如何破坏数组 [英] how to destruct an array

问题描述

#include <cstdlib>
#include <iostream>

using namespace std;

const unsigned long MAX_SIZE = 20;
typedef int ItemType;

class Heap {
private:
        ItemType array[MAX_SIZE];
        int elements; //how many elements are in the heap
public:
      Heap( )
       ~Heap( )
       bool IsEmpty( ) const
      bool IsFull( ) const
      Itemtype Retrieve( ) 
      void Insert( const Itemtype& )
};

假设我有这个头文件。在我的实现中，这是什么是做Heap（）构造函数和〜Heap（）析构函数的最好方法。

Let's say I have this as my header file. In my implementation for this, what is the best way to do Heap() constructor and ~Heap() destructor.

我有

Heap::Heap()
{
   elements = 0;
}

Heap::~Heap()
{
   array = NULL;
}

我想知道这是否是正确的方法来销毁和构造数组这种情况。

I am wondering if this is the proper way to destruct and construct an array in this case.

推荐答案

数组不是动态分配，因为当对象不再存在于范围内时它会消失。实际上，您不能重新分配数组;这是一个错误。

array is not dynamically allocated, so the storage for it goes away when the object no longer exists in scope. In fact, you can't reassign to array; it's an error to do so.

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