title: What does get_string() return?
body: <pre><code>string s= get_string("s: ") ;
  printf("%s\n", s) ;
  </code></pre>
  
  <p>Look at the code above. Normally get_string should return the address of the string entered which is a number. But when you actually try to printout s, the entered string is printed out. Why is the address ie number not printed out?</p>