Need help!

[RainbroDash]

I'm doing this project for class and it requires that the variable never hits 1. The variable also either goes up by 1, or down by 1 every time you do something.
So for example it can go :
-2 -1 0 2 3 4 . . .

I have no idea how to make that work. Please help!
Also I'mm using C++.

[vlad from moscow]

What does "you do something" mean? And what does "the variable either goes up or down" mean?

[RainbroDash]

If someone chose option "A" the variable will go up 1.
If someone chose option "B" the variable will go down 1.
It depends on what the user chooses.

[vlad from moscow]

And what is the problem?

[RainbroDash]

The variable can never be the number 1. Never. So if the variable is 0 at the moment, and I chose option "A" it has to go to 2, if I do it again it goes to 3. Now, if I chose option "B" it has to go to 2, again, it has to go back 0.

[vlad from moscow]

So what?

[RainbroDash]

How do I have the variable never touch 1. That's my problem.

[giblit]

Have you invested into a switch?
Sounds to me like

initialize variable
loop
-input
-change variable
--if variable is equal to 1 change again
-restart loop
quit program

[RainbroDash]

I have not, and this sounds like my solution. Thank you!

[vlad from moscow]

int theVariable = 0;
char c;


do
{
   std::cout << "Variable is equal to " << theVariable << std::endl << std::endl;

   std::cout << "Enter A to increase the variable, B to decrease it or Q to quit: ";

   std::cin > c;


   switch ( toupper( c ) )
   {
      case 'A':
         theVariable += 1 + !theVariable;
         break;

      case 'B':
         theVariable -= 1 + ( theVariable == 2 );
         break;
   }
} while ( c != 'Q' );