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- // (C) Copyright Jeremy Siek 2002.
- // Distributed under 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)
- #include <boost/iterator/iterator_concepts.hpp>
- #include <boost/iterator/iterator_categories.hpp>
- #include <boost/operators.hpp>
- #include <iterator>
- #include <cstddef>
- struct new_random_access
- : std::random_access_iterator_tag
- , boost::random_access_traversal_tag
- {};
- struct new_iterator
- {
- typedef new_random_access iterator_category;
- typedef int value_type;
- typedef std::ptrdiff_t difference_type;
- typedef int* pointer;
- typedef int& reference;
- int& operator*() const { return *m_x; }
- new_iterator& operator++() { return *this; }
- new_iterator operator++(int) { return *this; }
- new_iterator& operator--() { return *this; }
- new_iterator operator--(int) { return *this; }
- new_iterator& operator+=(std::ptrdiff_t) { return *this; }
- new_iterator operator+(std::ptrdiff_t) { return *this; }
- new_iterator& operator-=(std::ptrdiff_t) { return *this; }
- std::ptrdiff_t operator-(const new_iterator&) const { return 0; }
- new_iterator operator-(std::ptrdiff_t) const { return *this; }
- bool operator==(const new_iterator&) const { return false; }
- bool operator!=(const new_iterator&) const { return false; }
- bool operator<(const new_iterator&) const { return false; }
- int* m_x;
- };
- new_iterator operator+(std::ptrdiff_t, new_iterator x) { return x; }
- struct old_iterator
- {
- typedef std::random_access_iterator_tag iterator_category;
- typedef int value_type;
- typedef std::ptrdiff_t difference_type;
- typedef int* pointer;
- typedef int& reference;
- int& operator*() const { return *m_x; }
- old_iterator& operator++() { return *this; }
- old_iterator operator++(int) { return *this; }
- old_iterator& operator--() { return *this; }
- old_iterator operator--(int) { return *this; }
- old_iterator& operator+=(std::ptrdiff_t) { return *this; }
- old_iterator operator+(std::ptrdiff_t) { return *this; }
- old_iterator& operator-=(std::ptrdiff_t) { return *this; }
- old_iterator operator-(std::ptrdiff_t) const { return *this; }
- std::ptrdiff_t operator-(const old_iterator&) const { return 0; }
- bool operator==(const old_iterator&) const { return false; }
- bool operator!=(const old_iterator&) const { return false; }
- bool operator<(const old_iterator&) const { return false; }
- int* m_x;
- };
- old_iterator operator+(std::ptrdiff_t, old_iterator x) { return x; }
- int
- main()
- {
- boost::iterator_traversal<new_iterator>::type tc;
- boost::random_access_traversal_tag derived = tc;
- (void)derived;
-
- boost::function_requires<
- boost_concepts::WritableIteratorConcept<int*> >();
- boost::function_requires<
- boost_concepts::LvalueIteratorConcept<int*> >();
- boost::function_requires<
- boost_concepts::RandomAccessTraversalConcept<int*> >();
- boost::function_requires<
- boost_concepts::ReadableIteratorConcept<const int*> >();
- boost::function_requires<
- boost_concepts::LvalueIteratorConcept<const int*> >();
- boost::function_requires<
- boost_concepts::RandomAccessTraversalConcept<const int*> >();
- boost::function_requires<
- boost_concepts::WritableIteratorConcept<new_iterator> >();
- boost::function_requires<
- boost_concepts::LvalueIteratorConcept<new_iterator> >();
- boost::function_requires<
- boost_concepts::RandomAccessTraversalConcept<new_iterator> >();
- boost::function_requires<
- boost_concepts::WritableIteratorConcept<old_iterator> >();
- boost::function_requires<
- boost_concepts::LvalueIteratorConcept<old_iterator> >();
- boost::function_requires<
- boost_concepts::RandomAccessTraversalConcept<old_iterator> >();
- boost::function_requires<
- boost_concepts::InteroperableIteratorConcept<int*, int const*> >();
- return 0;
- }
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