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fixed a transform_iterator issue

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[SVN r21688]
This commit is contained in:
Jeremy Siek
2004-01-13 18:30:23 +00:00
parent ea3baba376
commit e7b5604ec5
4 changed files with 65 additions and 52 deletions
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32
doc/transform_iterator_ref.rst
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@ -35,27 +35,25 @@
};
The ``reference`` type of ``transform_iterator`` is
If ``Reference`` is ``use_default`` then the ``reference`` member of
``transform_iterator`` is
``result_of<UnaryFunction(iterator_traits<Iterator>::reference)>::type``.
The ``value_type`` is ``remove_cv<remove_reference<reference> >::type``.
Otherwise, ``reference`` is ``Reference``.
The ``iterator_category`` member is a type convertible to the iterator
tag given by the following algorithm. Let ``C`` be
``traveral_category<Iterator>::type``.
::
if (reference is a reference to value_type) then
if (C is convertible to random_access_traversal_tag) then
random_access_iterator_tag
else if (C is convertible to bidirectional_traversal_tag) then
bidirectional_iterator_tag
else
forward_iterator_tag
else
input_iterator_tag
If ``Value`` is ``use_default`` then the ``value_type`` member is
``remove_cv<remove_reference<reference> >::type``. Otherwise,
``value_type`` is ``Value``.
If ``Iterator`` models Readable Lvalue Iterator and if ``Iterator``
models Random Access Traversal Iterator, then ``iterator_category`` is
convertible to ``random_access_iterator_tag``. Otherwise, if
``Iterator`` models Bidirectional Traversal Iterator, then
``iterator_category`` is convertible to
``bidirectional_iterator_tag``. Otherwise ``iterator_category`` is
convertible to ``forward_iterator_tag``. If ``Iterator`` does not
model Readable Lvalue Iterator then ``iterator_category`` is
convertible to ``input_iterator_tag``.
``transform_iterator`` requirements