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Merged regex-4 branch.

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[SVN r18430]
This commit is contained in:
John Maddock
2003-05-17 11:45:48 +00:00
parent a81a1ea30f
commit f0f32bdda1
154 changed files with 32893 additions and 432 deletions
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106
include/boost/regex/v4/iterator_traits.hpp Normal file
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/*
*
* Copyright (c) 1998-2002
* Dr John Maddock
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Dr John Maddock makes no representations
* about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*
*/
/*
* 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 __BORLANDC__
# pragma option push -a8 -b -Vx -Ve -pc -w-8027
#endif
namespace boost{
namespace re_detail{
#if defined(BOOST_NO_STD_ITERATOR_TRAITS) || defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION)
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>{};
#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 __BORLANDC__
# pragma option pop
#endif
#endif