Hi, this is just a heads up about a bug report I just filed to p5p and the maintainer of Data::Dumper. If you set $Data::Dumper::Sortkeys=1 and do not set $Data::Dumper::Useperl=1 under 5.6.1 (win32 at least) you will end up with either erroneous data or a segfault. If you set both at the same time this problem doesnt arise.
Note that this bug does not appear to affect 5.8.0 at all.
use Data::Dumper;
use strict;
use warnings;
$|++;
printf "D::D version %s\n",Data::Dumper->VERSION;
for my $sk (0,1) {
print "\$Data::Dumper::Sortkeys=$sk\n";
$Data::Dumper::Sortkeys=$sk;
for my $up (1,0) {
print "\$Data::Dumper::Useperl=$up\n";
$Data::Dumper::Useperl=$up;
my %rev;
my %name;
print "Dumper:\n",Dumper(\%rev,\%name),"\n";
}
}
print "Done\n";
__END__
D::D version 2.121
$Data::Dumper::Sortkeys=0
$Data::Dumper::Useperl=1
Dumper:
$VAR1 = {};
$VAR2 = {};
$Data::Dumper::Useperl=0
Dumper:
$VAR1 = {};
$VAR2 = {};
$Data::Dumper::Sortkeys=1
$Data::Dumper::Useperl=1
Dumper:
$VAR1 = {};
$VAR2 = {};
$Data::Dumper::Useperl=0
Use of uninitialized value in print at c:\temp\test_dd.pl line 15.
Dumper:
$VAR2 = {};
I post this only as a public service, as I know many people here depend on DD in many ways, and this is a serious bug that is not picked up by the test suite.
Cheers,
---
demerphq
First they ignore you, then they laugh at you, then they fight you, then you win.
-- Gandhi
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