ios - Why retainCount returns 2 -

ios - Why retainCount returns 2 -

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when utilize -retaincount? 10 answers why retain count in negative value? [duplicate] 1 reply

i have property:

@property(nonatomic, retain) nsmutablearray *myvar;

first case:

myvar = [[nsmutablearray alloc] init]; nslog(@retaincount: %i:", [myvar retaincount]);

outputs:

retaincount: 1

second case:

self.myvar = [[nsmutablearray alloc] init]; nslog(@retaincount: %i:", [self.myvar retaincount]);

outputs:

retaincount: 2

my question is: why in sec case retain value 2 ?

+1 because alloc/init'd it +1 because self.myvar retains (as set out in property declaration)

if autorelease after alloc/init, go downwards 1... if set self.myvar nil, nail 0 (if nil else has retained in meantime)

but vikingosegundo has said, don't want messing retain counts. os determines when knock them down, can't utilize them reliable measure of state.

ios objective-c cocoa-touch memory-management memory-leaks