#include <iostream>
using std::cout;
using std::endl;
 
#include <string>
using std::string;
 
int main()
{
  string string1( "STRINGS" );
 
  const char *ptr1 = 0;
  ptr1 = string1.data();
 
  for ( int i = 0; i < string1.length(); i++ )
    cout << *( ptr1 + i ); // use pointer arithmetic
 
  return 0;
}