title: Define macro for UIFont doesn't work
body: <p>I want define a macro for unifying all fonts in my app:</p>
  
  <pre><code>#define EXO_REGULAR_FONT(size) [UIFont fontWithName:@"Exo-Regular" size:size]
  </code></pre>
  
  <p>and than using this macro like this:</p>
  
  <pre><code>myLabel.font = EXO_REGULAR_FONT(15);
  </code></pre>
  
  <p>But the compiler give me this error: </p>
  
  <p><img src="https://i.stack.imgur.com/iYbo2.png" alt="enter image description here"></p>
  
  <p>(there is an arrow under 15).</p>
  
  <p>Any ideas to resolve ? Thanks</p>