The hash_map is a container that holds an unordered set of key-value pairs, and no two keys in the container can compare equal.
hash_multimap permits duplicate entries. Also see the General Hash Issues Introduction.
This header contains two classes:
hash_map
hash_multimap
Note: This header is non-standard. The classes herein are offered as extensions to the C++ standard. They are marked as such by the namespace Metrowerks.