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concurrent_unordered_set::size Method

concurrent_unordered_set::size Method

Returns the number of elements in this concurrent container. This method is concurrency safe.

size_type size() const;

The number of items in the container.

In the presence of concurrent inserts, the number of elements in the concurrent container may change immediately after calling this function, before the return value is even read.

Header: internal_concurrent_hash.h

Namespace: concurrency

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