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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. Any past-the-end iterators are also invalidated.  

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

[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.

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

[edit] See also

erases elements
(public member function) [edit]