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135 lines
3.7 KiB
135 lines
3.7 KiB
/* |
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* |
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* Copyright (c) 1998-2002 |
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* John Maddock |
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* |
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* Use, modification and distribution are subject to the |
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* Boost Software License, Version 1.0. (See accompanying file |
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* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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* |
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*/ |
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/* |
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* LOCATION: see http://www.boost.org for most recent version. |
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* FILE iterator_traits.cpp |
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* VERSION see <boost/version.hpp> |
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* DESCRIPTION: Declares iterator traits workarounds. |
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*/ |
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#ifndef BOOST_REGEX_V4_ITERATOR_TRAITS_HPP |
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#define BOOST_REGEX_V4_ITERATOR_TRAITS_HPP |
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#ifdef BOOST_MSVC |
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#pragma warning(push) |
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#pragma warning(disable: 4103) |
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#endif |
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#ifdef BOOST_HAS_ABI_HEADERS |
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# include BOOST_ABI_PREFIX |
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#endif |
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#ifdef BOOST_MSVC |
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#pragma warning(pop) |
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#endif |
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namespace boost{ |
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namespace re_detail{ |
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#if defined(BOOST_NO_STD_ITERATOR_TRAITS) || defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) |
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template <class T> |
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struct regex_iterator_traits |
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{ |
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typedef typename T::iterator_category iterator_category; |
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typedef typename T::value_type value_type; |
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#if !defined(BOOST_NO_STD_ITERATOR) |
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typedef typename T::difference_type difference_type; |
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typedef typename T::pointer pointer; |
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typedef typename T::reference reference; |
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#else |
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typedef std::ptrdiff_t difference_type; |
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typedef value_type* pointer; |
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typedef value_type& reference; |
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#endif |
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}; |
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template <class T> |
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struct pointer_iterator_traits |
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{ |
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typedef std::ptrdiff_t difference_type; |
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typedef T value_type; |
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typedef T* pointer; |
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typedef T& reference; |
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typedef std::random_access_iterator_tag iterator_category; |
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}; |
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template <class T> |
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struct const_pointer_iterator_traits |
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{ |
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typedef std::ptrdiff_t difference_type; |
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typedef T value_type; |
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typedef const T* pointer; |
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typedef const T& reference; |
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typedef std::random_access_iterator_tag iterator_category; |
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}; |
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template<> |
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struct regex_iterator_traits<char*> : pointer_iterator_traits<char>{}; |
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template<> |
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struct regex_iterator_traits<const char*> : const_pointer_iterator_traits<char>{}; |
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template<> |
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struct regex_iterator_traits<wchar_t*> : pointer_iterator_traits<wchar_t>{}; |
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template<> |
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struct regex_iterator_traits<const wchar_t*> : const_pointer_iterator_traits<wchar_t>{}; |
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// |
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// the follwoing are needed for ICU support: |
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// |
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template<> |
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struct regex_iterator_traits<unsigned char*> : pointer_iterator_traits<char>{}; |
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template<> |
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struct regex_iterator_traits<const unsigned char*> : const_pointer_iterator_traits<char>{}; |
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template<> |
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struct regex_iterator_traits<int*> : pointer_iterator_traits<int>{}; |
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template<> |
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struct regex_iterator_traits<const int*> : const_pointer_iterator_traits<int>{}; |
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#ifdef BOOST_REGEX_HAS_OTHER_WCHAR_T |
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template<> |
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struct regex_iterator_traits<unsigned short*> : pointer_iterator_traits<unsigned short>{}; |
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template<> |
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struct regex_iterator_traits<const unsigned short*> : const_pointer_iterator_traits<unsigned short>{}; |
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#endif |
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#if defined(__SGI_STL_PORT) && defined(__STL_DEBUG) |
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template<> |
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struct regex_iterator_traits<std::string::iterator> : pointer_iterator_traits<char>{}; |
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template<> |
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struct regex_iterator_traits<std::string::const_iterator> : const_pointer_iterator_traits<char>{}; |
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#ifndef BOOST_NO_STD_WSTRING |
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template<> |
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struct regex_iterator_traits<std::wstring::iterator> : pointer_iterator_traits<wchar_t>{}; |
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template<> |
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struct regex_iterator_traits<std::wstring::const_iterator> : const_pointer_iterator_traits<wchar_t>{}; |
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#endif // BOOST_NO_WSTRING |
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#endif // stport |
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#else |
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template <class T> |
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struct regex_iterator_traits : public std::iterator_traits<T> {}; |
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#endif |
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} // namespace re_detail |
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} // namespace boost |
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#ifdef BOOST_MSVC |
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#pragma warning(push) |
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#pragma warning(disable: 4103) |
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#endif |
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#ifdef BOOST_HAS_ABI_HEADERS |
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# include BOOST_ABI_SUFFIX |
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#endif |
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#ifdef BOOST_MSVC |
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#pragma warning(pop) |
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#endif |
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#endif |
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