On Wednesday, 20 December 2023 at 02:56:24 UTC, Steven
Schveighoffer wrote:
Instead you are trying to reassign the `this` reference, which
is a local (and also forbidden). Think about it a second, your
`this + rhs` is going to allocate a *new* object. Then if the
assignment to the local `this` parameter succeeded, what
happens outside the member function? The true reference that is
calling this will not be updated!
The only way to do this I can see is to reimplement for op=, or
maybe perform the operation and swap the guts out.
-Steve
Thank you for such a detailed explanation! That does make sense.
