title: What happens when I use the wrong format specifier?
body: <p>Just wondering what happens when I use the wrong format specifier in C?</p>
  
  <p>For example:</p>
  
  <pre><code>x = 'A';
  printf("%c\n", x);
  printf("%d\n", x);
  
  x = 65;
  printf("%c\n", x);
  printf("%d\n", x);
  
  x = 128;
  printf("%d\n", x);
  </code></pre>