New Members None.
See also iterator_category, Iterator Tags, iterator_traits, output_iterator_tag, input_iterator_tag, bidirectional_iterator_tag, random_access_iterator_tag
bidirectional_iterator_tag
Category: iterators
Component type: type
Description Bidirectional_iterator_tag is an empty class: it has no member functions, member variables, or nested types. It is used solely as a 'tag': a representation of the Bidirectional Iterator concept within the C++ type system. Specifically, it is used as a return value for the function iterator_category. Iterator_category takes a single argument, an iterator, and returns an object whose type depends on the iterator's category. Iterator_category's return value is of type bidirectional_iterator_tag if its argument is a Bidirectional Iterator.
Example See iterator_category
Definition Defined in the standard header iterator, and in the nonstandard backward-compatibility header iterator.h.
Template parameters None.
Model of Assignable
Type requirements None.
Public base classes None.
Members None.
New Members None.
See also iterator_category, Iterator Tags, iterator_traits, output_iterator_tag, input_iterator_tag, forward_iterator_tag random_access_iterator_tag
random_access_iterator_tag
Category: iterators
Component type: type
Description Random_access_iterator_tag is an empty class: it has no member functions, member variables, or nested types. It is used solely as a 'tag': a representation of the Random Access Iterator concept within the C++ type system. Specifically, it is used as a return value for the function iterator_category. Iterator_category takes a single argument, an iterator, and returns an object whose type depends on the iterator's category. Iterator_category 's return value is of type random_access_iterator_tag if its argument is a Random Access Iterator.
Example See iterator_category.
Definition Defined in the standard header iterator, and in the nonstandard backward-compatibility header iterator.h.
Template parameters None.
Model of Assignable.
Type requirements None.
Public base classes None.
Members None.
New Members None.
See also iterator_category, Iterator Tags, iterator_traits, output_iterator_tag, input_iterator_tag, forward_iterator_tag, bidirectional_iterator_tag
input_iterator<T, Distance>
Category: iterators
Component type: type
Description Input_iterator is an iterator base class: it is intended that an iterator that is a model of Input Iterator, and whose value type and distance type are T and Distance, may be defined by inheriting from input_iterator<T, Distance> [1]. Input_iterator is entirely empty: it has no member functions, member variables, or nested types. It exists solely to simplify the definition of the functions iterator_category, distance_type, and value_type.
Example
