std::vector::clear

 

C++

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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.

Parameters

(none)

Return value

(none)

Exceptions

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

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)

See also

erase

erases elements (public member function)