• 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
Re: Fast hash of NSData?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Fast hash of NSData?


  • Subject: Re: Fast hash of NSData?
  • From: Scott Ribe <email@hidden>
  • Date: Mon, 02 Dec 2013 08:11:40 -0700

On Dec 2, 2013, at 7:36 AM, ChanMaxthon <email@hidden> wrote:

> How about this: treat the data as an array of 64-bit integers (zero-padded) and XOR them together? That will be really fast and you will be able to asm-optimize it.

That's an absolutely horrible hash, and it would be no faster than a good hash.

--
Scott Ribe
email@hidden
http://www.elevated-dev.com/
(303) 722-0567 voice





_______________________________________________

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


References: 
 >Re: Fast hash of NSData? (From: "Gerriet M. Denkmann" <email@hidden>)
 >Re: Fast hash of NSData? (From: ChanMaxthon <email@hidden>)
 >Re: Fast hash of NSData? (From: Graham Cox <email@hidden>)
 >Re: Fast hash of NSData? (From: ChanMaxthon <email@hidden>)

  • Prev by Date: Re: Fast hash of NSData?
  • Next by Date: Re: Fast hash of NSData?
  • Previous by thread: Re: Fast hash of NSData?
  • Next by thread: Re: Fast hash of NSData?
  • Index(es):
    • Date
    • Thread