Re: Re: Grabbing slices

Actually, now I come to look at the output from dumper:

$VAR1 = [
          0,
          '1',
          2,
          '2',
          3,
          5
        ];
[download]

I'm wondering about the significance of some of the numbers coming out in quotes. At first I wondered if it had something to do with the brackets on the push line.

Can anyone enlighten me?

Cheers,
Dom.

Comment on Re: Re: Grabbing slices Download Code

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Re: Re: Re: Grabbing slices by Util (Priest) on May 03, 2003 at 21:59 UTC
It is a bug in the XS version of Data::Dumper before v2.11. To see your version id: `perl -MData::Dumper -wle 'print $Data::Dumper::VERSION'` [download] 2.102 is in the base code for Perl 5.6.1, and has the bug. 2.12 is in the base code for Perl 5.8.0, and does not have the bug. My testing script: `perl -MData::Dumper -wle '$Data::Dumper::Indent=0;print Dumper [ map { + ($_, $_+0) } 0..3 ]'` [download] Good output: `$VAR1 = [0,0,1,1,2,2,3,3];` [download] Buggy output: `$VAR1 = [0,'0',1,'1',2,'2',3,'3'];` [download] If you set `Useqq`, as a side-effect, it will force Data::Dumper to use the pure-Perl forms of its code. This is slower, but will work around the bug in older versions. `$Data::Dumper::Useqq = 1;` [download]	[reply] [d/l] [select]

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Re: Re: Re: Grabbing slices
by Util (Priest) on May 03, 2003 at 21:59 UTC

It is a bug in the XS version of Data::Dumper before v2.11. To see your version id:

perl -MData::Dumper -wle 'print $Data::Dumper::VERSION'
[download]

My testing script:

perl -MData::Dumper -wle '$Data::Dumper::Indent=0;print Dumper [ map {
+ ($_, $_+0) } 0..3 ]'
[download]

$VAR1 = [0,0,1,1,2,2,3,3];
[download]

$VAR1 = [0,'0',1,'1',2,'2',3,'3'];
[download]

If you set Useqq, as a side-effect, it will force Data::Dumper to use the pure-Perl forms of its code.
This is slower, but will work around the bug in older versions.

$Data::Dumper::Useqq = 1;
[download]

[reply]
[d/l]
[select]