iOS Objec-C 错误：未分配正在释放的对象指针
我在 xcode 中收到以下错误。
对象 0x4e18d00 的错误：未分配被释放的指针 ** 在 malloc_error_break 中设置断点进行调试
我已在目标中设置 NSZombieEnabled，以便可以查看调用。它是
-[___NSArrayI release]
看起来我已经在代码中的其他地方释放了一些数组，然后自动释放池在它已经被释放时也尝试释放它。
我怎样才能找到哪里？有什么想法吗？
仅供参考，我使用 arrayWithCapacity 方法或类似方法创建所有数组，切勿使用 alloc 或 init 方法。我没有看到我在任何地方释放这些相同的数组。 （也许我是瞎子！！）
另外，控制流程如下：我单击一个UIButton，触发附加到onclick的函数。这将进入各个逻辑层，然后返回一个 NSArray。然后我可以在“onClick 按钮函数”中迭代该数组并打印内容。 当这个“onClick 按钮函数”退出时，我在“main”方法中收到上述错误。
另一个注意事项是，在一个函数中，我创建了一个 NSMutableArray，但想要返回一个 NSArray，因此我使用了 [[mutableArray copy] autorelease]。这样可以吧？
任何建议将不胜感激，因为我经常很难尝试追踪错误的原因。
提前致谢。
I'm getting the following error in xcode.
error for object 0x4e18d00: pointer being freed was not allocated ** set a breakpoint in malloc_error_break to debug
I've setup NSZombieEnabled in the target so I can view the call. It is
-[___NSArrayI release]
It looks like i've released some array somewhere else in my code and then the auto release pool is trying to release it also when it is already dealloc'd.
How can I find out where? Any idea?
FYI, I'm creating all my arrays using the arrayWithCapacity method or something similar, never use alloc or init methods. I don't see, anywhere where I am releasing those same arrays. (maybe i'm blind!!)
Also, the control flow is as follows: I click an UIButton, fire the function attached to onclick. This will go to various logic layers and then get an NSArray back. I can then iterate this array in the "onClick button function" and print the contents.
When this "onClick button function" quits I get the above error in the "main" method.
Another note is that in one function I create an NSMutableArray but want to return an NSArray so I use [[mutableArray copy] autorelease]. This ok, right?
Any advice would be greatly appreciated as I often have great difficulty in trying to track the cause for errors down.
Thanks in advance.
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评论（2）
我发现出了什么问题。
在书本类中，我将章节声明为 NSAray，在默认构造函数中，我说
我将其从构造函数中取出，一切都很好。
谢谢你们的帮助。
PS 如果我忘记了，有人可以将此标记为已接受的答案吗？干杯；）
I figured out what was wrong..
In book class I had chapters declared as an NSAray and in the default constructor I said
I took that out of the constructor and all is well.
Thanks for your help guys.
P.S. If I forget can somebody please mark this as the accepted answer? Cheers ;)
当您的应用程序崩溃时，您可以查看应用程序在哪一行崩溃，还可以查看崩溃发生之前调用的函数序列。我认为这条线导致崩溃[[mutableArray copy] autorelease]。因为你没有保留它。 copy 返回一个自动释放的对象。您可以在文档中看到该函数返回的内容。在 Objective-C 中通常返回一个自动释放的对象。
When your app crashes you can see at which line your app crashed and you can also see sequence of functions called before crash happen. I think this line is causing crash [[mutableArray copy] autorelease]. because you are not retaining it. copy returns an autoreleased object. You can see in documentation that what the function is returning. In objective-c normally returns an autoreleased object.