Re: [LI] C Programming problem

[Shourya Sarcar <sarcar@xxxxxxxx>]

sudheer@xxxxxxxxxxxxx wrote:
> 
> On 4 Nov 1999, Vimal Mathew wrote:
> 
> > -
> > main()
> > {
> >       int i;
> >
> >       printf("Should appear only once");
> >       for (i = 0; i<10 ;i++) fork();
> 
> Hi,
> 
> i have a doubt regarding fork(). Even if i modify the value of 'i'
> (or any variable declared in parent) in the child and
> if i try to print the address of 'i' ,
> both child and parent shows the same address. Why is that.
> Is it because both parent and child uses same virtual address space.
> If so how it can correctly access the addressed variable(whether child
> or parent)
> 
> Please clarify
> 
> sudheer
> 
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-- 
Hi Vimal !
	This is because fork creates an identical copy of the parent processes
and what you see as the address of a variable is within THAT process'
address space not the global memory .

HTH
Regards
Shourya
  
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Shourya Sarcar
Student
Department of Computer Science and Engineering
Jadavpur University
Calcutta, India 700 032

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