Beefy Boxes and Bandwidth Generously Provided by pair Networks
No such thing as a small change
 
PerlMonks  

RE: (tilly) 2 (possibilities): interchanging variables the tough way

by tilly (Archbishop)
on Aug 31, 2000 at 16:08 UTC ( #30496=note: print w/ replies, xml ) Need Help??


in reply to RE (tilly) 1 (possibilities): interchanging variables the tough way
in thread interchanging variables the tough way

Looking at this bugs me.

Manipulating your input arguments this way works, but the side-effects can surprise and amaze. I would not do this lightly.

My overall feeling is that if you feel the need to rotate your data, you should have an array rather than a list of variables. Then you could

push @array, shift @array;
much faster, without resorting to nasty side-effects.

Generally when I see myself wanting to resort to "bad" techniques like side-effects, I take that as a danger sign and go looking for a more fundamental mistake in my code...


Comment on RE: (tilly) 2 (possibilities): interchanging variables the tough way
Download Code

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://30496]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others chilling in the Monastery: (8)
As of 2014-08-22 10:09 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (153 votes), past polls