EXPLORATION 44
Iterators
Iterators provide element-by-element access to a sequence of things. The things can be numbers, characters, or objects of almost any type. The standard containers, such as vector, provide iterator access to the container contents, and other standard iterators let you access input streams and output streams, for example. The standard algorithms require iterators for operating on sequences of things.
Until now, your view and use of iterators has been somewhat limited. Sure, you’ve used them, but do you really understand them? This Exploration helps you understand what’s really going on with iterators.
Kinds of Iterators ...
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