On Wed, Jun 18, 2008 at 6:54 PM, vaibhav khatavkar <
[EMAIL PROTECTED]> wrote:
> Hi Wang Yu ,
>
> I saw ur code ...
>
>
>>
>>
>> char
>> *p;
>>
>> p =
>> 0;
>>
>> *printf("%s",
>> p);
>>
>> printf("\n"); *
>>
>>
> In ur first code snippet "%s" prints string located at p .. and thats null
> .. so we get output null ... (Note that : there are 2 printf statements)
>
>
>>
>> The out put is *(null)*
>>
>
> Now when u changed it like this ...
>
>> But, if I change into:
>>
>> #include
>> <stdio.h>
>>
>>
>> int
>> main()
>>
>> {
>>
>>
>>
>> char
>> *p;
>>
>> p =
>> 0;
>>
>> * printf("%s\n", p); *
>>
>>
>> return
>> 0;
>>
>> }
>>
>> The output will be* Segment fault*!
>>
>
> The segmentation fault comes just because in printf statement u have
> written "%s\n" .. compiler is unable to resolve it ... when u add a space
> between %s and \n the output is null and not segmentation fault ..
>
>>
But why the complier is unable to resolve it when p is null? and it
works when add a space after it?
>
>> I don't know why....
>> Thanks!
>> --
>> National Research Center for Intelligent Computing Systems
>> Institute of Computing Technology, Chinese Academy of Sciences
>
>
>
>
> --
> with regards,
> vaibhav
--
National Research Center for Intelligent Computing Systems
Institute of Computing Technology, Chinese Academy of Sciences
