Recursive Blocks in Objective-C leaking in ARC

Question

So I\'m using recursive blocks. I understand that for a block to be recursive it needs to be preceded by the __block keyword, and it must be copied so it can be put on the

Answer 1

Ok, I found the answer on my own...but thanks to those who tried to help.

If you're referencing/using other blocks in a recursive block, you must pass them in as weak variables. Of course, __weak only applies to block pointer types, so you must typedef them first. Here's the final solution:

    typedef void (^IntBlock)(int);

    IntBlock __weak Log = ^(int i){
        NSLog(@"log sub %i", i);
    };

    __block void (^LeakingBlock)(int) = ^(int i){
        Log(i);
        if (i < 100) LeakingBlock(++i);
    };
    LeakingBlock(1);

The above code doesn't leak.