gcc/testsuite/gcc.dg/c99-compare-incomplete-2.c

   1 /* Test comparisons of pointers to complete and incomplete types are
   2    diagnosed in C99 mode: -pedantic-errors.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-std=c99 -pedantic-errors" } */
   5
   6 int
   7 f (int (*p)[], int (*q)[3])
   8 {
   9   return p < q; /* { dg-error "complete and incomplete" } */
  10 }
  11
  12 int
  13 f2 (int (*p)[], int (*q)[3])
  14 {
  15   return p <= q; /* { dg-error "complete and incomplete" } */
  16 }
  17
  18 int
  19 f3 (int (*p)[], int (*q)[3])
  20 {
  21   return p > q; /* { dg-error "complete and incomplete" } */
  22 }
  23
  24 int
  25 f4 (int (*p)[], int (*q)[3])
  26 {
  27   return p >= q; /* { dg-error "complete and incomplete" } */
  28 }
  29
  30 int
  31 g (int (*p)[], int (*q)[3])
  32 {
  33   return q < p; /* { dg-error "complete and incomplete" } */
  34 }
  35
  36 int
  37 g2 (int (*p)[], int (*q)[3])
  38 {
  39   return q <= p; /* { dg-error "complete and incomplete" } */
  40 }
  41
  42 int
  43 g3 (int (*p)[], int (*q)[3])
  44 {
  45   return q > p; /* { dg-error "complete and incomplete" } */
  46 }
  47
  48 int
  49 g4 (int (*p)[], int (*q)[3])
  50 {
  51   return q >= p; /* { dg-error "complete and incomplete" } */
  52 }