sorry its the same cause you Xored a with b again
On 29 June 2010 15:21, shrinivas <[email protected]> wrote:
> hi friends i m new to this group, i found very interesting and useful
> discussion here....
> this is code for adding two number without arithmetic operator
>
> int add(int a, int b)
> {
> do
> {
> a=a^b;
> b=(a^b)&b;
> b=b<<1;
> } while(b);
>
> return(a);
> }
>
>
> it is working well for negative numbers also . i tried lot but can not
> understand logic behind it can any one explain it in easy manner ...
> thanks in advance
>
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Thanks & Regards,
Priyanka Chatterjee
Final Year Undergraduate Student,
Computer Science & Engineering,
National Institute Of Technology,Durgapur
India
http://priyanka-nit.blogspot.com/
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