Cocoa Memory Management NSArray with Objects

Question

I\'m having troubles releasing objects.. To explain it better I have included my code below.

NSTask *task = [NSTask new];
NSTask *grep = [NSTask new]; 
NSPipe *p         


        

Answer 1

substringToIndex: returns an autoreleased string, so there's no need to release it.

The only memory leak I see is where you set up your 'pipe' var a second time (for the task's standard output) without first releasing its current value (the NSPipe instance used for standard error & input).

Mutable collections like NSMutableArray will retain the objects they contain (as do all mutable/nonmutable collections) then release them when they're removed (or when the collection itself is deallocated).