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 ..
>
> I don't know why....
> Thanks!
> --
> National Research Center for Intelligent Computing Systems
> Institute of Computing Technology, Chinese Academy of Sciences
--
with regards,
vaibhav
