C++primer plus 第五版 第8章 课后编程题

/*****************************************Author : QianWenTime   : 2017/12/21From   : 第八章第4题******************************************/#include "stdafx.h"#include<iostream>using namespace std;#include<cstring>struct stringy{char* str;int ct;};void set(stringy &, char[]);void show(const char* a, int n = 1);void show(const stringy & b, int n = 1);int main(){stringy beany;char testing[] = "reality isn't what it used to be. ";set(beany, testing);show(beany);show(beany, 2);testing[0] = 'D';testing[1] = 'u';show(testing);show(testing, 3);show("done!");cin.get();return 0;}void set(stringy & sc,  char * tests){sc.ct = strlen(tests);sc.str = new char[sc.ct + 1];strcpy(sc.str,tests);}void show(const char* a, int n){while (n-- > 0){cout << n <<a<<"\n";}}void show(const stringy & b, int n){while (n-- > 0){cout <<n<< b.str<<"\n";}}