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Re: Qucksort for Linked List

From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.c++
Subject Re: Qucksort for Linked List
Date 2016-12-03 11:07 +0000
Organization A noiseless patient Spider
Message-ID <87fum5jmnp.fsf@bsb.me.uk> (permalink)
References (2 earlier) <o1st51$4ld$1@reader1.panix.com> <afeb4d7b-66a1-41a0-86dc-0027820fca41@googlegroups.com> <o1t9vs$df9$1@reader1.panix.com> <7a1c65f5-c6c7-42f1-9c53-d33a755a6511@googlegroups.com> <9e354e3a-6f50-4434-b1ab-0c75fcf14f80@googlegroups.com>

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xerofoify <xerofoify@gmail.com> writes:

There seems to be more code than I'd expect and I don't have time to go
though it but here are two remarks that jump out at me...

<snip>
> 	//Swap function for nodes
> 	void swap ( Node* a, Node* b ) {   
> 	Node *t = a;      
> 	a = b;       
> 	b = t;   	
> 		}

This function does nothing.  It alters only local objects so has no
effect on the lists you are trying to alter.


> The reason I am asking is there appears to be no good examples for
> quicksort *with Node* swap not data swap which is what I want. So can
> someone point me to an example that does it by swapping the nodes and
> not the data.

It's not a natural list algorithm, so examples will be rare.  It takes
care not to make it very inefficient on linked lists, but you can
probably find some tips about that in the literature about function
programming.  Can I ask why you are using it?

-- 
Ben.

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Thread

Qucksort for Linked List xerofoify <xerofoify@gmail.com> - 2016-12-02 10:14 -0800
  Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-02 19:17 +0000
    Re: Qucksort for Linked List Melzzzzz <mel@zzzzz.com> - 2016-12-02 22:09 +0100
      Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-02 21:26 +0000
        Re: Qucksort for Linked List Melzzzzz <mel@zzzzz.com> - 2016-12-02 22:37 +0100
          Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-02 21:41 +0000
    Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-12 13:16 +0000
      Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-12 18:32 +0000
        Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-12 18:34 +0000
        Re: Qucksort for Linked List asetofsymbols@gmail.com - 2016-12-12 10:44 -0800
          Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-12 21:30 +0000
        Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-13 07:26 +0000
          Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-13 17:51 +0000
            Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-13 14:52 -0800
            Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-14 10:26 +0000
            Re: Qucksort for Linked List "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-12-14 13:05 +0100
              Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-14 14:06 +0000
                Re: Qucksort for Linked List "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-12-14 16:59 +0100
              Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-14 20:19 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-14 21:23 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-14 21:42 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-14 22:43 +0000
                Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-16 11:02 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-16 23:00 +0000
                Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-16 23:00 -0800
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-17 20:17 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-18 21:15 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-18 21:49 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-18 21:51 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-18 21:52 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-18 21:56 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-18 22:04 +0000
                Re: Qucksort for Linked List Paavo Helde <myfirstname@osa.pri.ee> - 2016-12-19 00:22 +0200
                Re: Qucksort for Linked List "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-12-19 00:18 +0100
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-19 08:58 +0100
                Re: Qucksort for Linked List gwowen <gwowen@gmail.com> - 2016-12-19 06:17 -0800
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-19 20:14 +0000
                Re: Qucksort for Linked List woodbrian77@gmail.com - 2016-12-23 10:55 -0800
                Re: Qucksort for Linked List Daniel <danielaparker@gmail.com> - 2016-12-23 12:08 -0800
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-27 10:39 +0100
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-27 17:48 +0000
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-27 17:53 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-27 18:52 +0000
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-27 19:06 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-27 19:17 +0000
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-27 21:05 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-27 21:15 +0000
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-27 21:21 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-27 21:29 +0000
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-27 21:33 +0000
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-28 10:03 +0100
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-28 15:34 +0000
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-29 09:38 +0100
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-28 16:40 +0000
                Re: Qucksort for Linked List Daniel <danielaparker@gmail.com> - 2016-12-28 08:55 -0800
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-28 17:02 +0000
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-28 17:12 +0000
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-28 17:21 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-29 11:05 -0600
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-29 17:43 +0000
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-30 09:48 +0100
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-30 11:37 +0000
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-30 13:23 +0100
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-29 11:00 +0100
                Re: Qucksort for Linked List David Brown <david.brown@hesbynett.no> - 2016-12-29 09:43 +0100
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-18 22:56 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-18 22:52 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-18 23:07 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-19 05:48 +0000
                Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-19 08:09 +0000
                Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-19 08:06 +0000
                Re: Qucksort for Linked List leigh.v.johnston@googlemail.com - 2016-12-19 04:46 -0800
                Re: Qucksort for Linked List bartekltg <bartekltg@gmail.com> - 2016-12-19 15:04 +0100
                Re: Qucksort for Linked List gwowen <gwowen@gmail.com> - 2016-12-19 06:40 -0800
                Re: Qucksort for Linked List bartekltg <bartekltg@gmail.com> - 2016-12-19 18:48 +0100
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-19 18:53 +0000
                Re: Qucksort for Linked List bartekltg <bartekltg@gmail.com> - 2016-12-19 21:26 +0100
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-19 20:32 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-19 19:09 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-19 19:14 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-19 19:31 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-19 19:45 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-19 20:19 +0000
                Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-20 07:18 +0000
                Re: Qucksort for Linked List leigh.v.johnston@googlemail.com - 2016-12-20 04:31 -0800
                Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-21 07:08 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-21 19:39 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-21 20:54 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-21 19:28 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-21 19:43 +0000
                Re: Qucksort for Linked List Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-21 20:34 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-21 20:53 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-21 20:58 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-21 23:34 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-22 00:19 +0000
                Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2017-01-04 07:04 +0000
                Re: Qucksort for Linked List Daniel <danielaparker@gmail.com> - 2017-01-04 07:18 -0800
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2017-01-04 18:39 +0000
                Re: Qucksort for Linked List Daniel <danielaparker@gmail.com> - 2017-01-05 07:29 -0800
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2017-01-05 21:21 +0000
                Re: Qucksort for Linked List Ian Collins <ian-news@hotmail.com> - 2017-01-06 10:35 +1300
                Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-22 21:43 -0800
                Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-22 22:09 -0800
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-23 17:00 +0000
                Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-23 12:03 -0800
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-23 20:25 +0000
                Re: Qucksort for Linked List Gareth Owen <gwowen@gmail.com> - 2016-12-23 20:56 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-23 22:02 +0000
                Re: Qucksort for Linked List Mr Flibble <flibbleREMOVETHISBIT@i42.co.uk> - 2016-12-23 22:14 +0000
                Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-29 13:56 -0800
                Re: Qucksort for Linked List Mr Flibble <flibble@i42.co.uk> - 2016-12-29 23:26 +0000
                Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2016-12-29 20:25 -0800
                Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2017-01-04 07:07 +0000
                Re: Qucksort for Linked List Tim Rentsch <txr@alumni.caltech.edu> - 2017-01-26 22:40 -0800
  Re: Qucksort for Linked List xerofoify <xerofoify@gmail.com> - 2016-12-02 13:47 -0800
    Re: Qucksort for Linked List ruben safir <ruben@mrbrklyn.com> - 2016-12-02 17:38 -0500
      Re: Qucksort for Linked List xerofoify <xerofoify@gmail.com> - 2016-12-02 14:53 -0800
        Re: Qucksort for Linked List Jerry Stuckle <jstucklex@attglobal.net> - 2016-12-02 19:50 -0500
        Re: Qucksort for Linked List ruben safir <ruben@mrbrklyn.com> - 2016-12-02 21:17 -0500
          Re: Qucksort for Linked List xerofoify <xerofoify@gmail.com> - 2016-12-02 20:44 -0800
            Re: Qucksort for Linked List xerofoify <xerofoify@gmail.com> - 2016-12-02 20:52 -0800
              Re: Qucksort for Linked List Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-12-03 11:07 +0000
            Re: Qucksort for Linked List ruben safir <ruben@mrbrklyn.com> - 2016-12-03 13:38 -0500
    Re: Qucksort for Linked List Öö Tiib <ootiib@hot.ee> - 2016-12-03 01:46 -0800
      Re: Qucksort for Linked List Juha Nieminen <nospam@thanks.invalid> - 2016-12-12 13:18 +0000
  Re: Qucksort for Linked List "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2016-12-03 01:16 +0100
    Re: Qucksort for Linked List bartekltg <bartekltg@gmail.com> - 2016-12-03 08:25 +0100
  Re: Qucksort for Linked List bartekltg <bartekltg@gmail.com> - 2016-12-03 08:05 +0100

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