Thread: Pointers

Hello, me agian

I was wondering if you can have a variable, address it to two dif pointers, and have a dif number. like for example:



.....
int main()
{
int x;
//address x to two pointers
cin>>x;
//put this value into the x thats in one pointer
cin>>x;
//put this calue into the x thats in the other pointer
return 0;
}




Does that seem possible?

a pointer is just a variable that contains a memory address... it can only point to/contain one address at a time. you can have 2 pointers pointing to the one item, but there's still only one item!

int x = 10;
int* px1 = &x;
int* px2 = &x;

*px1 will always be the same as *px2....

you can write to x using both px1 and px2, but they are both being written to x, and therefore it's only ONE item that's being changed.

you can do this:

int x, y;

int* p = &x;
cin >> *p;
p = &y;
cin >> *p;

and this changes 2 different things with the one pointer.

i hope this helps, it was quite a hard question to answer because the question didn't really make any sense!!

good luck
U.