logo
down
shadow

djb2 Hash Function


djb2 Hash Function

By : nikJ
Date : November 21 2020, 07:01 PM
Does that help Hash calculations often overflow. That's generally not a problem at all, so long as you have guarantees about what's going to happen when it does overflow. Don't forget that the point of a hash isn't to have a number which means something in terms of magniture etc - it's just a way of detecting equality. Why would overflow interfere with that?
code :


Share : facebook icon twitter icon
Does hash function djb2 have java version?

Does hash function djb2 have java version?


By : KunsellesnuK
Date : March 29 2020, 07:55 AM
like below fixes the issue Are you going to be interoperating with languages featuring unsigned types? If not you can probably just use the standard java long without a problem. It will probably overflow anyways (as per the discussion here djb2 Hash Function) but that's not a problem.
Here's a PermissionSet class in the wild using this implementation. Don't forget that a hashCode in Java needs to return an integer anyways, so the lack of an unsigned long should not make a difference - there will just be fewer possible values that the function takes on.
djb2 by Dan Bernstein for c++

djb2 by Dan Bernstein for c++


By : He Qiang
Date : March 29 2020, 07:55 AM
To fix the issue you can do You want s[i], not s[i++]. Even better would be to use range-based for.
code :
int hf(std::string const& s) {
    unsigned long hash = 5381;
    for (auto c : s) {
        hash = (hash << 5) + hash + c; /* hash * 33 + c */
    }
    return hash;
}
what is possibility of collision in djb2 function?

what is possibility of collision in djb2 function?


By : user3857956
Date : March 29 2020, 07:55 AM
seems to work fine I got the solution after modifying the above code.
String.prototype.hashCode = function(){ var hash = 5381; if (this.length === 0) return hash; for (var i = 0; i < this.length; i++) { var character = this.charCodeAt(i);
Passing a "String" Object into a DJB2 hash function

Passing a "String" Object into a DJB2 hash function


By : Taavi
Date : March 29 2020, 07:55 AM
may help you . I was using the standard char * version of the djb2 hash function: , Use a string instead?
code :
unsigned long DJB2(std::string str){
    unsigned long hash = 5381;
    int c;

    for (int i = 0; i < str.length(); ++i) {
        c = (int) str[i];
        hash = ((hash << 5) + hash) + c; 
    }
    return hash;
}
Hash string function djb2 avoiding collisions properly?

Hash string function djb2 avoiding collisions properly?


By : Rohan Practice
Date : March 29 2020, 07:55 AM
With these it helps I am studying about hash string functions for a hasmap in javascript. And looking into this code that I found in the web, I am not sure if the function is correct or not: ,
Does it make any sense to have this line?
code :
   hash = hash & hash;
 hash = hash & 0xFFFFFFFF
return hash ^ string.length ^ this._secret;
Related Posts Related Posts :
  • which is the best iPhone and Android Simulator for Kubuntu Linux?
  • Open Microsoft Word in "compare document" mode from command prompt
  • What is a header? Especially, what are POST@GET headers?
  • Tomcat fails to start because of jdbc driver loading
  • Reimplementing data structures in the real world
  • Condition check inside a function or before its call?
  • Is it possible to embed dynamic text into Keynote'09?
  • VS2010 express beta2 - no add reference dialog, no open file/project dialogs
  • Starting Java applet directly from jar file
  • How is other content besides views handled with PortableAreas from the MVCContrib library?
  • Nabaztag alternatives?
  • I've made something that might be useful to the community. Now what?
  • JasperReports multi-page report with different content
  • Clojure agents consuming from a queue
  • Use single static image as map
  • Why does this B+ tree have repeated elements?
  • OpenLayers eraseFeatures doesn't erase features from map screen
  • Can you help me think of problems for my programming language?
  • How to merge/crosslink Javadoc?
  • How do you automate building notes NTF files from lotus script files (lss) file?
  • How to build a programmer's wiki
  • How not to output default T4 generated file?
  • RichTextBox EnableAutoDragDrop=true requires CTRL key pressed when dropping a ListBox item?
  • How can I get Symbolic-Name of an Osgi bundle which is using one of my exported packages?
  • Get network address of a file in AppleScript
  • What is purpose of T4 Generator in T4toolbox
  • How to correctly formalize the command line usage of GNU/Linux commands?
  • What's the difference between a UseCase and a Workflow?
  • How to write a virtual machine
  • NServiceBus FullDuplex sample compiled and debugging against .NET 4.0 framework throws exception
  • Glade: How do I pass more than one argument to a signal handler?
  • Case statements in VHDL
  • New NSData with range of old NSData maintaining bytes
  • How do I convert a column of text URLs into active hyperlinks in Excel?
  • serial port parity
  • @Override fix-code shortcut in NetBeans
  • Import small number of records from a very large CSV file in Biztalk 2006
  • How to clear browser's cache from server side?
  • Execute remote Lua Script
  • Website.com/cpanel access
  • Which LOGO implementation?
  • How to add files to a document library in a site definition in SharePoint 2007?
  • JavaFX layouts question
  • Is it possible to access variable of subclass using object of superclass in polymorphism
  • How can the reliability of Software be checked through analysis?
  • Prototype Multi-Event Observation for Multi-Elements
  • maximum stored proc name in firebird
  • AutoComplete implementation
  • How is it that i am getting two different open ids for the same site for the same user
  • Revision histories and documenting changes
  • How to use Int13H Ext to read /write all sectors on each partition of harddisk (>8GB)
  • Dijit.Dialog 1.4, setting size is limited to 600x400 no matter what size I set it
  • Windows Phone 7 Notifications/Pop/Toasts
  • StructureMap: "No default instance of plugin defined" - even though it is
  • Getting HTTPS working with Traefik and GCE Ingress
  • flask with bootstrap4, not show modal, use CDN works well
  • How to get the formatted view of YQL as result?
  • wsadmin is taking 10 minutes to connect to Application Server
  • TCL array values updation based on command line argument
  • Wordpress: help with posts_nav_link()
  • shadow
    Privacy Policy - Terms - Contact Us © 35dp-dentalpractice.co.uk