std::set::count

 

C++

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Observers

set::key_comp

set::value_comp

 

size_type count( const Key& key ) const;

Returns the number of elements with key key.

Parameters

key

-

key value of the elements to count

Return value

Number of elements with key key

Complexity

Logarithmic in the size of the container plus linear in the number of the elements found.

See also

find	finds element with specific key (public member function)
equal_range	returns range of elements matching a specific key (public member function)