1  /* Test for non-lvalue arrays decaying to pointers: in C99 only.
       2     Test various ways of producing non-lvalue arrays.  */
       3  /* Origin: Joseph Myers <jsm28@cam.ac.uk> */
       4  /* { dg-do compile } */
       5  /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
       6  
       7  struct s { char c[17]; };
       8  
       9  struct s x;
      10  
      11  struct s a, b, c;
      12  int d;
      13  
      14  #define ASSERT(v, a)	char v[((a) ? 1 : -1)]
      15  
      16  ASSERT (p, sizeof (x.c) == 17);
      17  ASSERT (q, sizeof (0, x.c) == sizeof (char *));
      18  ASSERT (r0, sizeof ((d ? b : c).c) == 17);
      19  ASSERT (r1, sizeof ((d, b).c) == 17);
      20  ASSERT (r2, sizeof ((a = b).c) == 17);
      21  /* The non-lvalue array decays to a pointer in C99.  */
      22  ASSERT (s0, sizeof (0, (d ? b : c).c) == sizeof (char *)); /* { dg-bogus "array" "bad non-lvalue array handling" } */
      23  ASSERT (s0, sizeof (0, (d, b).c) == sizeof (char *)); /* { dg-bogus "array" "bad non-lvalue array handling" } */
      24  ASSERT (s0, sizeof (0, (a = b).c) == sizeof (char *)); /* { dg-bogus "array" "bad non-lvalue array handling" } */