concurrent_unordered_set::count Method
Counts the number of elements matching a specified key. This function is concurrency safe.
size_type count(
const key_type& _Keyval
) const;
Parameters
- _Keyval
The key to search for.
Return Value
The number of times number of times the key appears in the container.
Requirements
Header: internal_concurrent_hash.h
Namespace: concurrency