Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic

Re: Re: Re: Hash of hashes syntax

by Chmrr (Vicar)
on Mar 19, 2003 at 09:24 UTC ( #244298=note: print w/replies, xml ) Need Help??

in reply to Re: Re: Hash of hashes syntax
in thread Hash of hashes syntax

Good eye, but this actually isn't a problem in this case. Because of the my %h inside of the loop, %h is a different (and new) lexical through each iteration -- thus there is no problem just sticking a reference to it into the hash or array. The problem comes from code like this (nearly directly copied from perldsc):

my %hash; for $i (1..10) { %hash = somefunc($i); $hash_of_hashes{$rn} = \%hash; # WRONG! }

Note where the "my" is. See perldsc or perlreftut or perllol for more.

perl -pe '"I lo*`+$^X$\"$]!$/"=~m%(.*)%s;$_=$1;y^`+*^e v^#$&V"+@( NO CARRIER'

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://244298]
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others romping around the Monastery: (6)
As of 2016-10-23 14:29 GMT
Find Nodes?
    Voting Booth?
    How many different varieties (color, size, etc) of socks do you have in your sock drawer?

    Results (301 votes). Check out past polls.