Question

I have a method that accepts three NSMutableArrays, one as Input and two as output using pointer to a pointer.

Now I am creating the two arrays inside the method.

So the memory allocation is done inside the method therefore it should be method’s responsibility to release the memory.

So should I call autorelease on the objects before assigning them to these output references ?

Answer 1

You can autorelease them. But make sure that, after the method call, you call retain on both the output pointers. Release them once you are done with them

NSMutableArrays *arr1, arr2, arr3;
[self methodOne:arr1 two:*arr2 three:*arr3];
[arr2 retain];
[arr3 retain];