Re: unneeded stuff when call

["Andrea 'fwyzard' Bocci" <fwyzard-gcc at libero dot it>]

At 10.05 04/07/2003 +0530, Anirudha wrote:
> i knew from what i read that references in C++ are constant pointers which
> are automatically dereferenced..
> And once a reference is initialized to an object, it cannot be changed to
> refer to another object.
> so something like this shud not work..
> int main()
> {
>      int p=15;
>      int m=10;
>      int &s=p;
>      s=m;
>    }
> on the last line it shud give compile time error.
> But it's compiling as well as running fine in GCC..

You cannot change what the reference "automatic pointer" points to (ie., p, 
in your example), but you can change the value of that variable.
Your example is equivalent to:

int main (void)
{
    int p=15;
    int m=10;
    int * const s=&p;
    *s=m;
}

.fw.