void clear() noexcept;
Erases all elements from the container. After this call, size() returns zero.
Invalidates any references, pointers, or iterators referring to contained elements. Any past-the-end iterator remains valid.
 Return value
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.
|DR||Applied to||Behavior as published||Correct behavior|
|LWG 2231||C++11||complexity guarantee was mistakenly omitted in C++11||complexity reaffirmed as linear|
 See also
| erases elements |
(public member function)