Little help with this if statement

[daduke40]

I trying to make it so letter1 and letter2 must be c, C,q or Q, but this code is not working because basically when I have a c, its not a q or a Q so the if statement would take into place. What code would I put in that would check for all 4 instances?

 
if (letter1 != 'c' || letter1 != 'C' || letter1 != 'q' || letter1 != 'Q')
    {
        cout << "AYE" <<endl;
        x = 0 ;
        x = 0; 
    }
    if (letter2 != 'c' || letter2 != 'C' || letter2 != 'q' || time_period2 != 'Q' )
    {
        cout << "AYE" <<endl;
        x = 0
        y = 0; 
    }
 

-Jeff

[Laharl]

You've got the wrong logical operator. You don't want it to be OR, since that returns true if one of the statements is true. You only want it to return true if both are true. What logical operator is that?