1  /* Test diagnostics for bad or doubtful casts.  Test with no special
       2     options.  */
       3  /* Origin: Joseph Myers <joseph@codesourcery.com> */
       4  /* { dg-do compile } */
       5  /* { dg-options "-std=gnu99" } */
       6  
       7  struct s { int a; } sv;
       8  union u { int a; } uv;
       9  int i;
      10  long l;
      11  char c;
      12  void *p;
      13  float fv;
      14  
      15  void
      16  f (void)
      17  {
      18    (int []) p; /* { dg-error "cast specifies array type" } */
      19    (int ()) p; /* { dg-error "cast specifies function type" } */
      20    (struct s) sv;
      21    (union u) uv;
      22    (struct s) i; /* { dg-error "conversion to non-scalar type requested" } */
      23    (union u) i;
      24    (union u) l; /* { dg-error "cast to union type from type not present in union" } */
      25    (int) sv; /* { dg-error "aggregate value used where an integer was expected" } */
      26    (int) uv; /* { dg-error "aggregate value used where an integer was expected" } */
      27    (float) sv; /* { dg-error "aggregate value used where a floating-point was expected" } */
      28    (float) uv; /* { dg-error "aggregate value used where a floating-point was expected" } */
      29    (_Complex double) sv; /* { dg-error "aggregate value used where a complex was expected" } */
      30    (_Complex double) uv; /* { dg-error "aggregate value used where a complex was expected" } */
      31    (void *) sv; /* { dg-error "cannot convert to a pointer type" } */
      32    (void *) uv; /* { dg-error "cannot convert to a pointer type" } */
      33    (_Bool) sv; /* { dg-error "used struct type value where scalar is required" } */
      34    (_Bool) uv; /* { dg-error "used union type value where scalar is required" } */
      35    (void) sv;
      36    (const void) uv;
      37    (void *) c; /* { dg-warning "cast to pointer from integer of different size" } */
      38    (void *) (char) 1;
      39    (char) p; /* { dg-warning "cast from pointer to integer of different size" } */
      40    (char) (void *) 1; /* { dg-warning "cast from pointer to integer of different size" } */
      41  }