Beefy Boxes and Bandwidth Generously Provided by pair Networks
Clear questions and runnable code
get the best and fastest answer
 
PerlMonks  

Re: Copy of multidimensional hash

by davido (Archbishop)
on Jan 03, 2013 at 08:57 UTC ( #1011420=note: print w/ replies, xml ) Need Help??


in reply to Copy of multidimensional hash

Multi-dimensional data structures in Perl use references. Each of your hash keys indexes a value. That value is a reference to an anonymous array. When you copy the hashes, the new one still holds the same references, to the same anonymous arrays.

You want to look at Storable's dclone() function: It makes a deep recursive copy of the values rather than a shallow copy of the references.


Dave


Comment on Re: Copy of multidimensional hash
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://1011420]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others imbibing at the Monastery: (8)
As of 2014-11-28 22:07 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    My preferred Perl binaries come from:














    Results (200 votes), past polls