非指针类型的C ++向量会导致iOS中的内存泄漏吗? [英] Can a C++ vector of non-pointer types cause a memory leak in iOS?

问题描述

代码如下:

@interface myClass {
  std::vector<float> myVector 
}
@end

根据仪器泄漏.这是堆栈跟踪:

It's leaking according to instruments. Here's the stack trace:

1 libstdc++.6.dylib operator new(unsigned long)  
2 __gnu_cxx::new_allocator<float>::allocate(unsigned long, void const*)  
3 std::_Vector_base<float, std::allocator<float> >::_M_allocate(unsigned long)

我猜我应该在堆上分配向量，但是我仍然不明白为什么会发生这种情况.我也可能无法正确地取消分配该类.

I'm guessing I should be allocating the vector on the heap, but I still don't understand why this occurs. It's also possible I'm failing to dealloc the class properly.

推荐答案

检查是否调用了您的类的dealloc.在这种情况下，这似乎是一种可以称为泄漏的方法.还有一个问题:为什么不使用本机的Objective-C容器?您很需要将浮点数存储在NSNumbers中，但是您将能够对所有实例使用标准的保留/释放内存管理模型.

Check if your class's dealloc is called. It seems to be the one way that can call leak in this case. And just one question: why don't you use native objective-c containers? You well need to store your floats in NSNumbers, but you will be able to use standard retain/release memory management model for all of your instances.

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