Concept BidirectionalIteratorconcept BidirectionalIterator<typename X> : ForwardIterator {
typename postdecrement_result;
requires Dereferenceable,
Convertible<Dereferenceable::reference,
value_type>,
Convertibleconst X&>;
Â
X& operator--(X&);
postdecrement_result operator--(X&, int);
}; Where Defined#include <iterator> DescriptionBidirectional iterators allow algorithms to move iterators backward as well as forward.
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