Standard C++ Library Class Reference

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Input Iterators
Iterator
Summary
A read-only, forward moving iterator.
Contents
Description●
Key to Iterator Requirements●
Requirements for Input Iterators●
See Also●
Description
For a complete discussion of iterators, see the Iterators section of this reference.
Iterators are a generalization of pointers that allow a C++ program to uniformly interact
with different data structures. Input iterators are read-only, forward moving iterators
that satisfy the requirements listed below.
Key to Iterator Requirements
The following key pertains to the iterator requirement descriptions listed below:
a and b values of type X
n value of distance type
u, Distance, tmp and m identifiers