对stackt中的每一个对象调用某个方法,stackt采用模板进行定义

来源：互联网发布：sql基础语法编辑：程序博客网时间：2024/05/18 03:46

1. stackT.h

#ifndef STACKT_H_#define STACKT_H_template<class T> class stackIter;template<class T>class stackt{enum{ssize = 100};T stack[ssize];int top;public:stackt() : top(0){stack[top] = 0;}void push(const T& i){if(top < ssize){stack[top++] = i;}}T pop(){return stack[top > 0 ? --top : top];}friend class stackIter<T>;};template<class T>class stackIter{stackt<T>& S;int index;public:stackIter(stackt<T>& is) : S(is), index(0){}T& operator++(){if (index < S.top - 1){index++;}return S.stack[index];}T& operator++(int){int returnIndex = index;if (index < S.top - 1){index++;}return S.stack[returnIndex];}};#endif

2. main.cpp

#include "stackT.h"#include <iostream>using namespace std;template<class T, class R>void applist(stackt<T>& t1, R (T::*f)(), int size){stackIter<T> it(t1);for (int i = 0; i < size; i++){T& t = it++;(t.*f)();}}template<class T, class R, class A1, class A2>void applist(stackt<T>& t1, R (T::*f)(A1, A2), A1 a1, A2 a2, int sz){stackIter<T> it(t1);for (int i = 0; i < sz; i++){T& t = it++;(t.*f)(a1, a2);}}class gromit{int arf;public:gromit(int Arf = 1) : arf(Arf + 1){}void speek(){cout << "speek() : " << arf << endl;}int sleep(char, double){cout << "zzz..." << endl;return 0;}};int main(){stackt<gromit> dogs;const int sz = 5;for (int i = 0; i < sz; i++){dogs.push(*new gromit(i));}applist(dogs, &gromit::speek, sz);applist(dogs, &gromit::sleep, 'z', 3.0, sz);system("pause");return 1;}