Move assignment has nothing to do with 'clearing fields' or whatever it's that the moved-to value steals what it can and leaves the moved from value in a valid but unspecified state. Notably, you should still be able to
assign-to and destroy a moved-from value.
It's an invariant of the 'DirectorySearchResult' class that query is non-null, as the destructor deletes it without checking it for nullity. The most straight-forward and efficient way to achieve both the stealing and the valid state is to swap the pointers.
It's an invariant of the 'DirectorySearchResult' class that query is non-null, as the destructor deletes it without checking it for nullity. The most straight-forward and efficient way to achieve both the stealing and the valid state is to swap the pointers.