map::key_type

A type that describes the sort key object that constitutes each element of the map.

typedef Key key_type;

Remarks

key_type is a synonym for the template parameter Key.

For more information on Key, see the Remarks section of the map Class topic.

Example

See example for value_type for an example of how to declare and use key_type.

Requirements

Header: <map>

Namespace: std

See Also

Concepts

map Class

map Members

Standard Template Library