Comments on: Day 13: Junctions http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/ Something cool about Perl 6 every day Wed, 05 Jun 2013 15:41:30 +0000 hourly 1 http://wordpress.com/ By: carl http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-181 Mon, 21 Dec 2009 00:25:17 +0000 http://perl6advent.wordpress.com/?p=244#comment-181 They happen to mean the same, so I guess they don’t work as you’d expect…

Both mean “do ALL elements in this array match ANY element in that array?”. This semantics is a consequence of the way & (all) and | (any) are unwrapped and multithreaded on; always the same order regardless of the order in the statement.

]]> By: Daniel Brockman http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-180 Sun, 20 Dec 2009 17:23:57 +0000 http://perl6advent.wordpress.com/?p=244#comment-180 Do both all(@a) == any(@b) and any(@b) == all(@a) work as expected?

]]> By: draegtun http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-108 Mon, 14 Dec 2009 11:37:50 +0000 http://perl6advent.wordpress.com/?p=244#comment-108 For Perl5 version have a look at Perl6::Junction (http://search.cpan.org/dist/Perl6-Junction/)

/I3az/

]]> By: Moritz http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-103 Sun, 13 Dec 2009 15:35:56 +0000 http://perl6advent.wordpress.com/?p=244#comment-103 In boolean context the compiler is allowed to short-circuit as soon as the result is known (but so far not implemented).

]]> By: leo http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-102 Sun, 13 Dec 2009 15:34:09 +0000 http://perl6advent.wordpress.com/?p=244#comment-102 thanks

]]> By: Robert http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-101 Sun, 13 Dec 2009 12:32:53 +0000 http://perl6advent.wordpress.com/?p=244#comment-101 You say “The code will run for each member of the junction”. Is this literally true or is there short circuting like if the first test of any that is tried turns out to be true the others are no longer performed?

]]> By: Moritz http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-100 Sun, 13 Dec 2009 12:10:17 +0000 http://perl6advent.wordpress.com/?p=244#comment-100 The bit-wise operators are +| for numeric OR, ~| for string OR etc.

]]> By: leo http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-99 Sun, 13 Dec 2009 11:41:01 +0000 http://perl6advent.wordpress.com/?p=244#comment-99 but what if you want to do a binary or of 4|3 ?

]]> By: Whack! http://perl6advent.wordpress.com/2009/12/13/day-13-junctions/#comment-98 Sun, 13 Dec 2009 07:58:07 +0000 http://perl6advent.wordpress.com/?p=244#comment-98 This is a beautiful thing….

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