（iphone）循环参考是objectc中的问题吗？

Question

in class A,
i have B* b;
@property (assign) B* b;

and in class B
i have A* a;
@property (assign) A* a;

is this a problem in objectc?

Thank you

Answer 1

No problem with that.

Your objects will have 'weak references' to each other, so there is no memory management issue there.

You just have to make sure you don't access deleted memory. For instance in class A:

- (void)dealloc
{
    [b setA: nil];

    [super dealloc];
}