Do local array variables leak memory?

Does anyone know if local arrays of primitive types (integers, booleans) are deallocated when a function returns?

I doubt they would need to be, but they don't leak.

Narwanza, if the arrays aren't de-allocated....then they most likely leak. It's as simple as that.

I'll do tests on this when I come home and write my results here. I do doubt that it leaks, as wc3's array system is dynamic and very smart. Each Array is only like 23 kbytes or sumtin If I remember right from some tests AIAndy (if I remember right) made.

Cubasis

Ok - CONFIRMED

I ran a function that put a integer into element: 0, 1000, 2000, 3000, 4000 and 5000 (for fun) - 928000 times... That is, I created 928000 arrays, and it didn't leak a single thing (all memory-usage difference was way between margin of error (85.628 kb before, 86.027 kb after) which likely came from me typing a chat string, starting a event and/or some trigger-execution/reference count changing.

So no, local arrays don't leak.

Cubasis

23 kbyte hmm. That's exactly 8192 times 4 :)

I was refering to the types he was using as examples, booleans and integer. Now location array may have leaked, or just a plain array may have leaked, but i was reffering to booleans and integers.

Hmm, Simple-type arrays are no different from handle-type arrays. Handles are just 32 bit integers, just like the integers, reals and booleans. Thus we talk about "all" types being a integer. So while the simple types use this 32-bit integer to store their value. Handle types use this 32-bit integer as a address to their entry in handle-array. And the string type uses this 32-bit integer as a index to a string-array. So again, there is no difference between a simple-type array and a handle array. They are both just something that keeps track of up to 8192 other normal variables.

Cubasis

'Course, I'd say that if you declared a local trigger array, say, you will need to call DestroyTrigger() on anything you don't need afterwards.

I would asume that local handle arrays still need to be set to null right?

Alfryd: That's what I ment with this


So as Arrays are just comparable to 8192 normal variables, they thus indeed need to get de-referenced like other local variables. But ofcourse only the elements you actually used/set-to-a-handle.

And thus, yes to Lord Vexorian too.

Cubasis