Beefy Boxes and Bandwidth Generously Provided by pair Networks
XP is just a number
 
PerlMonks  

Re^2: Sort - can't

by chas (Priest)
on Aug 29, 2005 at 01:36 UTC ( #487321=note: print w/replies, xml ) Need Help??


in reply to Re: Sort - can't
in thread Sort - can't

"($sub1, $sub2, $sub3) = split (/\_/, @array,3); $sub3 = sort { $b <=> $a } $sub3;"

It isn't clear to me what your array is exactly, but in any case, as has been remarked already, $sub3 will be a single string, and sorting it will have no effect. It isn't clear to me what you want to do or I would have offered more suggestions.
chas
(Update: Actually, what I said is misleading. I *think* the first line of the code above will take @array in scalar context giving the number of elements, and then $sub1 will be this value; $sub2 and $sub3 will be empty. The sorting will do nothing useful, of course. So perhaps you should just ignore my reply above and read the other replies...)

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://487321]
help
Chatterbox?
[Corion]: But now I want to register a one-shot for two events, of which only one will arrive, so my data structure doesn't work anymore...
[Lady_Aleena]: Corion, ouchy.
[Corion]: (maybe I should write this up as a SoPW) - currently, the "most efficient" data structure I come up with is a single array which I scan for the first fitting one-shot. Not efficient but I don't expect more than five outstanding one-shots anyway
[choroba]: can't you create a meta-key corresponding to the disjunction of the events?
[robby_dobby]: Corion: Heh. This whole thing smells of Strategy Pattern or MVC pattern.
[Corion]: And performance linear to the number of registered one-shots doesn't feel that bad. Maybe I should collect statistics on how many callbacks are outstanding ;)
[Corion]: choroba: Yes, but the longer I thought about efficient hashes mapping the event type back to their callbacks, and how to keep them in sync, the more I thought that all that optimization might just not be worth it, even if it's horribly inelegant
[Lady_Aleena]: My biggest problem with hashes at the moment is one with 2,501 keys.
[choroba]: how many event types are there?
[Corion]: Also I found that I can't conveniently weaken an array slot, which also is inconvenient, as I want my one-shots to disappear if the caller discards them

How do I use this? | Other CB clients
Other Users?
Others perusing the Monastery: (9)
As of 2017-05-29 07:54 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?