Beefy Boxes and Bandwidth Generously Provided by pair Networks
laziness, impatience, and hubris

Re^4: scanning hash

by bageler (Hermit)
on Aug 01, 2004 at 15:06 UTC ( #379085=note: print w/replies, xml ) Need Help??

in reply to Re^3: scanning hash
in thread scanning hash

need to change that slightly so it will return true if all the keys are undef:
return 0 unless defined $_ ? $_ eq $value : defined $value ? 0 : 1

Replies are listed 'Best First'.
Re^5: scanning hash
by Aristotle (Chancellor) on Aug 01, 2004 at 15:09 UTC

    No, I don't.

    $ perl -le'print undef eq undef' 1

    Update: oh, I see what made you think that. I had to NOT my XOR condition. I forgot that XOR produces false rather than true if both operands are equal.

    Makeshifts last the longest.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://379085]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (6)
As of 2016-10-26 21:24 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (349 votes). Check out past polls.