Thanks... Now I see the one with "defined" test deals better with those possible "false" "false" inputs:-)
flotsan ""John W. Krahn"" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > Mathew Snyder wrote: >> John W. Krahn wrote: >>>>Yes, Perl has five "false" values: undef, (), 0, '' and '0', and two of >>>>those >>>>are valid input from the readline operator. >> >> Should running the above from the command line make a difference? I ran >> them both entering 0 each time and I got 0 back. This is what it looks >> like: >> >> [EMAIL PROTECTED]:~> perl -e 'if ($_ = <STDIN>) { print; }' >> 0 <---input value >> 0 <---returned value > > The problem there is that the input value is actually "0\n". Try it like > this: > > echo -n 0 | perl -e 'if ($_ = <STDIN>) { print }' > > > > John > -- > use Perl; > program > fulfillment -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
