@Siddharam: Presumably you meant int a=10,b=20. But the next statement
violates the sequence point rule, which says that no variable can be
assigned more than one value between sequence points. As such, the
program is non-standard, and the results are undefined. Google can
find you additional details about the sequence point rule.
Dave
On Aug 25, 11:05 pm, siddharam suresh <siddharam....@gmail.com> wrote:
> gives an error as b is undeclared.
> BTW this prog swaps 2 number.
>
> Thank you,
> Siddharam
>
> On Fri, Aug 26, 2011 at 9:28 AM, SuDhir mIsHra
> <sudhir08.mis...@gmail.com>wrote:
>
>
>
> > main()
>
> > {
>
> > int a=10,20;
>
> > a^=b^=a^=b;
>
> > printf("%d\n %d\n",a,b);
>
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