Re^2: Coredump error.

Thanks for the help
The perl code is as below

 (@sortkey)=('0','1','2','3','4','5','6','7','8','9','10','11','12','1
+3','14','15
');
(@names)=("xyz","iop","abc","opop","qwer","kkkk","wwww","qqqq","wwpp",
+"klkoo","p
pii","mmmm","hhhh","yyyy","ssss","eee");
@sortkey = sort { lc($names[$sortkey[$a]]) cmp lc($names[$sortkey[$b]]
+) } @sortk
ey;

foreach $i (0..$#names) {
        print "$names[$sortkey[$i]]\n";
}
[download]

the exact output is
=> perl try70.pl
Bus error(coredump)
the perl version is perl5.8.7 and running on HPUX
thanks,
Renu.

Comment on Re^2: Coredump error. Download Code

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Re^3: Coredump error. by Corion (Patriarch) on Jul 18, 2006 at 11:50 UTC
I think this error is related to Perl RT Ticket 39358 which is opened and discussed in http://www.xray.mpe.mpg.de/mailing-lists/perl5-porters/2006-06/msg00276.html. The problem is that you cannot refer to the contents of the array within the comparator during an in-place sort, and it should be fixed in recent bleadperls, at least once dave_the_m gets around to it.	[reply]
Re^3: Coredump error. by gellyfish (Monsignor) on Jul 18, 2006 at 10:48 UTC
Ah. Yes that does coredump with both 5.9.4 @ DEVEL28476 and 5.8.8 that I have here, but not with 5.8.1. Please can you use the perlbug program to submit a report including the offending code. /J\	[reply]
Re^4: Coredump error. by swampyankee (Parson) on Jul 18, 2006 at 17:03 UTC
It gives a segmentation violation on Windows XP with ActiveState's Perl 5.8.8, build 817. I've entered an Active State bug for it, referencing the OP's post. I also gave the OP credit for finding it. emc e^(π√−1) = −1	[reply]
Re^3: Coredump error. by Moron (Curate) on Jul 18, 2006 at 11:08 UTC
I don't have all the required Perl versions to test here, but the "( @arr ) = ( listelement, ... )" construction looks suspiciously ambiguous. Have you tried dropping the brackets from the left hand side of the list-to-array assignments? -M Free your mind	[reply]
Re^4: Coredump error. by gellyfish (Monsignor) on Jul 18, 2006 at 11:27 UTC
That doesn't make any difference, however making both `@sortkey` and `@names` lexicals does make a difference with 5.8.8 but not blead (they segfaulted in different places in the original code.) /J\	[reply] [d/l] [select]