内存泄漏在哪里 [英] where is the memory leak

问题描述

我有一行代码:

CGFloat *components = CGColorGetComponents([color CGColor]);

并且分析仪说这里有泄漏. 我尝试了free(components)，但是当我这样做时应用程序崩溃了. 因为我没有分配任何东西，这里真的有泄漏吗?我知道CGColorGetComponents返回一个由3个CGFloat组成的数组，但是当我尝试释放它们时会崩溃.

and the analyzer is saying that there is a leak here. I tried free(components) but the app crashes when I do that. Is there really a leak here since I didnt allocate anything. I know that CGColorGetComponents returns an array of 3 CGFloat's but when I try to free them it crashes.

感谢您的帮助.

推荐答案

请参见 SO#792119 .

声明变量不会创建数组.实际上，CGColorGetComponents都没有.不管创建CGColor对象是什么，它都会创建数组并将其存储在对象中. CGColorGetComponents使您可以找到该存储的指针.

Declaring the variable does not create the array. In fact, neither does CGColorGetComponents. Whatever created the CGColor object created the array and stored it inside the object; CGColorGetComponents lets you have the pointer to that storage.

简而言之，不要释放指针.

In short, do not free your pointer.

但是，您可以将其设置为NULL.

You could, however, set it to NULL.

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