std::forward_list<T,Allocator>::clear (3) - Linux Manuals

std::forward_list<T,Allocator>::clear: std::forward_list<T,Allocator>::clear

NAME

std::forward_list<T,Allocator>::clear - std::forward_list<T,Allocator>::clear

Synopsis

void clear() noexcept; (since C++11)

Erases all elements from the container. After this call, size() returns zero.
Invalidates any references, pointers, or iterators referring to contained elements. Any past-the-end iterator remains valid.

Parameters

(none)

Return value

(none)

Complexity

Linear in the size of the container, i.e., the number of elements.

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