summaryrefslogtreecommitdiffstats
blob: 53e137604121cb1e1fd97b99dcd81e3e27470b32 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/*
 *
 * Copyright (c) 1998-2002
 * John Maddock
 *
 * 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)
 *
 */

 /*
  *   LOCATION:    see http://www.boost.org for most recent version.
  *   FILE         iterator_traits.cpp
  *   VERSION      see <boost/version.hpp>
  *   DESCRIPTION: Declares iterator traits workarounds.
  */

#ifndef BOOST_REGEX_V4_ITERATOR_TRAITS_HPP
#define BOOST_REGEX_V4_ITERATOR_TRAITS_HPP

#ifdef BOOST_MSVC
#pragma warning(push)
#pragma warning(disable: 4103)
#endif
#ifdef BOOST_HAS_ABI_HEADERS
#  include BOOST_ABI_PREFIX
#endif
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif

namespace boost{
namespace re_detail{

#if defined(BOOST_NO_STD_ITERATOR_TRAITS)

template <class T>
struct regex_iterator_traits 
{
  typedef typename T::iterator_category iterator_category;
  typedef typename T::value_type        value_type;
#if !defined(BOOST_NO_STD_ITERATOR)
  typedef typename T::difference_type   difference_type;
  typedef typename T::pointer           pointer;
  typedef typename T::reference         reference;
#else
  typedef std::ptrdiff_t                difference_type;
  typedef value_type*                   pointer;
  typedef value_type&                   reference;
#endif
};

template <class T>
struct pointer_iterator_traits
{
   typedef std::ptrdiff_t difference_type;
   typedef T value_type;
   typedef T* pointer;
   typedef T& reference;
   typedef std::random_access_iterator_tag iterator_category;
};
template <class T>
struct const_pointer_iterator_traits
{
   typedef std::ptrdiff_t difference_type;
   typedef T value_type;
   typedef const T* pointer;
   typedef const T& reference;
   typedef std::random_access_iterator_tag iterator_category;
};

template<>
struct regex_iterator_traits<char*> : pointer_iterator_traits<char>{};
template<>
struct regex_iterator_traits<const char*> : const_pointer_iterator_traits<char>{};
template<>
struct regex_iterator_traits<wchar_t*> : pointer_iterator_traits<wchar_t>{};
template<>
struct regex_iterator_traits<const wchar_t*> : const_pointer_iterator_traits<wchar_t>{};
//
// the follwoing are needed for ICU support:
//
template<>
struct regex_iterator_traits<unsigned char*> : pointer_iterator_traits<char>{};
template<>
struct regex_iterator_traits<const unsigned char*> : const_pointer_iterator_traits<char>{};
template<>
struct regex_iterator_traits<int*> : pointer_iterator_traits<int>{};
template<>
struct regex_iterator_traits<const int*> : const_pointer_iterator_traits<int>{};

#ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T
template<>
struct regex_iterator_traits<unsigned short*> : pointer_iterator_traits<unsigned short>{};
template<>
struct regex_iterator_traits<const unsigned short*> : const_pointer_iterator_traits<unsigned short>{};
#endif

#if defined(__SGI_STL_PORT) && defined(__STL_DEBUG)
template<>
struct regex_iterator_traits<std::string::iterator> : pointer_iterator_traits<char>{};
template<>
struct regex_iterator_traits<std::string::const_iterator> : const_pointer_iterator_traits<char>{};
#ifndef BOOST_NO_STD_WSTRING
template<>
struct regex_iterator_traits<std::wstring::iterator> : pointer_iterator_traits<wchar_t>{};
template<>
struct regex_iterator_traits<std::wstring::const_iterator> : const_pointer_iterator_traits<wchar_t>{};
#endif // BOOST_NO_WSTRING
#endif // stport

#else

template <class T>
struct regex_iterator_traits : public std::iterator_traits<T> {};

#endif

} // namespace re_detail
} // namespace boost

#ifdef BOOST_MSVC
#pragma warning(push)
#pragma warning(disable: 4103)
#endif
#ifdef BOOST_HAS_ABI_HEADERS
#  include BOOST_ABI_SUFFIX
#endif
#ifdef BOOST_MSVC
#pragma warning(pop)
#endif

#endif