title: What does "for each value converted" mean in the following sentence?
body: <p>What does "for each value converted" mean in the following sentence?</p>
  
  <blockquote>
    <p>Q: Why doesn't the call <code>scanf("%d", i)</code> work? </p>
    
    <p>A: The arguments you pass to <code>scanf</code> must always be pointers: <strong>for each
    value converted</strong>, scanf "returns" it by filling in one of the
    locations you've passed pointers to. (See also <a href="http://www.c-faq.com/misc/multretval.html" rel="nofollow">question 20.1</a>.) To fix
    the fragment above, change it to <code>scanf("%d", &amp;i)</code> .</p>
  </blockquote>
  
  <p>I have found this in the <a href="http://www.c-faq.com/" rel="nofollow">c-faq</a>; it's <a href="http://www.c-faq.com/stdio/scanf1.html" rel="nofollow">question 12.12</a>.</p>