< cpp‎ | container‎ | vector

void clear();

Removes all elements from the container.

Invalidates any references, pointers, or iterators referring to contained elements. May invalidate any past-the-end iterators.  

Leaves the capacity() of the vector unchanged.


[edit] Parameters


[edit] Return value


[edit] Exceptions

(none) (until C++11)
noexcept specification:  
(since C++11)

[edit] Complexity

Linear in the size of the container.
clear is defined in terms of erase, which has linear complexity. (until C++11)
complexity of clear is omitted (since C++11)
(until C++14)
clear has linear complexity for sequence containers. (since C++14)

[edit] See also

erases elements
(public member function)