can you create memory leaks without using lists?

BlitzMax Forums/BlitzMax Programming/can you create memory leaks without using lists?

Najdorf

(Posted 2005) [#1]

I was wondering...

N	(Posted 2005) [#2]

If you want a memory leak, try this...

While True
   MemAlloc( 2 )
Wend

Najdorf

(Posted 2005) [#3]

I dont even know what that does

Amon_old

(Posted 2005) [#4]

lol

Perturbatio

(Posted 2005) [#5]

I dont even know what that does

it continuously allocates 2 bytes of memory each loop cycle until you cancel the program, but since the memory is not being freed (nor assigned to anything) it is in essence a memory leak.

Najdorf

(Posted 2005) [#6]

Ok, but I dont know how to use it anyway.

The question is more "if I dont use lists (arrays instead) and dont use "alloc", do I possibly risk memory leaks or I'm completely safe?"

N	(Posted 2005) [#7]

You're fine if the data is referenced 'normally'. I'd guess that means not by a pointer (other than Object).

Koriolis

(Posted 2005) [#8]

IMHO opinion the most insidious source of memory leaks in BlitzMax is when you happen to create circular references. The simplest example of it being:

Type SomeType
    Field bla:SomeType
End Type
Repeat
    t:SomeType = New SomeType
    t.bla = t
    FlushMem
Forever

Here you get a memory leak because none of the created objects will ever be released, even though you call FlushMem continously and the objects are not referenced anymore.
At least, this is documented.