May 2012
Intermediate to advanced
679 pages
16h 56m
English
Content preview from Object Oriented Programming with C++, Second Edition
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19.5 ITERATORS
Just as array is referenced with index, a container class defines a specific class object called iterator. It is something like an index or a pointer. It helps us in referring elements of a different container class with uniform interface. If the container is empty, iterator may show us that too!
Depending the type and nature of container, iterator will have different access-related properties. Some of them are listed below.
- Forward
- Bi-directional
- Random access
- Input
- Output
Experts recommend that one should study iterators seriously, as they are fundamental to everything else in standard template library.
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