void clear() noexcept;
|| (since C++11)
Removes all elements from the container.
Invalidates any references, pointers, or iterators referring to contained elements. May also invalidate past-the-end iterators.
Linear in the size of the container, i.e., the number of elements.
The following behavior-changing defect reports were applied retroactively to previously published C++ standards.
|| Applied to
|| Behavior as published
|| Correct behavior
| LWG 2550
|| for unordered associative containers, unclear if complexity is linear in the number of elements or buckets
|| clarified that it's linear in the number of elements
|| erases elements |
(public member function)