c++安全的释放指针

template <class T>
inline  void SafeDelete(T*& pVal)
{
	if (pVal != NULL)
	{
		delete pVal;  
		pVal = NULL;
	}
}  

template <class T>
inline  void SafeDeleteArray(T*& pVal)
{
	if (pVal != NULL)
	{
		delete[] pVal;  
		pVal = NULL;
	}
}