Question:
main()
{
char str[] = "hai friends";
char *p,*p1;
p = str;
p1=p;
while(*p != 's')
{
++*p++;
}
printf(" %s",p1);
}
http://codepad.org/24hmvzP5
Ans: ibj!gsjfoes
On Thu, Jun 16, 2011 at 9:24 AM, sunny agrawal <sunny816.i...@gmail.com>wrote:
> @Arpit
> Thanks to Bruce Eckel :D
>
>
> On Thu, Jun 16, 2011 at 9:00 PM, Arpit Sood <soodfi...@gmail.com> wrote:
>
>> @sunny thanks, that post did clear the confusion.
>>
>>
>> On Thu, Jun 16, 2011 at 8:17 PM, Navneet Gupta <navneetn...@gmail.com>wrote:
>>
>>> Then i would suggest you give the original reference in such cases for
>>> still better understanding :)
>>> Be it a book or a website.
>>>
>>>
>>> On Thu, Jun 16, 2011 at 8:13 PM, sunny agrawal
>>> <sunny816.i...@gmail.com>wrote:
>>>
>>>> yes copy pasting the exact thing :)
>>>> for better understanding :)
>>>>
>>>> On Thu, Jun 16, 2011 at 8:06 PM, Navneet Gupta
>>>> <navneetn...@gmail.com>wrote:
>>>>
>>>>> @Sunny, it is good that you follow Bruce Eckel, but copy pasting the
>>>>> exact thing? :)
>>>>>
>>>>>
>>>>> On Thu, Jun 16, 2011 at 7:34 PM, keyan karthi <
>>>>> keyankarthi1...@gmail.com> wrote:
>>>>>
>>>>>> "hi friends" is a string literal.. ie the string "hi friends" is
>>>>>> stored somewhere and a pointer to its base address is returned to
>>>>>> pointer p
>>>>>> at the time of initialization... u can always make use of this pointer to
>>>>>> traverse / access the "literal" but u cant "alter tat" in the code, u r
>>>>>> trying to do a "++" operation, which throws a seg fault....
>>>>>>
>>>>>>
>>>>>> On Thu, Jun 16, 2011 at 2:16 PM, Kamakshii Aggarwal <
>>>>>> kamakshi...@gmail.com> wrote:
>>>>>>
>>>>>>> i still din't get the solution..please explain..
>>>>>>>
>>>>>>> On 6/16/11, LALIT SHARMA <lks.ru...@gmail.com> wrote:
>>>>>>> > ++*p++
>>>>>>> > ==>
>>>>>>> > ++(*p++) ,
>>>>>>> > increments the value stored at p , and also increments p .
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> > On Thu, Jun 16, 2011 at 1:10 PM, sunny agrawal
>>>>>>> > <sunny816.i...@gmail.com>wrote:
>>>>>>> >
>>>>>>> >> The place where strict constness is not enforced is with character
>>>>>>> >> array literals. You can say
>>>>>>> >> char* cp = "howdy";
>>>>>>> >> and the compiler will accept it without complaint. This is
>>>>>>> >> technically an error because a character array literal (“howdy” in
>>>>>>> >> this case) is created by the compiler as a constant character
>>>>>>> array,
>>>>>>> >> and the result of the quoted character array is its starting
>>>>>>> address in
>>>>>>> >> memory. Modifying any of the characters in the array is a runtime
>>>>>>> >> error, although not all compilers enforce this correctly.
>>>>>>> >> So character array literals are actually constant character
>>>>>>> arrays. Of
>>>>>>> >> course, the compiler lets you get away with treating them as
>>>>>>> nonconst
>>>>>>> >> because there’s so much existing C code that relies on this.
>>>>>>> >> However, if you try to change the values in a character array
>>>>>>> literal,
>>>>>>> >> the behavior is undefined, although it will probably work on many
>>>>>>> >> machines.
>>>>>>> >> If you want to be able to modify the string, put it in an array:
>>>>>>> >> char cp[] = "howdy";
>>>>>>> >> Since compilers often don’t enforce the difference you won’t be
>>>>>>> >> reminded to use this latter form and so the point becomes rather
>>>>>>> >> subtle.
>>>>>>> >>
>>>>>>> >>
>>>>>>> >> On Thu, Jun 16, 2011 at 12:59 PM, amit kumar
>>>>>>> >> <amitthecoo...@gmail.com>wrote:
>>>>>>> >>
>>>>>>> >>> //kk
>>>>>>> >>> //In place of
>>>>>>> >>>
>>>>>>> >>> char *p="hai friends",*p1;
>>>>>>> >>> if i declare as
>>>>>>> >>> char p[]="hai friends";
>>>>>>> >>> char *p1;
>>>>>>> >>> //then ??
>>>>>>> >>>
>>>>>>> >>>
>>>>>>> >>> On Thu, Jun 16, 2011 at 8:16 AM, DIPANKAR DUTTA <
>>>>>>> >>> dutta.dipanka...@gmail.com> wrote:
>>>>>>> >>>
>>>>>>> >>>> It's ok..
>>>>>>> >>>>
>>>>>>> >>>> char *p="hai friends"...not correct....
>>>>>>> >>>>
>>>>>>> >>>> bcz you did allocate memory for that string but assiging poiter
>>>>>>> to the
>>>>>>> >>>> base address.. from where gcc will get the bse address of that
>>>>>>> string
>>>>>>> >>>> when u
>>>>>>> >>>> r not actually allocate memory for it? thus it generate SIGSEG
>>>>>>> signal
>>>>>>> >>>> and
>>>>>>> >>>> give invalid memory address...ie. segmentation fault
>>>>>>> >>>> use malloc or use
>>>>>>> >>>> char p[]="..";
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>> On Thu, Jun 16, 2011 at 4:49 AM, DK <divyekap...@gmail.com>
>>>>>>> wrote:
>>>>>>> >>>>
>>>>>>> >>>>> Gives me a SEGFAULT on gcc.
>>>>>>> >>>>> Probably due to undefined behaviour.
>>>>>>> >>>>>
>>>>>>> >>>>> --
>>>>>>> >>>>> DK
>>>>>>> >>>>>
>>>>>>> >>>>> http://twitter.com/divyekapoor
>>>>>>> >>>>> http://www.divye.in
>>>>>>> >>>>>
>>>>>>> >>>>> --
>>>>>>> >>>>> You received this message because you are subscribed to the
>>>>>>> Google
>>>>>>> >>>>> Groups "Algorithm Geeks" group.
>>>>>>> >>>>> To view this discussion on the web visit
>>>>>>> >>>>> https://groups.google.com/d/msg/algogeeks/-/QVAjKMQiWvoJ.
>>>>>>> >>>>>
>>>>>>> >>>>> To post to this group, send email to
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>>>>>>> >>>>> http://groups.google.com/group/algogeeks?hl=en.
>>>>>>> >>>>>
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>> --
>>>>>>> >>>> Thanks and Regards,
>>>>>>> >>>> ------------------------------
>>>>>>> >>>> *DIPANKAR DUTTA*
>>>>>>> >>>> Visiting Research Scholar
>>>>>>> >>>> Dept of Computing,
>>>>>>> >>>> Macquarie University, Sydney, Australia
>>>>>>> >>>> ph.no-+61 2 98509079 ( Mon-Fri 10:15-7:00) Sydney time
>>>>>>> >>>> email: dipankar.du...@mq.edu.au
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>>
>>>>>>> >>>> --
>>>>>>> >>>> You received this message because you are subscribed to the
>>>>>>> Google
>>>>>>> >>>> Groups
>>>>>>> >>>> "Algorithm Geeks" group.
>>>>>>> >>>> To post to this group, send email to algogeeks@googlegroups.com
>>>>>>> .
>>>>>>> >>>> To unsubscribe from this group, send email to
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>>>>>>> >>>> For more options, visit this group at
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>>>>>>> >>>>
>>>>>>> >>>
>>>>>>> >>> --
>>>>>>> >>> You received this message because you are subscribed to the
>>>>>>> Google Groups
>>>>>>> >>> "Algorithm Geeks" group.
>>>>>>> >>> To post to this group, send email to algogeeks@googlegroups.com.
>>>>>>> >>> To unsubscribe from this group, send email to
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>>>>>>> >>> For more options, visit this group at
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>>>>>>> >>>
>>>>>>> >>
>>>>>>> >>
>>>>>>> >>
>>>>>>> >> --
>>>>>>> >> Sunny Aggrawal
>>>>>>> >> B-Tech IV year,CSI
>>>>>>> >> Indian Institute Of Technology,Roorkee
>>>>>>> >>
>>>>>>> >>
>>>>>>> >> --
>>>>>>> >> You received this message because you are subscribed to the Google
>>>>>>> Groups
>>>>>>> >> "Algorithm Geeks" group.
>>>>>>> >> To post to this group, send email to algogeeks@googlegroups.com.
>>>>>>> >> To unsubscribe from this group, send email to
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>>>>>>> >> For more options, visit this group at
>>>>>>> >> http://groups.google.com/group/algogeeks?hl=en.
>>>>>>> >>
>>>>>>> >
>>>>>>> >
>>>>>>> >
>>>>>>> > --
>>>>>>> > Lalit Kishore Sharma,
>>>>>>> >
>>>>>>> > IIIT Allahabad (Amethi Capmus),
>>>>>>> > 6th Sem.
>>>>>>> >
>>>>>>> > --
>>>>>>> > You received this message because you are subscribed to the Google
>>>>>>> Groups
>>>>>>> > "Algorithm Geeks" group.
>>>>>>> > To post to this group, send email to algogeeks@googlegroups.com.
>>>>>>> > To unsubscribe from this group, send email to
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>>>>>>> > For more options, visit this group at
>>>>>>> > http://groups.google.com/group/algogeeks?hl=en.
>>>>>>> >
>>>>>>> >
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Regards,
>>>>>>> Kamakshi
>>>>>>> kamakshi...@gmail.com
>>>>>>>
>>>>>>> --
>>>>>>> You received this message because you are subscribed to the Google
>>>>>>> Groups "Algorithm Geeks" group.
>>>>>>> To post to this group, send email to algogeeks@googlegroups.com.
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>>>>>>> For more options, visit this group at
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>>>>>>>
>>>>>>>
>>>>>> --
>>>>>> You received this message because you are subscribed to the Google
>>>>>> Groups "Algorithm Geeks" group.
>>>>>> To post to this group, send email to algogeeks@googlegroups.com.
>>>>>> To unsubscribe from this group, send email to
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>>>>>> For more options, visit this group at
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>>>>>>
>>>>>
>>>>>
>>>>>
>>>>> --
>>>>> --Navneet
>>>>>
>>>>> --
>>>>> You received this message because you are subscribed to the Google
>>>>> Groups "Algorithm Geeks" group.
>>>>> To post to this group, send email to algogeeks@googlegroups.com.
>>>>> To unsubscribe from this group, send email to
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>>>>> For more options, visit this group at
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>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> Sunny Aggrawal
>>>> B-Tech IV year,CSI
>>>> Indian Institute Of Technology,Roorkee
>>>>
>>>> --
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>>>>
>>>
>>>
>>>
>>> --
>>> --Navneet
>>>
>>> --
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>>>
>>
>>
>>
>> --
>> Regards,
>> Arpit Sood
>>
>> --
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>>
>
>
>
> --
> Sunny Aggrawal
> B-Tech IV year,CSI
> Indian Institute Of Technology,Roorkee
>
> --
> You received this message because you are subscribed to the Google Groups
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> algogeeks+unsubscr...@googlegroups.com.
> For more options, visit this group at
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>
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