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added input and output traversal tags

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[SVN r316]
This commit is contained in:
Jeremy Siek
2002-07-26 18:35:11 +00:00
parent abe42d2dd6
commit fec6f79912
1 changed files with 6 additions and 0 deletions
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6
doc/iterator-categories.html
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@@ -135,6 +135,8 @@ will need a category tag. <PRE>namespace std {
struct constant_lvalue_iterator_tag : public readable_iterator_tag { }; struct constant_lvalue_iterator_tag : public readable_iterator_tag { };
// Traversal Categories // Traversal Categories
struct input_traversal_tag { };
struct output_traversal_tag { };
struct forward_traversal_tag { }; struct forward_traversal_tag { };
struct bidirectional_traversal_tag : public forward_traversal_tag { }; struct bidirectional_traversal_tag : public forward_traversal_tag { };
struct random_access_traversal_tag : public bidirectional_traversal_tag { }; struct random_access_traversal_tag : public bidirectional_traversal_tag { };
@@ -203,6 +205,10 @@ for <TT>T*</TT> are provided. <PRE>namespace std {
typedef boost::bidirectional_traversal_tag type; typedef boost::bidirectional_traversal_tag type;
else if (Cat inherits from std::forward_iterator_tag) else if (Cat inherits from std::forward_iterator_tag)
typedef boost::forward_traversal_tag type; typedef boost::forward_traversal_tag type;
else if (Cat inherits from std::input_iterator_tag)
typedef boost::input_traversal_tag type;
else if (Cat inherits from std::output_iterator_tag)
typedef boost::output_traversal_tag type;
} }
}; };