example2.cpp

Advanced Internet Programming Lecture 2 C/C++ Review Li,Suke School of Software and Microelectroni

#include <iostream>
#include <cstring>
using namespace std;

struct mystr {
  void buildstr(char *s); // public
  void showstr();
private: // now go private
  char str[255];
} ;

void mystr::buildstr(char *s)
{
  if(!*s) *str = '\0'; // initialize string
  else strcat(str, s);
}

void mystr::showstr()
{
  cout << str << "\n";
}

int main()
{
  mystr s;

  s.buildstr(""); // init
  s.buildstr("Hello ");
  s.buildstr("there!");

  s.showstr();

  return 0;
}