|  | 
            Move-assign a ip::basic_resolver
            from another.
          
basic_resolver & operator=(
    basic_resolver && other);
This assignment operator moves a resolver from one object to another. Cancels any outstanding asynchronous operations associated with the target object.
                  The other ip::basic_resolver
                  object from which the move will occur.
                
            Following the move, the moved-from object is in the same state as if
            constructed using the basic_resolver(const executor_type&)
            constructor.