• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag
 

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Fast NSArray compare
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Fast NSArray compare


  • Subject: Fast NSArray compare
  • From: Varun Chandramohan <email@hidden>
  • Date: Tue, 15 Apr 2014 00:02:57 +0000
  • Thread-topic: Fast NSArray compare

Hi All,

I have a question about efficiency when trying to compare NSURL. The requirement is quite simple. I try and iterate through a directory to all subdirectories and files. While doing this walk-through, I need to check against an array of NSURLs which are restricted files and folders.
This means if I find a match of file I am trying to access in the array then I don't do any operations on that file and continue.

Lets say I walkthrough 1000 files and folders, for each file/folder I need to compare against this array list. This might be slow or inefficient. Is there a faster way to do something like this?

Secondly, I plan to store array of NSURL for restricted files and folders. What is the best way to get partial compare?

Eg: Entry in array : /XYZ/abc
This means I should not iterate into the abc folder. So any files /XYZ/abc/1.c or /XYZ/abc/def/2.c should all be skipped. Whats the best way to do partial NSURL compare? Or is it better I store it as NSString instead of NSURL?

Regards,
Varun
_______________________________________________

Cocoa-dev mailing list (email@hidden)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden


  • Follow-Ups:
    • Re: Fast NSArray compare
      • From: ChanMaxthon <email@hidden>
    • Re: Fast NSArray compare
      • From: Ken Thomases <email@hidden>
    • Re: Fast NSArray compare
      • From: Graham Cox <email@hidden>
  • Prev by Date: Layout-triggered animation
  • Next by Date: Re: Fast NSArray compare
  • Previous by thread: Re: Layout-triggered animation
  • Next by thread: Re: Fast NSArray compare
  • Index(es):
    • Date
    • Thread