我在学习 C++ 考试,有人问我在这段代码中,该类的 d'tor 是否应该使用 delete[] 而不是 delete:
template <class T>
class ClonePtr
{
private:
T* ptr;
public:
explicit ClonePtr(T* p = nullptr) : ptr(p) {}
~ClonePtr() { if(ptr!=nullptr) delete []ptr; }
ClonePtr(const ClonePtr& other) : ptr(nullptr)
{
*this = other;
}
ClonePtr(ClonePtr&& other) : ptr(other.ptr)
{
other.ptr = nullptr;
}
ClonePtr& operator=(const ClonePtr& other)
{
if (this != &other)
{
delete ptr;
if (other.ptr != nullptr)
ptr = other.ptr->clone();
}
return *this;
}
T& operator*() const { return *ptr; …Run Code Online (Sandbox Code Playgroud)