How to release the locally alloc init NSMutableArray and return its reference

Question

I have one function like this

    -(NSMutableArray *)getData
    {
       NSMutableArray *tempArr=[NSMutableArray alloc]init];
      // perform some operation on tempArr
      return tempArr;
    }

In above example i created new object for nsmutablearray and need to return its refernce. Now everything is working fine however when i run it with instruments (leaks) it shows 100 % memory leak at "NSMutableArray *tempArr=[NSMutableArray alloc]init];" this line.

what can be solution for this,please do write to this thread

Thnx in advce

Answer 1

I usually do this:

return [tempArr autorelease];

Consider switching to ARC.

Answer 2

For such cases you should use autorelease like this...

 -(NSMutableArray *)getData
    {
       NSMutableArray *tempArr=[[NSMutableArray alloc]init]autorelease];
      // perform some operation on tempArr
      return tempArr;
    }

hoping this helps.

Answer 3

You will have to release it on return, like so

 -(NSMutableArray *)getData
    {
       NSMutableArray *tempArr=[NSMutableArray alloc]init];
      // perform some operation on tempArr
      return [tempArr autorelease];
   }