | ||
33 | namespace boost{ | |
34 | namespace BOOST_REGEX_DETAIL_NS{ | |
35 | ||
36 | #if defined(BOOST_NO_STD_ITERATOR_TRAITS) | |
37 | ||
38 | template <class T> | |
39 | struct regex_iterator_traits | |
40 | { | |
41 | typedef typename T::iterator_category iterator_category; | |
42 | typedef typename T::value_type value_type; | |
43 | #if !defined(BOOST_NO_STD_ITERATOR) | |
44 | typedef typename T::difference_type difference_type; | |
45 | typedef typename T::pointer pointer; | |
46 | typedef typename T::reference reference; | |
47 | #else | |
48 | typedef std::ptrdiff_t difference_type; | |
49 | typedef value_type* pointer; | |
50 | typedef value_type& reference; | |
51 | #endif | |
52 | }; | |
53 | ||
54 | template <class T> | |
55 | struct pointer_iterator_traits | |
56 | { | |
57 | typedef std::ptrdiff_t difference_type; | |
58 | typedef T value_type; | |
59 | typedef T* pointer; | |
60 | typedef T& reference; | |
61 | typedef std::random_access_iterator_tag iterator_category; | |
62 | }; | |
63 | template <class T> | |
64 | struct const_pointer_iterator_traits | |
65 | { | |
66 | typedef std::ptrdiff_t difference_type; | |
67 | typedef T value_type; | |
68 | typedef const T* pointer; | |
69 | typedef const T& reference; | |
70 | typedef std::random_access_iterator_tag iterator_category; | |
71 | }; | |
72 | ||
73 | template<> | |
74 | struct regex_iterator_traits<char*> : pointer_iterator_traits<char>{}; | |
75 | template<> | |
76 | struct regex_iterator_traits<const char*> : const_pointer_iterator_traits<char>{}; | |
77 | template<> | |
78 | struct regex_iterator_traits<wchar_t*> : pointer_iterator_traits<wchar_t>{}; | |
79 | template<> | |
80 | struct regex_iterator_traits<const wchar_t*> : const_pointer_iterator_traits<wchar_t>{}; | |
81 | // | |
82 | // the follwoing are needed for ICU support: | |
83 | // | |
84 | template<> | |
85 | struct regex_iterator_traits<unsigned char*> : pointer_iterator_traits<char>{}; | |
86 | template<> | |
87 | struct regex_iterator_traits<const unsigned char*> : const_pointer_iterator_traits<char>{}; | |
88 | template<> | |
89 | struct regex_iterator_traits<int*> : pointer_iterator_traits<int>{}; | |
90 | template<> | |
91 | struct regex_iterator_traits<const int*> : const_pointer_iterator_traits<int>{}; | |
92 | ||
93 | #ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T | |
94 | template<> | |
95 | struct regex_iterator_traits<unsigned short*> : pointer_iterator_traits<unsigned short>{}; | |
96 | template<> | |
97 | struct regex_iterator_traits<const unsigned short*> : const_pointer_iterator_traits<unsigned short>{}; | |
98 | #endif | |
99 | ||
100 | #if defined(__SGI_STL_PORT) && defined(__STL_DEBUG) | |
101 | template<> | |
102 | struct regex_iterator_traits<std::string::iterator> : pointer_iterator_traits<char>{}; | |
103 | template<> | |
104 | struct regex_iterator_traits<std::string::const_iterator> : const_pointer_iterator_traits<char>{}; | |
105 | #ifndef BOOST_NO_STD_WSTRING | |
106 | template<> | |
107 | struct regex_iterator_traits<std::wstring::iterator> : pointer_iterator_traits<wchar_t>{}; | |
108 | template<> | |
109 | struct regex_iterator_traits<std::wstring::const_iterator> : const_pointer_iterator_traits<wchar_t>{}; | |
110 | #endif // BOOST_NO_WSTRING | |
111 | #endif // stport | |
112 | ||
113 | #else | |
114 | ||
115 | template <class T> | |
116 | struct regex_iterator_traits : public std::iterator_traits<T> {}; | |
117 | ||
118 | #endif | |
119 | ||
120 | } // namespace BOOST_REGEX_DETAIL_NS | |
121 | } // namespace boost | |
122 | ||
123 | #ifdef BOOST_MSVC | |
124 | #pragma warning(push) | |
125 | #pragma warning(disable: 4103) | |
126 | #endif | |
127 | #ifdef BOOST_HAS_ABI_HEADERS | |
128 | # include BOOST_ABI_SUFFIX | |
129 | #endif | |
130 | #ifdef BOOST_MSVC | |
131 | #pragma warning(pop) | |
132 | #endif | |
133 | ||
134 | #endif | |
135 |