| Defined in header <iterator> | ||
|---|---|---|
template<
class Category,
class T,
class Distance = std::ptrdiff_t,
class Pointer = T*,
class Reference = T&
> struct iterator; |
std::iterator is the base class provided to simplify definitions of the required types for iterators.
Template parameters
| Category | - | the category of the iterator. Must be one of iterator category tags. |
| T | - | the type of the values that can be obtained by dereferencing the iterator. This type should be void for output iterators. |
| Distance | - | a type that can be used to identify distance between iterators |
| Pointer | - | defines a pointer to the type iterated over (T) |
| Reference | - | defines a reference to the type iterated over (T) |
Member types
| Member type | Definition |
|---|---|
value_type | T |
difference_type | Distance |
pointer | Pointer |
reference | Reference |
iterator_category | Category |
See also
| provides uniform interface to the properties of an iterator (class template) | |
| empty class types used to indicate iterator categories (class) |
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