concurrent_unordered_multiset::count Method
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concurrent_unordered_multiset::count Method


Counts the number of elements matching a specified key. This function is concurrency safe.

size_type count(
   const key_type& _Keyval
) const;


The key to search for.

The number of times number of times the key appears in the container.


Header: internal_concurrent_hash.h

Namespace: concurrency

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