tests/pp/11.c

   1 #define D1(s, ...) s
   2 #define D2(s, ...) s D1(__VA_ARGS__)
   3 #define D3(s, ...) s D2(__VA_ARGS__)
   4 #define D4(s, ...) s D3(__VA_ARGS__)
   5
   6 D1(a)
   7 D2(a, b)
   8 D3(a, b, c)
   9 D4(a, b, c, d)
  10
  11 x D4(a, b, c, d) y
  12 x D4(a, b, c) y
  13 x D4(a, b) y
  14 x D4(a) y
  15 x D4() y
  16
  17 #define GNU_COMMA(X,Y...) X,## Y
  18
  19 x GNU_COMMA(A,B,C) y
  20 x GNU_COMMA(A,B) y
  21 x GNU_COMMA(A) y
  22 x GNU_COMMA() y
  23
  24 #define __sun_attr___noreturn__ __attribute__((__noreturn__))
  25 #define ___sun_attr_inner(__a) __sun_attr_##__a
  26 #define __sun_attr__(__a) ___sun_attr_inner __a
  27 #define __NORETURN __sun_attr__((__noreturn__))
  28 __NORETURN
  29 #define X(...)
  30 #define Y(...)  1 __VA_ARGS__ 2
  31 Y(X X() ())
  32
  33 #define DDD(A, B) D_ ## B ## _D_ ## A
  34 #define CCC(X, ...) DDD(X, ##__VA_ARGS__)
  35 /* must be D_B_D_A (not D_B _D_A) */
  36 CCC(A,B)