Reference C Library IOstream Library Strings library STL Containers STL Algorithms Miscellaneous Miscellaneous complex exception functional iterator limits locale memory new numeric stdexcept typeinfo utility valarray iterator advance back_inserter distance front_inserter inserter iterator iterator_traits iterator categories: BidirectionalIterator ForwardIterator InputIterator OutputIterator RandomAccessIterator predefined iterators: back_insert_iterator front_insert_iterator insert_iterator istreambuf_iterator istream_iterator ostreambuf_iterator ostream_iterator reverse_iterator

ForwardIterator <iterator> Forward iterator category RandomAccess Bidirectional Forward Input Output Forward iterators are iterators especially designed for sequential access, where the algorithm passes through all the elements in the range from the beginning to the end. They have the following characteristics: characteristic valid expressions Can be default-constructed X a; X() Can be copied and copy-constructed X b(a); b = a; Accepts equality/inequality comparisons. Equal iterators imply the same element is pointed a == b a != b Can be dereferenced (when not null) *a a->m Can be incremented (when not null) ++a a++ *a++ Where X is an iterator type, and a and b are objects of this iterator type. These characteristics are the same of bidirectional iterators, except that forward iterators only support increment and not decrement. See also InputIterator Input iterator category OutputIterator Output iterator category BidirectionalIterator Bidirectional iterator category RandomAccessIterator Random-access iterator category iterator Iterator definitions (header)

Home page | Privacy policy
© cplusplus.com, 2000-2011 - All rights reserved - v2.9
Spotted an error? contact us