Question

What is the proper way to release an array that you created with copy? I have a function createDoc that takes an NSMutableArray as an argument. I get a memory leak because I believe copy allocates memory.

doc = [getDoc createDoc: [[array subarrayWithRange:NSMakeRange(2, 5)] copy] ];

Answer 1

Try this

doc = [getDoc createDoc: [[[array subarrayWithRange:NSMakeRange(2, 5)] copy] autorelease]];

or even better this

NSArray *subArray = [[array subarrayWithRange:NSMakeRange(2, 5)] copy]];
doc = [getDoc createDoc:subArray];
[subArray release];