std::unordered_map::count
From cppreference.com
< cpp | container | unordered map
| size_type count( const Key& key ) const; |
||
Returns the number of elements with key key.
Contents |
[edit] Parameters
| key | - | key value of the elements to count |
[edit] Return value
Number of elements with key key
[edit] Complexity
Amortized constant on average, worst case linear in the size of the container.
[edit] See also
| finds element with specific key (public member function) | |
| returns range of elements matching a specific key (public member function) | |
