title: Doubt in Conditional inclusion
body: <p>This is actually extracted from my module (Pre-processor in C)</p>
  
  <p><em><strong>The conditional expression could contain any C operator except for the assignment operators,increment, and decrement operators.</em></strong></p>
  
  <p>I am not sure if I am getting this statement or not since I tried using <a href="http://ideone.com/r5Spc" rel="nofollow">this</a> and it worked.Also for other manipulation a probable work around would be to simply declare macro or function inside the conditional expression,<a href="http://ideone.com/83Vm0" rel="nofollow">something like this to be precise</a>.</p>
  
  <p>Also I don't understand what is the rationale behind this rule. Could somebody explain?</p>
  
  <p>Thanks</p>