std::map<Key,T,Compare,Allocator>::clear

From cppreference.com
< cpp‎ | container‎ | map

void clear();
(until C++11)
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.



See also

erases elements
(public member function)