validation/preprocessor2.c

   1 /*
   2  * This one we happen to get right.
   3  *
   4  * It should result in a simple
   5  *
   6  *      a + b
   7  *
   8  * for a proper preprocessor.
   9  */
  10 #define TWO a, b
  11
  12 #define UNARY(x) BINARY(x)
  13 #define BINARY(x, y) x + y
  14
  15 UNARY(TWO)