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std::vector::clear

From cppreference.com
< 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.

Contents

[edit] Parameters

(none)

[edit] Return value

(none)

[edit] Exceptions

(none) (until C++11)
noexcept specification:  
noexcept
  
(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)
clear has linear complexity for sequence containers. (since C++14)

[edit] See also

erases elements
(public member function) [edit]