stack.cpp

我学习C++ Primer Plus过程中写下的课后作业的编程代码

// stack.cpp
#include <iostream>
#include "stack.h"

Stack::Stack()
{
	top = 0;
}

bool	Stack::ismpty()const
{
	return 0 == top;
}

bool	Stack::isfull()const
{
	return top == MAX;
}

bool	Stack::push(const Item & item)
{
	if(top < MAX)
	{
		items[top++] = item;
		return true;
	}
	else
		return false;
}

bool	Stack::pop (Item & item)
{
	if(top > 0)
	{
		item = items[--top];
		return true;
	}
	else
		return false;
}