title: string format for intptr_t and uintptr_t
body: <p>What is the string format for <code>intptr_t</code> and <code> uintptr_t</code>  which is valid for both the 32 and 64 bit architecture .</p>
  
  <p>EDIT</p>
  
  <pre><code>warning: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type "AAA"
  </code></pre>
  
  <p>This is the warning i am getting  in 64 bit but not in 32 bit.</p>
  
  <pre><code>  intptr_t  AAA
  </code></pre>