NSString stringWithUTF8String 内存泄漏:启用 ARC [英] Memory leak in NSString stringWithUTF8String: with ARC enabled
问题描述
在我的应用程序中,我启用了 ARC.但是在我的应用程序中,以下几行根据仪器给了我内存泄漏.它在 ios 7.0 中.
In my application i have enabled the ARC. But in my application following lines gives me memory leaks according to instruments. It is in ios 7.0.
-(id)init{
variables = [[NSMutableArray alloc] init]; // Leak
events = [[NSMutableArray alloc] init]; //Leak
return self;
}
更新
但是在我的应用程序中,如果我执行以下操作,则不会显示任何泄漏.但我无法将项目添加到变量中.
Update
But in my app if i do something like below it does not show me any leak. But i can't add items in to the variables.
-(id)init{
variables = [[[NSMutableArray alloc] init] copy]; // No Leak
events = [[[NSMutableArray alloc] init] copy]; //No Leak
return self;
}
--
NSString *utfString =[NSString stringWithUTF8String:(const char *)attr->children->content];//Leak
--
-(NSObject*)createObjectForClass:(NSString*)className{
Class cls = NSClassFromString(className);
NSObject *object = [[cls alloc]init]; //Leak
if(cls != nil){
CFRelease((__bridge CFTypeRef)(cls));
}
return object;
}
有人知道如何解决这个问题吗?
Does anyone has any idea how to fix this?
推荐答案
我现在的猜测是你的整个对象都在泄漏,这意味着在 -init<中创建的
NSMutableArray
s/code> 也泄漏.调用 copy
的版本没有泄漏,因为副本可能返回 NSArray
的单例实例(因为其中有零个元素,而且它是一个不可变的 NSArray,可能是一个单例实例).
My guess right now is that your entire object is leaking, which means that the NSMutableArray
s created in -init
also leak. The version that calls copy
isn't leaking because the copy is probably returning a singleton instance of NSArray
(as there are zero elements in it, and it's an immutable NSArray, there's probably a singleton instance for that).
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