Size and Capacity

The following table provides additional information on the members of this template class.
Member Description
bool empty() const

Returns: size()!=0.

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.

For more complete information about compiler optimizations, see our Optimization Notice.