1  /* Test C11 alignment support.  Test invalid code.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "-std=c11 -pedantic-errors" } */
       4  
       5  int a = _Alignof (void (void)); /* { dg-error "function" } */
       6  struct s;
       7  int b = _Alignof (struct s); /* { dg-error "incomplete" } */
       8  int c = _Alignof (void); /* { dg-error "void" } */
       9  int d = _Alignof (a); /* { dg-error "expression" } */
      10  
      11  _Alignas (void (void)) char e; /* { dg-error "function" } */
      12  _Alignas (struct s) char f; /* { dg-error "incomplete" } */
      13  _Alignas (void) char g; /* { dg-error "void" } */
      14  
      15  _Alignas (-__INT_MAX__-1) char h; /* { dg-error "too large|power of 2" } */
      16  _Alignas (-__INT_MAX__) char h2; /* { dg-error "too large|power of 2" } */
      17  _Alignas ((-__INT_MAX__-1)/2) char h3; /* { dg-error "too large|power of 2" } */
      18  _Alignas ((-__INT_MAX__-1)/4) char h4; /* { dg-error "too large|power of 2" } */
      19  _Alignas ((-__INT_MAX__-1)/8) char h5; /* { dg-error "too large|power of 2" } */
      20  _Alignas (-__LONG_LONG_MAX__-1) char i; /* { dg-error "too large|power of 2" } */
      21  _Alignas (-(__LONG_LONG_MAX__-1)/2) char i2; /* { dg-error "too large|power of 2" } */
      22  _Alignas (-(__LONG_LONG_MAX__-1)/4) char i3; /* { dg-error "too large|power of 2" } */
      23  _Alignas (-(__LONG_LONG_MAX__-1)/8) char i4; /* { dg-error "too large|power of 2" } */
      24  _Alignas (-(__LONG_LONG_MAX__-1)/16) char i5; /* { dg-error "too large|power of 2" } */
      25  _Alignas (-1) char j; /* { dg-error "power of 2" } */
      26  _Alignas (-2) char j; /* { dg-error "positive power of 2" } */
      27  _Alignas (3) char k; /* { dg-error "power of 2" } */
      28  
      29  _Alignas ((void *) 1) char k; /* { dg-error "integer constant" } */
      30  int x;
      31  _Alignas (x) char l; /* { dg-error "integer constant" } */
      32  
      33  _Alignas (0) struct s; /* { dg-error "does not redeclare tag" } */
      34  
      35  _Alignas (0) typedef int T; /* { dg-error "alignment specified for typedef" } */
      36  void func (_Alignas (0) int); /* { dg-error "alignment specified for unnamed parameter" } */
      37  void f2 (_Alignas (0) int parm2) {} /* { dg-error "alignment specified for parameter" } */
      38  void
      39  f3 (void)
      40  {
      41    register _Alignas (0) int reg; /* { dg-error "register" } */
      42  }
      43  _Alignas (0) void f4 (void); /* { dg-error "alignment specified for function" } */