From: Patrick Hurley <phurley@...>
Date: 2007-02-24T05:50:00+09:00
Subject: Re: Any way to undef a constant?

Try:

ri Module#remove_const

---------------------------------------------------- Module#remove_const
     remove_const(sym)   => obj
------------------------------------------------------------------------
     Removes the definition of the given constant, returning that
     constant's value. Predefined classes and singleton objects (such as
     _true_) cannot be removed.

pth