Namespaces
Variants
Views
Actions

std::vector::clear

From cppreference.com
< cpp‎ | container‎ | vector
Revision as of 17:48, 2 November 2012 by P12bot (Talk | contribs)

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 (note: the standard's restriction on the changes to capacity is in the specification of vector::reserve, see [1])

Contents

Parameters

(none)

Return value

(none)

Exceptions

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

Complexity

Linear in the size of the container.

Defect reports

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) [edit]