gcc/testsuite/gcc.dg/fixits.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-fdiagnostics-show-caret" } */
   3
   4 struct foo { int x; };
   5 union u { int x; };
   6
   7 /* Verify that we issue a hint for "." used with a ptr to a struct.  */
   8
   9 int test_1 (struct foo *ptr)
  10 {
  11   return ptr.x; /* { dg-error "'ptr' is a pointer; did you mean to use '->'?" } */
  12 /* { dg-begin-multiline-output "" }
  13    return ptr.x;
  14              ^
  15              ->
  16    { dg-end-multiline-output "" } */
  17 }
  18
  19 /* Likewise for a ptr to a union.  */
  20
  21 int test_2 (union u *ptr)
  22 {
  23   return ptr.x; /* { dg-error "'ptr' is a pointer; did you mean to use '->'?" } */
  24 /* { dg-begin-multiline-output "" }
  25    return ptr.x;
  26              ^
  27              ->
  28    { dg-end-multiline-output "" } */
  29 }
  30
  31 /* Verify that we don't issue a hint for a ptr to something that isn't a
  32    struct or union.  */
  33
  34 int test_3 (void **ptr)
  35 {
  36   return ptr.x; /* { dg-error "request for member 'x' in something not a structure or union" } */
  37 /* { dg-begin-multiline-output "" }
  38    return ptr.x;
  39              ^
  40    { dg-end-multiline-output "" } */
  41 }