Yes, it's UB.
For such ques, try to run it on ideone.
It will give a warning if any operation is not standard.
http://ideone.com/bJBGl

 <http://ideone.com/bJBGl>

On Sun, Jul 31, 2011 at 1:38 AM, aditi garg <aditi.garg.6...@gmail.com>wrote:

> it would be undefined...
>
> On Sun, Jul 31, 2011 at 1:34 AM, Kamakshii Aggarwal <kamakshi...@gmail.com
> > wrote:
>
>> 3.it is same as b=b+1;
>>
>>
>> On Sun, Jul 31, 2011 at 1:32 AM, aseem garg <ase.as...@gmail.com> wrote:
>>
>>> int b=2;b=b++;
>>> b=???
>>>
>>> Plz explain..
>>> Aseem
>>>
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>>
>>
>>
>> --
>> Regards,
>> Kamakshi
>> kamakshi...@gmail.com
>>
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>
>
>
> --
> Aditi Garg
> Undergraduate Student
> Electronics & Communication Divison
> NETAJI SUBHAS INSTITUTE OF TECHNOLOGY
> Sector 3, Dwarka
> New Delhi
>
>
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