title: Why can i use integers inside CGSizeMake and CGRectMake?
body: <p>I use integers all the time in these two commands. It works fine and I suspect it's common to do this.</p>
  
  <p>But technically, I believe they require CG Floats, not integers.</p>
  
  <p>Why does it work, and it is wrong to do this? If so, how to easily convert an <code>int</code> into a <code>cg float</code> ?</p>