And as I have asked...

Does that really matter?

For twenty variables is it really going to bring the system down?


>As has been explained...
>
>with DEFINEs, the value is substituted at compile time. With variables, it's done at runtime. So, your runtime is faster and consumes less memory.
>
>>If I defined a variable in my main program as a constant (MY_CONSTANT = 10) then there is only one place I need to change it too. Just not getting the real difference here that actually makes a difference in development. I always thought they were something special, but they are just variables that dont change value. If I treat them as constants, then they are constants. What am I missing?