Size and capacity¶
empty¶
bool empty() const;Returns:
true
if the container is empty;false
, otherwise.The result may differ from the actual container state in case of pending concurrent insertions.
size¶
size_type size() const;Returns: the number of elements in the container.
The result may differ from the actual container size in case of pending concurrent insertions.
max_size¶
size_type max_size() const;Returns: the maximum number of elements that container can hold.