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Apply Howard's inheritance fixes

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[SVN r1293]
This commit is contained in:
Dave Abrahams
2003-05-30 03:07:39 +00:00
parent 2e18357672
commit 1a58125e62
1 changed files with 27 additions and 21 deletions
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10
doc/new-iter-concepts.rst
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@@ -622,14 +622,20 @@ pseudo-code.
:: ::
inherit-category(access-tag, traversal-tag) = inherit-category(access-tag, traversal-tag) =
if (access-tag is convertible to readable_lvalue_iterator_tag if (access-tag is convertible to readable_lvalue_iterator_tag) {
or access-tag is convertible to writable_lvalue_iterator_tag) {
if (traversal-tag is convertible to random_access_traversal_tag) if (traversal-tag is convertible to random_access_traversal_tag)
return random_access_iterator_tag; return random_access_iterator_tag;
else if (traversal-tag is convertible to bidirectional_traversal_tag) else if (traversal-tag is convertible to bidirectional_traversal_tag)
return bidirectional_iterator_tag; return bidirectional_iterator_tag;
else if (traversal-tag is convertible to forward_traversal_tag) else if (traversal-tag is convertible to forward_traversal_tag)
return forward_iterator_tag; return forward_iterator_tag;
else if (traversal-tag is convertible to single_pass_traversal_tag)
if (access-tag is convertible to writable_iterator_tag)
return input_output_iterator_tag;
else
return input_iterator_tag;
else if (access-tag is convertible to writable_iterator_tag)
return output_iterator_tag;
else else
return null_category_tag; return null_category_tag;
} else if (access-tag is convertible to readable_writable_iterator_tag } else if (access-tag is convertible to readable_writable_iterator_tag