C++ How do I release references?

Development Programming & Scripting C++
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1

I am
Setting the define of an actor on spawning. When it spawns is sets a reference to itself to controllers in the area.

How do I set its reference to null in the controllers? Do I do that in a destructor? Is there something else that is called when setlifetime() s time is up? Is there a way to set a weak pointer that will clean itself?

Right now the pointer is still left after the object is gone, it’s not null but is not valid but I don’t k ow how I should be testing it.

2

The reference will be set to NULL eventually, when Garbage Collection runs. You can find out if it is awaiting collection by using IsPendingKill. We also have a TWeakObjectPtr you can use, which makes this a bit cleaner, but will not prevent non-Actors from being garbage collected. It’s a good thing to use for an ‘observer’, which it sounds like is your case.