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Moved pure_traversal_tag to public namespace.

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Also added an import into the boost::detail namespace for backward compatibility with Boost.Range. Added a pure_iterator_traversal metafunction that automatically converts iterator category as well.
This commit is contained in:
Andrey Semashev
2014-07-19 20:57:42 +04:00
parent 785680d929
commit 810b58cfb0
3 changed files with 61 additions and 46 deletions
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15
include/boost/iterator/iterator_concepts.hpp
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@ -248,19 +248,10 @@ namespace boost_concepts
BOOST_concept(InteroperableIterator,(Iterator)(ConstIterator))
{
private:
typedef typename boost::iterators::detail::pure_traversal_tag<
typename boost::iterator_traversal<
Iterator
>::type
>::type traversal_category;
typedef typename boost::iterators::pure_iterator_traversal<Iterator>::type traversal_category;
typedef typename boost::iterators::pure_iterator_traversal<ConstIterator>::type const_traversal_category;
typedef typename boost::iterators::detail::pure_traversal_tag<
typename boost::iterator_traversal<
ConstIterator
>::type
>::type const_traversal_category;
public:
public:
BOOST_CONCEPT_ASSERT((SinglePassIterator<Iterator>));
BOOST_CONCEPT_ASSERT((SinglePassIterator<ConstIterator>));