From: Paul Archer <[EMAIL PROTECTED]> > Is there any (quick and easy) way to get a reverse range, like > (10..1), rather than a standard (1..10)? The catch is to *not* use > 'reverse'. I'm teaching Sun's perl course this week (DTP-250), and we > were talking about working on arrays. The book had an exercise that > had the student reverse an array by using pop (or shift, I don't > remember). That section is before we talk about 'reverse', and I > thought you'd be able to do it like: @array[0 .. $#array] = > @array[$#array .. 0] ...but of course, having the range count down > doesn't work.
$array[-1] is the last item, $array[-scalar(@array)] is the first so: @array[0 .. $#array] = @array[map -$_, (1 .. scalar(@array))]; Jenda ===== [EMAIL PROTECTED] === http://Jenda.Krynicky.cz ===== When it comes to wine, women and song, wizards are allowed to get drunk and croon as much as they like. -- Terry Pratchett in Sourcery -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
