|bool empty() const||
|size_type size() const||
Returns: Number of items in *this.
Though the current implementation takes time O(1), possible future implementations might take time O(P), where P is the number of hardware threads.
|size_type max_size() const||
Returns: Upper bound on number of items that *this can hold.
The upper bound may be much higher than what the container can actually hold.
The following table provides additional information on the members of this template class.
For more complete information about compiler optimizations, see our Optimization Notice.