C++ In a Nutshell

Name

input_iterator_tag class — Tag for an input iterator

Synopsis

struct input_iterator_tag {};

Use the input_iterator_tag class as the iterator category when declaring a new input iterator class. When writing a generic algorithm or similar function, you can use the iterator’s category to write specialized implementations for different kinds of iterators. See Example 13-19 (under the distance function template).

See Also

bidirectional_iterator_tag class, forward_iterator_tag class, iterator class template, output_iterator_tag class, random_access_iterator_tag class