iterator_traits

Class Name            iterator_traits     

Header File          <iterator>

Classification      abstract data type

Class Relationship Diagram



Class Description

Member Classes

None

Types

Iterator::difference_type difference_type

Iterator::value_type value_type

Iterator::pointer pointer

Iterator::reference reference

Iterator::iterator_category iterator_category

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Class Description

The iterator_traits template class describes the types associated with an iterator. They are described as type definitions. There is a iterator_traits defined for every iterator type. If there is to be a new iterator type to be defined and the d
efault type definitions are not adequate, a new iterator_traits<Iterator> is implicitly generated.

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Iterator::difference_type difference_type

difference_type is of type Distance used to represent the difference between two iterators.

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Iterator::value_type value_type

value_type is of type T, a class of objects that the iterator is pointing,

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Iterator::pointer pointer

pointer has a default Pointer to type T.

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Iterator::reference reference

reference has a default Reference to type T.

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Iterator::iterator_category iterator_category

The iterator type defined by an iterator tag of the most specific iterator behavior. These are the five iterator tags which
represent the five types of iterators:

                   input_iterator_tag

                   output_iterator_tag

                   forward_iterator_tag

                   bidirectional_iterator_tag

                   random_access_iterator_tag

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The Class Relationship Diagram for iterator_traits

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