c++ - 类模板的问题

Question

我有作业要做，但我对类模板不是很熟悉。

任务是:

There's a major problem in the implementation of the following class. Can you spot it? How can you fix the problem? You can propose more than one solution, depending on the requirement specifications of the class.

    template <class T>
class Array
{
private:
    T *m_pData;
    unsigned int m_nSize;

public:
  Array(unsigned int nSize) : m_nSize(nSize)
  {
    if(m_nSize > 0)
      m_pData = new T[m_nSize];
  }

virtual ~Array()
  {
    if(m_pData != NULL)
      delete m_pData;
  }
bool Set(unsigned int nPos, const T& Value)
  {
    if(nPos < m_nSize)
    {
      m_pData[nPos] = Value;
      return true;
    }
    else
      return false;
  }

  T Get(unsigned int nPos)
  {
    if(nPos < m_nSize)
      return m_pData[nPos];
    else
      return T();
  }
};

据我所知，存在内存泄漏。你发现其他问题了吗？提示比准确的答案更受欢迎；)

Answer 1

1. 构造函数-当nSize为0时需要设置m_pData的值
2. 您可以删除空指针，因此析构函数中不需要 if 语句。删除应该是delete[]