参考QStack，继承自Vector
类声明
cpp
template<typename T>
class Stack :protected Vector<T>
{
public:
explicit Stack()noexcept;
Stack(const Stack&t)noexcept;
Stack(Stack&&t)noexcept;
Stack& operator= (const Stack& t)noexcept;
Stack& operator= (Stack&& t)noexcept;
~Stack();
bool isEmpty()const noexcept;
uint size()const noexcept;
const T& top()const;
T& top();
Stack& push(const T& t)noexcept;
T pop();
void clear()noexcept;
T& operator[](uint pos);
private:
int m_top;
};类实现
cpp
template<typename T>
MContainer::Stack<T>::Stack() noexcept
:Vector<T>(10)
{
m_top = m_npos;
}
template<typename T>
MContainer::Stack<T>::Stack(const Stack&t) noexcept
:Vector<T>(t)
{
m_top = t.m_top;
}
template<typename T>
MContainer::Stack<T>::Stack(Stack&&t) noexcept
:Vector<T>(t)
{
m_top = t.m_top;
}
template<typename T>
Stack<T>& MContainer::Stack<T>::operator=(const Stack& t) noexcept
{
if (this == &t)
return *this;
Vector<T>operator=(t);
m_top = t.m_top;
}
template<typename T>
Stack<T>& MContainer::Stack<T>::operator=(Stack&& t) noexcept
{
if (this == &t)
return *this;
Vector<T>operator=(std::move(t));
m_top = t.m_top;
}
template<typename T>
MContainer::Stack<T>::~Stack()
{
}
template<typename T>
inline bool Stack<T>::isEmpty() const noexcept
{
return m_top == m_npos;
}
template<typename T>
uint MContainer::Stack<T>::size() const noexcept
{
return m_top;
}
template<typename T>
const T& MContainer::Stack<T>::top() const
{
return last();
}
template<typename T>
T& MContainer::Stack<T>::top()
{
return last();
}
template<typename T>
Stack<T>& MContainer::Stack<T>::push(const T& t) noexcept
{
append(t);
m_top++;
return *this;
}
template<typename T>
T MContainer::Stack<T>::pop()
{
T t = last();
removeAt(m_top);
m_top--;
return t;
}
template<typename T>
inline void Stack<T>::clear() noexcept
{
Vector<T>::clear();
m_top = m_npos;
}
template<typename T>
T& MContainer::Stack<T>::operator[](uint pos)
{
return Vector<T>::operator[](pos);
}