The whole point is that it's much easier to NOT forget defer (which goes right after the resource acquisition line), than to forget to free the resource (which happens much further down the function).
So it's immediately better compared to the current C situation.
As for compared to RAII? Well, thats one failure mode for defer (forgetting it), whereas there are dozens of ways to mess RAII...
So it's immediately better compared to the current C situation.
As for compared to RAII? Well, thats one failure mode for defer (forgetting it), whereas there are dozens of ways to mess RAII...