title: Initialization makes pointer from integer without cast
body: <p>i got this warning when i try to get a character at index</p>
  
  <p>Initialization makes pointer from integer without cast</p>
  
  <p>here's the code : </p>
  
  <pre><code>int random(arch4random()%(string.length));
  NSString * char =[string charachterAtIndex:random];
  </code></pre>
  
  <p>i just wanna 
  Thanks</p>