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Some progress on indirect_iterator

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[SVN r21710]
This commit is contained in:
Dave Abrahams
2004-01-13 23:03:18 +00:00
parent 736044938d
commit 0f8c236e9d
15 changed files with 524 additions and 127 deletions
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39
doc/iterator_facade_ref.rst
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@ -173,44 +173,9 @@ interoperable with ``X``.
-------------------------------------
The ``iterator_category`` member of ``iterator_facade<X,V,R,C,D>``
is a type which satisfies the following conditions:
* if ``C`` is convertible to ``std::input_iterator_tag`` or
``C`` is convertible to ``std::output_iterator_tag``,
``iterator_category`` is the same as ``C``.
* Otherwise, if ``C`` is not convertible to
``incrementable_traversal_tag``, the program is ill-formed
* Otherwise:
- ``iterator_category`` is convertible to the iterator
category tag or tags given by the following algorithm, and
not to any more-derived iterator category tag or tags::
if (R is a reference type
&& C is convertible to forward_traversal_tag)
{
if (C is convertible to random_access_traversal_tag)
random_access_iterator_tag
else if (C is convertible to bidirectional_traversal_tag)
bidirectional_iterator_tag
else
forward_iterator_tag
}
else
{
if (C is convertible to single_pass_traversal_tag
&& R is convertible to V)
input_iterator_tag
else
C
}
- ``iterator_traversal<X>::type`` is convertible to the most
derived traversal tag type to which ``C`` is also
convertible, and not to any more-derived traversal tag type.
satisfies the following conditions:
.. include:: facade_iterator_category.rst
``iterator_facade`` operations
------------------------------