Pointers?

[Warrior2089]

We all know a pointer's main function is to hold the address of another variable. But a thought that just came into my mind: does a pointer variable have its own address within the memory or no?

[helios]

Yes.

#include <iostream>

int main(){
    int a=0;
    int *b=&a;
    std::cout <<*b<<std::endl
        <<b<<std::endl
        <<&b<<std::endl;
    return 0;
}

[hannes]

sure, you can even have a pointer who refers to another pointer. And the another pointers refers to the adress of the first pointer

[chrisname]

You can have 3 levels of pointing I think. I had a pointer to an array (which is a pointer) of C strings (which are pointers).

[R0mai]

Chris : I don't think there is a (that low) limit for pointer-pointers.

[mspy2plus]

Of course it does. Pointers are variables, and all variables have an address in the RAM.

[kbw]

... except those optimised into registers.