From: Aleksei Guzev <aleksei.guzev@...>
Date: 2001-07-23T00:43:47+09:00
Subject: [ruby-talk:18293] NUM2LONG problem :)

Just now I met a funny problem with NUM2LONG macro.

I've written a line like the following

 return NUM2LONG( fn( x ) );

Function fn has vivid side effect and NUM2LONG calls it twice ( see its
definition ) :) 
Do not do like above!