1  /* { dg-do compile } */
       2  /* { dg-options "-std=gnu90 -pedantic-errors -Wc90-c99-compat" } */
       3  
       4  _Bool b; /* { dg-error "ISO C90 does not support boolean types" } */
       5  _Complex double c = __builtin_complex (0.0, 0.0); /* { dg-error "ISO C90 does not support complex types" } */
       6  long long l; /* { dg-error "ISO C90 does not support .long long." } */
       7  struct A { int i; char a[]; }; /* { dg-error "ISO C90 does not support flexible array members" } */
       8  struct { long int b: 2; } s; /* { dg-error "type of bit-field .b. is a GCC extension" } */
       9  const const int i; /* { dg-error "duplicate .const." } */
      10  volatile volatile v; /* { dg-error "duplicate .volatile." } */
      11  
      12  struct S { int a[2]; };
      13  extern struct S foo (void);
      14  
      15  #define V(v, ...) (v, __VA_ARGS) /* { dg-error "anonymous variadic macros were introduced in C99" } */
      16  
      17  enum { E, }; /* { dg-error "comma at end of enumerator list" } */
      18  
      19  void fn1 (char [*]); /* { dg-error "ISO C90 does not support .\\\[\\\*\\\]. array declarators" } */
      20  
      21  void
      22  fn2 (char x[static 4]) /* { dg-error "ISO C90 does not support .static. or type qualifiers" } */
      23  {
      24    int i = (int) { 1 }; /* { dg-error "ISO C90 forbids compound literals" } */
      25    struct A a = { .i = 3 }; /* { dg-error "ISO C90 forbids specifying subobject to initialize" } */
      26  }
      27  
      28  void
      29  fn3 (int n)
      30  {
      31    n = 3;
      32    int i; /* { dg-error "ISO C90 forbids mixed declarations and code" } */
      33  }
      34  
      35  void
      36  fn4 (int n)
      37  {
      38    n = 3;
      39    __extension__ int i; /* { dg-error "ISO C90 forbids mixed declarations and code" } */
      40  }
      41  
      42  void
      43  fn5 (void)
      44  {
      45    (foo ()).a[0]; /* { dg-error "ISO C90 forbids subscripting non-lvalue array" } */
      46  }
      47  
      48  #define F(a) a
      49  
      50  void
      51  fn6 (void)
      52  {
      53    F(); /* { dg-error "invoking macro F argument" } */
      54  }
      55  
      56  void fn7 (int n, int a[n]); /* { dg-error "ISO C90 forbids variable length array .a." } */