@all
http://en.wikipedia.org/wiki/Sequence_point
here is the reason why it is compiler dependent.
On Fri, Aug 12, 2011 at 1:55 AM, sagar pareek <sagarpar...@gmail.com> wrote:
> : :))
>
>
> On Fri, Aug 12, 2011 at 1:54 AM, aditi garg <aditi.garg.6...@gmail.com>wrote:
>
>> @sagar.: Now i get it:)
>> Thanks a ton :)
>>
>> On Fri, Aug 12, 2011 at 1:51 AM, sagar pareek <sagarpar...@gmail.com>wrote:
>>
>>> @additi
>>> in gcc whenever compiler loads first two x's then before multiplying it
>>> increments x twice for each pre increment
>>> like if we have
>>> x=3;
>>> c=++x*x++;
>>> here
>>> it will be done as
>>> c=4*4
>>> which is same as
>>> c=x++*++x;
>>>
>>> is it clear?
>>>
>>> On Fri, Aug 12, 2011 at 1:38 AM, Avenged <nitee...@gmail.com> wrote:
>>>
>>>> Like he said earlier , its a compiler implementation.
>>>>
>>>> On Aug 12, 12:55 am, aditi garg <aditi.garg.6...@gmail.com> wrote:
>>>> > @sagar: why doesnt it take place sequentially like 4*5*6*7??
>>>> > why do the frst two increments take place like dat??
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > On Fri, Aug 12, 2011 at 1:19 AM, sagar pareek <sagarpar...@gmail.com>
>>>> wrote:
>>>> > > told u before
>>>> > > in turbo c it increments all values of x
>>>> > > x=3;
>>>> > > c=7*7*7*7;
>>>> > > c=2401
>>>> >
>>>> > > On Fri, Aug 12, 2011 at 1:16 AM, Puneet Chawla <
>>>> puneetchawla...@gmail.com>wrote:
>>>> >
>>>> > >> In turbo it is showing o/p 2401 again still confused...
>>>> >
>>>> > >> On Fri, Aug 12, 2011 at 1:14 AM, sagar pareek <
>>>> sagarpar...@gmail.com>wrote:
>>>> >
>>>> > >>> ok if we have the scenario like u stated then it will be done in
>>>> gcc as
>>>> > >>> :-
>>>> > >>> x=3;
>>>> > >>> c=5*5*(++x)*(++x);
>>>> > >>> c=25*6*(++x);
>>>> > >>> c=150*7;
>>>> > >>> c=1050;
>>>> >
>>>> > >>> On Fri, Aug 12, 2011 at 1:10 AM, aditi garg <
>>>> aditi.garg.6...@gmail.com>wrote:
>>>> >
>>>> > >>>> @sagar: bt i dint understand how is it done
>>>> > >>>> what if we had something like (++x)*(++x)*(++x)*(++x) thn how wud
>>>> it be
>>>> > >>>> evaluated in gcc?
>>>> > >>>> and since it is giving diff ans on diff compilers that is wat i
>>>> mean by
>>>> > >>>> being undefined...
>>>> >
>>>> > >>>> On Fri, Aug 12, 2011 at 1:05 AM, Puneet Chawla <
>>>> > >>>> puneetchawla...@gmail.com> wrote:
>>>> >
>>>> > >>>>> @Aditi i thnk sagar parteek is right ...in turbo compiler it's
>>>> > >>>>> incrementing and finally max of all values and multiply the
>>>> value means pre
>>>> > >>>>> increment->evaluate->postincrement
>>>> >
>>>> > >>>>> On Fri, Aug 12, 2011 at 1:02 AM, sagar pareek <
>>>> sagarpar...@gmail.com>wrote:
>>>> >
>>>> > >>>>>> well its always depends on compiler to compiler
>>>> > >>>>>> in turbo c it will first increment all x
>>>> > >>>>>> results in
>>>> > >>>>>> c=6*6*6
>>>> > >>>>>> c=216
>>>> >
>>>> > >>>>>> but in gcc it will be as explained by me above
>>>> >
>>>> > >>>>>> On Fri, Aug 12, 2011 at 12:56 AM, aditi garg <
>>>> > >>>>>> aditi.garg.6...@gmail.com> wrote:
>>>> >
>>>> > >>>>>>> i think it wud be undefined...the value is getting modified
>>>> more than
>>>> > >>>>>>> once and hence violating the sequence points rule...plz corect
>>>> me if im
>>>> > >>>>>>> wrong...
>>>> >
>>>> > >>>>>>> On Fri, Aug 12, 2011 at 12:48 AM, Puneet Chawla <
>>>> > >>>>>>> puneetchawla...@gmail.com> wrote:
>>>> >
>>>> > >>>>>>>> In turbo compiler it's o/p is 216 and in dev it's 150..
>>>> > >>>>>>>> Help me out..
>>>> >
>>>> > >>>>>>>> On Fri, Aug 12, 2011 at 12:45 AM, sagar pareek <
>>>> > >>>>>>>> sagarpar...@gmail.com> wrote:
>>>> >
>>>> > >>>>>>>>> after expansion of macro
>>>> > >>>>>>>>> it will be c=(++x)*(++x)*(++x);
>>>> >
>>>> > >>>>>>>>> now it be solved as
>>>> > >>>>>>>>> c= 5*5*(++x);
>>>> > >>>>>>>>> c=25*6;
>>>> > >>>>>>>>> c=150
>>>> >
>>>> > >>>>>>>>> On Fri, Aug 12, 2011 at 12:38 AM, Puneet Chawla <
>>>> > >>>>>>>>> puneetchawla...@gmail.com> wrote:
>>>> >
>>>> > >>>>>>>>>> #define cube(x) (x)*(x)*(x)
>>>> > >>>>>>>>>> main()
>>>> > >>>>>>>>>> {
>>>> > >>>>>>>>>> int x=3,c;
>>>> > >>>>>>>>>> c=cube(++x);
>>>> > >>>>>>>>>> printf("%d",c);
>>>> >
>>>> > >>>>>>>>>> return 0;
>>>> > >>>>>>>>>> }
>>>> >
>>>> > >>>>>>>>>> will anyone please tell me why o/p is 150.?
>>>> >
>>>> > >>>>>>>>>> --
>>>> > >>>>>>>>>> With regards
>>>> > >>>>>>>>>> ............
>>>> > >>>>>>>>>> Puneet Chawla
>>>> >
>>>> > >>>>>>>>>> --
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>>>> >
>>>> > >>>>>>>>> --
>>>> > >>>>>>>>> **Regards
>>>> > >>>>>>>>> SAGAR PAREEK
>>>> > >>>>>>>>> COMPUTER SCIENCE AND ENGINEERING
>>>> > >>>>>>>>> NIT ALLAHABAD
>>>> >
>>>> > >>>>>>>>> --
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>>>> >
>>>> > >>>>>>>> --
>>>> > >>>>>>>> With regards
>>>> > >>>>>>>> ............
>>>> > >>>>>>>> Puneet Chawla
>>>> > >>>>>>>> Computer Engineering Student
>>>> > >>>>>>>> NIT Kurukshetra
>>>> >
>>>> > >>>>>>>> --
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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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>>>> >
>>>> > >>>>>> --
>>>> > >>>>>> **Regards
>>>> > >>>>>> SAGAR PAREEK
>>>> > >>>>>> COMPUTER SCIENCE AND ENGINEERING
>>>> > >>>>>> NIT ALLAHABAD
>>>> >
>>>> > >>>>>> --
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>>>> >
>>>> > >>>>> --
>>>> > >>>>> With regards
>>>> > >>>>> ............
>>>> > >>>>> Puneet Chawla
>>>> > >>>>> Computer Engineering Student
>>>> > >>>>> NIT Kurukshetra
>>>> >
>>>> > >>>>> --
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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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>>>> >
>>>> > >>> --
>>>> > >>> **Regards
>>>> > >>> SAGAR PAREEK
>>>> > >>> COMPUTER SCIENCE AND ENGINEERING
>>>> > >>> NIT ALLAHABAD
>>>> >
>>>> > >>> --
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>>>> >
>>>> > >> --
>>>> > >> With regards
>>>> > >> ............
>>>> > >> Puneet Chawla
>>>> > >> Computer Engineering Student
>>>> > >> NIT Kurukshetra
>>>> >
>>>> > >> --
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>>>> >
>>>> > > --
>>>> > > **Regards
>>>> > > SAGAR PAREEK
>>>> > > COMPUTER SCIENCE AND ENGINEERING
>>>> > > NIT ALLAHABAD
>>>> >
>>>> > > --
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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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>>>>
>>>>
>>>
>>>
>>> --
>>> **Regards
>>> SAGAR PAREEK
>>> COMPUTER SCIENCE AND ENGINEERING
>>> NIT ALLAHABAD
>>>
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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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>>
>
>
>
> --
> **Regards
> SAGAR PAREEK
> COMPUTER SCIENCE AND ENGINEERING
> NIT ALLAHABAD
>
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--
Abhishek Gupta
MCA
NIT Calicut
Kerela
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