[vJASS] nulling struct members

[pks9067]

Do I have to null members of struct on destroy to prevent leaks?
just wondering because a lot of people do that

 

[WaterKnight]

Not really, these values are stored as global variables and the next instance with the same index may overwrite it, therefore freeing the previous value.

 

[Justify]

Somehow this is the truth and somehow not. It's true that globals don't need to be nulled if they get overwritten by new instances. The "if" is the problem. If you have sort of spikes of instances were suddenly many of them are created it can easily be that some struct members will never be nulled because this behaviour never happens again.
Nulling is realy not a big deal and if you want to be 100% sure do it.
However, not nulling is only relevant when the entire map leaks handle-indices.

 

[WaterKnight]

But then again, you can only have a certain amount of struct instances, so the maximum leak is limited unless you extend them, so they use hashtable instead of array.

 

[pks9067]

thanks for answers