R. Joseph Newton wrote:
> Dan Muey wrote:
> > >
> > > use:
> > > if ( defined $ARGV[0] && ....)
> >
> > Thanks that did it!
>
> Whoops! Should have read this before I posted. Using defined() will capture a
> 0 from STDIN, which could be ameaningful value. Your suggestion is much better
> than mine on this thread.
Or, more properly,
if ( exists $ARGV[0] && ....)
or
if ( @ARGV > 0 && ....)
or ( only in the case of element number zero )
if ( @ARGV && ....)
any of which which will still issue the warning if the element is there but
has ( presumably through some error ) been set to 'undef'.
Rob
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