title: Convert Character to Int in Swift 2.0
body: <p>I just want to convert a <strong>character</strong> into an <strong>Int</strong>. </p>
  
  <p>This should be simple. But I haven't found the previous answers helpful. There is always some error. Perhaps it is because I'm trying it in Swift 2.0. </p>
  
  <pre><code>for i in (unsolved.characters) {
    fileLines += String(i).toInt()
    print(i)
  }
  </code></pre>