title: passing float variable as parameter
body: <p>I am trying to write a method with <code>float</code> parameter and call it using performSelector` but I am getting error in doing this. Following is my code:</p>
  <pre class="lang-objectivec prettyprint-override"><code>[sender performSelector:selector withObject:progress/total];
  </code></pre>
  <p>Here progress and total both are <code>float</code> variable.</p>
  <p>I am trying to call following method in different class:</p>
  <pre class="lang-objectivec prettyprint-override"><code>-(void) updateProgress:(float)fl {
      
  }
  </code></pre>