From @MasterDuke17

I was testing rakudo out on a project euler problem and noticed some
odd behavior in multi-dimensional arrays. I modified the array in a
loop, but when that loop was finished and I printed the array in
another loop it had incorrect values. Below is some code that
demonstrates the behavior. @​d[0..3;1] should be 3,5,7,9, but instead
they're all 9. This was tested on the trunk, current as of a couple
hours ago.

Daniel Green

#/usr/bin/perl6

use v6;

my @​d[4;4];

for 0..3 -> $x {
  @​d[$x;0] = 1;
  my $s = 2 * ($x + 1);

  print "\$x=$x, \$s=$s, \@​d[\$x;0]=@​d[$x;0], \$s + \@​d[\$x;0]=" ~
$s + @​d[$x;0];

  @​d[$x;1] = $s + @​d[$x;0];
  say ", \@​d[\$x;1]=@​d[$x;1]";
}

print "\n";

for 0..3 -> $x {
  for 0..3 -> $y {
  say "\$x=$x, \$y=$y, \@​d[\$x;\$y]=@​d[$x;$y]";
  }
}

From @thundergnat

This is Rakudo Perl 6, version 2010.11 built on parrot 2.10.1
RELEASE_2_10_1-679-g9bec614

Not sure what exactly the problem was or how/when it got fixed, but it
returns what I would expect.

perl6 RT75002.pl
$x=0, $s=2, @​d[$x;0]=1, $s + @​d[$x;0]=3, @​d[$x;1]=3
$x=1, $s=4, @​d[$x;0]=1, $s + @​d[$x;0]=5, @​d[$x;1]=5
$x=2, $s=6, @​d[$x;0]=1, $s + @​d[$x;0]=7, @​d[$x;1]=7
$x=3, $s=8, @​d[$x;0]=1, $s + @​d[$x;0]=9, @​d[$x;1]=9

$x=0, $y=0, @​d[$x;$y]=1
$x=0, $y=1, @​d[$x;$y]=9
$x=0, $y=2, @​d[$x;$y]=Any()
$x=0, $y=3, @​d[$x;$y]=Any()
$x=1, $y=0, @​d[$x;$y]=1
$x=1, $y=1, @​d[$x;$y]=9
$x=1, $y=2, @​d[$x;$y]=Any()
$x=1, $y=3, @​d[$x;$y]=Any()
$x=2, $y=0, @​d[$x;$y]=1
$x=2, $y=1, @​d[$x;$y]=9
$x=2, $y=2, @​d[$x;$y]=Any()
$x=2, $y=3, @​d[$x;$y]=Any()
$x=3, $y=0, @​d[$x;$y]=1
$x=3, $y=1, @​d[$x;$y]=9
$x=3, $y=2, @​d[$x;$y]=Any()
$x=3, $y=3, @​d[$x;$y]=Any()

From @diakopter

Well, it now outputs​:

14​:01 <diakopter> r​: https://gist.github.com/2830046
14​:01 <p6eval> rakudo e2d876​: OUTPUT«===SORRY!===␤Shaped variable
declarations not yet
  implemented. Sorry. ␤at /tmp/0vgPqDbaIV​:1␤»

The RT System itself - Status changed from 'new' to 'open'

From @jnthn

On Tue May 29 12​:02​:02 2012, diakopter wrote​:

Well, it now outputs​:

14​:01 <diakopter> r​: https://gist.github.com/2830046
14​:01 <p6eval> rakudo e2d876​: OUTPUT«===SORRY!===␤Shaped variable
declarations not yet
implemented. Sorry. ␤at /tmp/0vgPqDbaIV​:1␤»

Shaped arrays, both object and native, are now implemented and, so far, covered by around 300 tests in the S09-multidim directory. We'll likely find various bits and pieces to fix, but they can be tracked by their own tickets as we discover them.

/jnthn

@jnthn - Status changed from 'open' to 'resolved'