std::vector<bool,Allocator>::flip
From cppreference.com
                    
                                        
                    < cpp | container | vector bool
                    
                                                            
                    | Defined in header  <vector> | ||
| void flip(); | ||
Toggles each bool in the vector (replaces with its opposite value).
Parameters
(none)
Return value
(none)
See also
| access  specified element (public member function of std::vector<T,Allocator>) | |
| toggles the values of bits (public member function of std::bitset<N>) |