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Groups > comp.lang.c > #26618

Re: Swapping logic

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On 9/23/2012 12:35 PM, Casey Carter wrote:
> On 2012-09-23 07:48, ZUBAIR TRALI wrote:
>> #include<stdio.h>
>> /*new logic for swapping*/
>> #include<conio.h>
>> void main()
>>   {
>>     int x=20,y=30;
>> printf("nos before swapping are %d and %d\n",x,y);
>>      x=x*y/(y=x);
>> printf("nos after swapping are %d and %d\n",x,y);
>> getch();
>> }
>>
> I think you're looking for:
> x ^= y;
> y ^= x;
> x ^= y;

     Don't do this.  See Question 20.15c on the comp.lang.c
Frequently Asked Questions (FAQ) page, <http://www.c-faq.com/>.

-- 
Eric Sosman
esosman@ieee-dot-org.invalid

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Swapping logic ZUBAIR TRALI <bhat.zubair789@gmail.com> - 2012-09-23 05:48 -0700
  Re: Swapping logic Richard Damon <news.x.richarddamon@xoxy.net> - 2012-09-23 09:04 -0400
  Re: Swapping logic Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-09-23 09:15 -0400
    Re: Swapping logic Noob <root@127.0.0.1> - 2012-09-24 12:56 +0200
  Re: Swapping logic Casey Carter <Casey_at_Carter_dot_net@dontspam.me.invalid> - 2012-09-23 11:35 -0500
    Re: Swapping logic Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-09-23 14:19 -0400
      Re: Swapping logic Nobody <nobody@nowhere.com> - 2012-09-24 10:57 +0100
      Re: Swapping logic Andrew Smallshaw <andrews@sdf.lonestar.org> - 2012-09-26 05:20 +0000
        Re: Swapping logic Gareth Owen <gwowen@gmail.com> - 2012-09-26 06:46 +0100
          Re: Swapping logic David Brown <david@westcontrol.removethisbit.com> - 2012-09-26 08:16 +0200
            Re: Swapping logic Gareth Owen <gwowen@gmail.com> - 2012-09-26 17:51 +0100
  Re: Swapping logic Kaz Kylheku <kaz@kylheku.com> - 2012-09-23 18:19 +0000

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