Question: Pointer

[Nikoru]

Okay, so I have been doing more and more tutorials and I have been learning alot. However, I had a couple of questions:

#1. Can you use a pointer to change a var of a class?

#2. If you can do the above, could anyone show me an example of: (x = 0; until the pointer changes it to 1)

while(x==1)
          {
           Do Something

          }

Thanks for your guys help.

[Lv0f92yv]

Do you mean can you use a pointer to change the value of a variable that is declared inside a class? Yes.

while ( x == 0 )
{
   int *ptrX = &x; //assuming x is an int here
   *ptrX = 1; //assign 1 to x
} //this now exits, since x!= 0. 

[Nikoru]

Is this: void attack(); a declaration of a function or the calling of a function? Could it be either?

[Archaic]

Is this: void attack(); a declaration of a function or the calling of a function? Could it be either?

It's a declaration.

[Albatross]

It's a declaration as long as it's outside another function. When it's inside a function, it's called a "way too long calling of a function".

-Albatross

[Nikoru]

Does a pointer hange the variable? I know that it gets the address but for all intents and purposes does the old var become the new var?

[Lv0f92yv]

No. A pointer is an alternative way to access data. Using a pointer to reference a variable means that it can change the contents at the address to which it points. Check out the pointer tutorial on this site:

http://www.cplusplus.com/doc/tutorial/pointers/