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62 lines
1.4 KiB
62 lines
1.4 KiB
3 years ago
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// Copyright David Abrahams 2003.
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef ITERATOR_TRAITS_DWA200347_HPP
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# define ITERATOR_TRAITS_DWA200347_HPP
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# include <boost/detail/workaround.hpp>
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#include <iterator>
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namespace boost {
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namespace iterators {
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// Macro for supporting old compilers, no longer needed but kept
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// for backwards compatibility (it was documented).
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#define BOOST_ITERATOR_CATEGORY iterator_category
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template <class Iterator>
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struct iterator_value
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{
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typedef typename std::iterator_traits<Iterator>::value_type type;
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};
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template <class Iterator>
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struct iterator_reference
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{
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typedef typename std::iterator_traits<Iterator>::reference type;
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};
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template <class Iterator>
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struct iterator_pointer
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{
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typedef typename std::iterator_traits<Iterator>::pointer type;
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};
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template <class Iterator>
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struct iterator_difference
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{
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typedef typename std::iterator_traits<Iterator>::difference_type type;
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};
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template <class Iterator>
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struct iterator_category
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{
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typedef typename std::iterator_traits<Iterator>::iterator_category type;
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};
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} // namespace iterators
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using iterators::iterator_value;
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using iterators::iterator_reference;
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using iterators::iterator_pointer;
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using iterators::iterator_difference;
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using iterators::iterator_category;
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} // namespace boost
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#endif // ITERATOR_TRAITS_DWA200347_HPP
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