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< h2 class = "title" > < a id = "dbset_iterators" > < / a > Chapter 17. Iterator Classes for db_set and db_multiset < / h2 >
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< p > < a class = "link" href = "db_set_base_iterator.html" title = "Chapter 18. Db_set_base_iterator" > db_set_base_iterator< / a >
and < a class = "link" href = "db_set_iterator.html" title = "Chapter 19. Db_set_iterator" > db_set_iterator< / a >
are the const iterator and iterator class for < a class = "link" href = "db_set.html" title = "Chapter 7. Db_set" > db_set< / a >
and < a class = "link" href = "db_multiset.html" title = "Chapter 8. Db_multiset" > db_multiset< / a >
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< p > They have identical behaviors to std::set::const_iterator and std::set::iterator respectively.< / p >
< p > The difference between the two classes is that the < a class = "link" href = "db_set_base_iterator.html" title = "Chapter 18. Db_set_base_iterator" > db_set_base_iterator< / a >
can only be used to read its referenced value, while < a class = "link" href = "db_set_iterator.html" title = "Chapter 19. Db_set_iterator" > db_set_iterator< / a >
allows both read and write access. If the access pattern is readonly, it is strongly recommended that you use the const iterator because it is faster and more efficient.< / p >
< p > The two classes inherit several functions from < a class = "link" href = "db_map_base_iterator.html" title = "Chapter 15. Db_map_base_iterator" > db_map_base_iterator< / a >
and < a class = "link" href = "db_map_iterator.html" title = "Chapter 16. Db_map_iterator" > db_map_iterator< / a >
respectively. < / p >
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See Also
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< p > < a class = "link" href = "db_map_base_iterator.html" title = "Chapter 15. Db_map_base_iterator" > db_map_base_iterator< / a >
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