objective-c - 来自 Clang 的 "Leak of returned object"是什么意思？

Question

进一步this question我在 BEncoding.m 中修复了一堆内存泄漏(最初来自 here )

我已经修复了所有明显的内存泄漏，但 Clang 发现了四个“返回对象泄漏”错误，我不确定如何排序:

完整的消息/适当的代码位是:

NSMutableData *data = [[NSMutableData alloc] init];

[1] Method returns an Objective-C object with a +1 retain count (owning reference)

[...]
snprintf(buffer, 32, "%lu:", [object length]);
[data appendBytes:buffer length:strlen(buffer)];
[data appendData:object];
return data;

[3] Object returned to caller as an owning reference (single retain count transferred to caller)

Answer 1

你想要:

返回[数据自动释放]；

因为您将其交给调用者。