Date: 10 Sep 2001 13:25:21 -0400
From: stanb@panix.com (Stan Brown)
Subject: Probelm with undefined atgumnets
Message-Id: <9nit21$8kn$1@panix2.panix.com>

A kind member of this group showed me a neat trick to print out the
arguments to a given function. It goes like this:

join ', ', map { "Arg$_ ->$_[$_]<-" } 0 .. $#_;

This works great _except_ when I pass in undef for an argumentm then I get
a warning about concatenating an unitliazed variable. 

How can I improve thsi to allow for this case?