Do while scoop error

[Hashimatsu]

I always forget how to do this the correct way, and always end up whith the same error. Its a simple problem, and I'm sure the solution is very obvious.

int main()
{
    do
    {
        int foo = baz();    // return value

        switch(foo)
        {
            case 1:
                //...
                break;
            case 2:
                //...
                break;
            //...
            default:
                //...

        }//END switch

    }while(foo != 0);    //END do while    <-ERROR

}//END main 

Error:

'foo' was not declared in this scope

I know variables only survives inside the scope, but how do I get pass this problem?

The baz() function is a menu which I want to be displayed using the do while loop. And the return value (the menu choice) should be tested in the switch...

[MrHutch]

foo is declared inside of the scope of the do-while loop.
That is to say that it's lifetime is confined to the {} of the loop.

Either move it so that it's above to do command or pick another while condition.

[Hashimatsu]

Thank you iHutch105