Wc -Sx- Jones wrote: you said:
> UNDEF will be 'treated' as FALSE; Larry had to have some sanity > somewhere... clearly stating that undef is false but later you said: > > ( But, UNDEF is not TRUE OR FALSE - it is undefined. ) > clearly stating that undef is neither true nor false. which way is it? i got some off line messages telling me to just ignore this thread so this will be my last post to this thread and i want to make it clear: * undef in Perl is false: [panda]# perl -le 'print +(undef) ? "true" : "false"' false [panda]# * any valid Perl expression can only be evaluated to 2 possible values when used as a boolean expression: true or false. david -- s$s*$+/<tgmecJ"ntgR"tgjvqpC"vuwL$;$;=qq$ \x24\x5f\x3d\x72\x65\x76\x65\x72\x73\x65 \x24\x5f\x3b\x73\x2f\x2e\x2f\x63\x68\x72 \x28\x6f\x72\x64\x28\x24\x26\x29\x2d\x32 \x29\x2f\x67\x65\x3b\x70\x72\x69\x6e\x74 \x22\x24\x5f\x5c\x6e\x22\x3b\x3b$;eval$; -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
