Why does #define INVALID_VALUE -999; give a syntax error when used?

Question

I am trying to compare to a defined constants in C, and I have simplified my program to the following:

#include \"stdio.h\"
#include \"stdlib.h\"
#define INV         


        

Answer 1

Change macro

from:

#define INVALID_VALUE -999;

to

#define INVALID_VALUE -999

Bye