C++详解实现Stack方法

template<class T, class Con = deque<T>>
    class stack
    {
    public:
        stack();
        void push(const T& x)
        {
            _c.push_back(x);
        }
        void pop()
        {
            _c.pop_back();
        }
        T& top()
        {
            return _c.back()
        }
        const T& top()const
        {
            return _c.back();
        }
        size_t size()const
        {
            return _c.size();
        }
        bool empty()const
        {
            return _c.empty();
        }
    private:
        Con _c;
    };
​

#pragma once
#define MAX_SIZE 1024
#define TRUE 1
#define FALSE 0
typedef struct SEQSTACK {
	void *data[MAX_SIZE];
	int size;
}SeqStack;
class MySeqStack
{
public:
	MySeqStack();
	~MySeqStack();
	void init();
	void pushStack(void *data);
	void * getTopStack();
	void popStack();
	int isEmpty();
	int getSizeStack();
	void clearStack();
private:
	SeqStack *m_stack;
};

#include "SeqStack.h"
#include <iostream>
using namespace std;
MySeqStack::MySeqStack()
{
}
MySeqStack::~MySeqStack()
{
	if (m_stack != nullptr) 
	{
		delete m_stack;
		m_stack = nullptr;
	}
}
void MySeqStack::init()
{
	m_stack = new SeqStack;
	if (m_stack == nullptr) 
	{
		cout << "分配内存为空" << endl;
	}
	else 
	{
		m_stack->size = 0;
		for (int i = 0; i < m_stack->size; ++i) 
		{
			m_stack->data[i] = nullptr;
		}
	}
}
void MySeqStack::pushStack(void * data)
{
	if (m_stack->size == MAX_SIZE)
	{
		return;
	}
	if (m_stack == nullptr)
	{
		return;
	}
	if (data == nullptr) 
	{
		return;
	}
	m_stack->data[m_stack->size] = data;
	m_stack->size++;
}
void * MySeqStack::getTopStack()
{
	if (m_stack == nullptr)
	{
		return nullptr;
	}
	if (m_stack->size == 0)
	{
		return nullptr;
	}
	return m_stack->data[m_stack->size-1];
}
void MySeqStack::popStack()
{
	if (m_stack == nullptr)
	{
		return ;
	}
	if (m_stack->size == 0)
	{
		return ;
	}
	m_stack->data[m_stack->size - 1] = nullptr;
	m_stack->size--;
}
int MySeqStack::isEmpty()
{
	if (m_stack == nullptr)
	{
		return -1;
	}
	if (m_stack->size == 0) 
	{
		return TRUE;
	}
	return FALSE;
}
int MySeqStack::getSizeStack()
{
	return m_stack->size;
}
void MySeqStack::clearStack()
{
	if (m_stack == nullptr)
	{
		return ;
	}
	for (int i = 0; i < m_stack->size; ++i)
	{
		m_stack->data[i] = nullptr;
	}
	m_stack->size = 0;
}

#include <iostream>
#include "SeqStack.h"
using namespace std;
typedef struct PERSON {
	char name[64];
	int age;
	int score;
}Person;
void test() 
{
	MySeqStack *stack = new MySeqStack;
	stack->init();
	Person p1 = { "hudf",3,56 };
	Person p2 = { "akso",4,67 };
	Person p3 = {"及家属的",6,88};
	Person p4 = { "口袋",7,98 };
	Person p5 = { "husdh",8,34 };
	stack->pushStack(&p1);
	stack->pushStack(&p2);
	stack->pushStack(&p3);
	stack->pushStack(&p4);
	stack->pushStack(&p5);
	while (stack->getSizeStack() > 0)
	{
		Person *data = (Person*)stack->getTopStack();
		cout << "name = " << data->name << " age= " << data->age << " score=" << data->score << endl;
		stack->popStack();
	}
	delete stack;
	stack = nullptr;
}
int main()
{
	test();
	return 0;
}
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