gcc/testsuite/gcc.dg/cpp/trad/argcount.c

   1 /* Test that we correctly complain about an invalid number of macro
   2    arguments.  */
   3
   4 /* { dg-do preprocess } */
   5
   6 #define f(x) x
   7 #define g(x, y) x y
   8 #define h()
   9
  10 f();            /* { dg-bogus "requires 1" "no arg is 1 empty arg" } */
  11 f( );           /* { dg-bogus "macro" "1 arg to 1 param macro" } */
  12 f(1,);          /* { dg-error "passed 2" "2 args to 1 param macro" } */
  13 f(1,2);         /* { dg-error "passed 2" "2 args to 1 param macro" } */
  14 h();            /* { dg-bogus "macro" "no arg to 1 param macro" } */
  15 h( );           /* { dg-error "passed 1" "1 arg to 0 param macro" } */
  16 h(1,2);         /* { dg-error "passed 2" "2 args to 0 param macro" } */
  17 g();            /* { dg-error "requires 2" "0 args to 2 param macro" } */
  18 g( );           /* { dg-error "requires 2" "1 args to 2 param macro" } */
  19 g( ,2);         /* { dg-bogus "requires 2" "2 args to 2 param macro" } */
  20 g(,);           /* { dg-bogus "requires 2" "2 args to 2 param macro" } */
  21 g(1,2,3);       /* { dg-error "passed 3" "3 args to 2 param macro" } */