#include <iostream>
using namespace std;
//char_array_getline1.cpp
void demo();
  int main()
  {
    char s1[11];char s2[11]; 
	cout<<"\n first phase : " ; 
	cin.getline(s1, 11);// may cause buffer-overflow 
	  while (!cin.fail()) // quit on buffer-overlow
	 { 
      cout << "Enter some text: ";
      cin.getline(s2, 11);
      cout << "You entered '"<< s1 << "' & "<< s2<< endl;
     }
    cin.clear();
    demo();
    return 0;
  }
  void demo()
  {
	  cout<<"\n This is demo ";
  }