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      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(
     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'}}
     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 }
     33