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more work on the specification of iterator_category

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[SVN r21662]
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Jeremy Siek
2004-01-13 05:56:29 +00:00
parent 2edb688882
commit ec8d069057
9 changed files with 157 additions and 49 deletions
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19
doc/reverse_iterator_ref.rst
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@ -27,9 +27,22 @@
};
The ``iterator_category`` member is a type convertible to the tags
corresponding to each standard concept modeled by
``reverse_iterator``, as described in the models section.
The ``iterator_category`` member is a type convertible to the iterator
tag given by the following algorithm. Let ``T`` be
``iterator_traits<Iterator>::value_type``, ``R`` be
``iterator_traits<Iterator>::reference``, and ``C`` be
``traveral_category<Iterator>::type``.
::
if (R is a reference to T) then
if (C is convertible to random_access_traversal_tag) then
random_access_iterator_tag
else
bidirectional_iterator_tag
else
input_iterator_tag
``reverse_iterator`` requirements