title: How to sprintf an unsigned char?
body: <p>This doesn't work:</p>
  
  <pre><code>unsigned char foo;
  foo = 0x123;
  
  sprintf("the unsigned value is:%c",foo);
  </code></pre>
  
  <p>I get this error:</p>
  
  <blockquote>
    <p>cannot convert parameter 2 from
    'unsigned char' to 'char'</p>
  </blockquote>