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栈：(stack.h)
#ifndef __STACK_H__
#define __STACK_H__
#include <iostream>
#include<string>
#include<sstream>
using namespace std;
template <typename T,int num>
class Stack
{
private:
int _top;
T _parr[num];
public:
Stack();
~Stack();
bool full();
bool empty();
bool push(T elem);
bool pop(T &);
int getPos()
{
return _top;
}
};
template <typename T,int num>
Stack<T,num>::Stack():_top(-1)
{}
template <typename T,int num>
Stack<T,num>::~Stack()
{}
template <typename T,int num>
bool Stack<T,num>::full()
{
return _top == (num-1);
}
template <typename T,int num>
bool Stack<T,num>::empty()
{
return _top == -1;
}
template <typename T,int num>
bool Stack<T,num>::push(T elem)
{
if(!full())
{
_parr[++_top] = elem;
return true;
}
return false;
}
template <typename T,int num>
bool Stack<T,num>::pop(T & t)
{
if(!empty())
{
t = _parr[_top--];
return true;
}
else
return false;
}
#endif
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测试代码(testStack.cpp)
#include"stack.h"
int test0(void)
{
Stack<int, 10> stackInt;
cout << "开始时stakcInt是否为空?" << stackInt.empty() << endl;
stackInt.push(5);
cout << "此始时stakcInt是否为空?" << stackInt.empty() << endl;
for(int idx = 1; idx !=10; ++idx)
{
stackInt.push(idx);
}
cout << "此时stakcInt是否已满?" << stackInt.full() << endl;
for(int idx = 0; idx != 10; ++idx)
{
int elem = 0;
stackInt.pop(elem);
cout << elem << " ";
}
cout << endl;
return 0;
}
int test1(void)
{
Stack<string, 10> stackInt;
cout << "开始时stakcInt是否为空?" << stackInt.empty() << endl;
stackInt.push("aa");
cout << "此始时stakcInt是否为空?" << stackInt.empty() << endl;
for(int idx = 1; idx !=10; ++idx)
{
string s(2, 'a' + idx);
//string类的一个构造函数，表示含有2个元素的string对象，其中每个元素都初始化为后面的字符
stackInt.push(s);
}
cout << "此时stakcInt是否已满?" << stackInt.full() << endl;
for(int idx = 0; idx != 10; ++idx)
{
string elem;
stackInt.pop(elem);
cout << elem << " ";
}
cout << endl;
return 0;
}
int main()
{
test0();
test1();
return 0;
}
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