5.8 hash as a reference is deprecated??

Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:

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Re: 5.8 hash as a reference is deprecated?? by adrianh (Chancellor) on Oct 31, 2003 at 13:04 UTC
Because it's wrong :-) You should be using a hash like a hash `%hash{$item_one}{$ip}` [download] `$hash{$item_one}{$ip}` [download] or a hashref like a reference `$hashref->{$item_one}{$ip}` [download] The `%hash->{}` code had undefined behaviour and is now (quite correctly) being deprecated .	[reply] [d/l] [select]
•Re: Re: 5.8 hash as a reference is deprecated?? by merlyn (Sage) on Oct 31, 2003 at 13:16 UTC
`%hash{$item_one}{$ip}` [download] Not until Perl6 comes out! Perhaps you meant `$hash{$item_one}{$ip}` [download] -- Randal L. Schwartz, Perl hacker Be sure to read my standard disclaimer if this is a reply.	[reply] [d/l] [select]
Re^3: 5.8 hash as a reference is deprecated?? by adrianh (Chancellor) on Oct 31, 2003 at 13:26 UTC
D'oh! Fixed.	[reply]
Re: 5.8 hash as a reference is deprecated?? by Limbic~Region (Chancellor) on Oct 31, 2003 at 13:05 UTC
Anonymous Monk, By using the % sigil, you mean the entire hash. You probably want to change the % to a $, meaning a specific key. If you did want to assign the entire hash to a list of keys and values, you would use something like: `%{ $hash->{$item_one}{$ip} } = ( key => 'value' );` [download] I hope this helps - L~R	[reply] [d/l]
Re: 5.8 hash as a reference is deprecated?? by pg (Canon) on Oct 31, 2003 at 16:28 UTC
This was actually deprecated even in versions like 5.6.1, but Perl silently accepted the wrong syntax, and now it starts to print out this message. A similar warning is given for array, if you do something like: `use strict; use warnings; my @a = (1..100); my $aref = \@a; print @aref->[0];` [download]	[reply] [d/l]