clang/test/Preprocessor/macro_arg_directive.c

   1 // RUN: %clang_cc1 %s -fsyntax-only -verify
   2
   3 #define a(x) enum { x }
   4 a(n =
   5 #undef a
   6 #define a 5
   7   a);
   8 _Static_assert(n == 5, "");
   9
  10 #define M(A)
  11 M( // expected-note {{expansion of macro 'M' requested here}}
  12 #pragma pack(pop) // expected-error {{embedding a #pragma directive within macro arguments is not supported}}
  13 )
  14
  15 // header1.h
  16 void fail(const char *);
  17 #define MUNCH(...) \
  18  ({ int result = 0; __VA_ARGS__; if (!result) { fail(#__VA_ARGS__); }; result })
  19
  20 static inline int f(int k) {
  21   return MUNCH( // expected-error {{expected ')'}} expected-note {{to match this '('}} expected-error {{returning 'void'}} expected-note {{expansion of macro 'MUNCH' requested here}}
  22     if (k < 3)
  23       result = 24;
  24     else if (k > 4)
  25       result = k - 4;
  26 }
  27
  28 #include "macro_arg_directive.h" // expected-error {{embedding a #include directive within macro arguments is not supported}}
  29
  30 int g(int k) {
  31   return f(k) + f(k-1));
  32 }