gcc/testsuite/gcc.dg/Wcxx-compat-4.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wc++-compat" } */
   3 enum E1 { A, B, C };
   4 enum E2 { D, E, F };
   5
   6 enum E1 g1;
   7 enum E2 g2;
   8
   9 void
  10 f1 ()
  11 {
  12   int a;
  13   int d;
  14   enum E1 e1;
  15   enum E2 e2;
  16   a = A;
  17   a = !B;
  18   d = E;
  19   e1 = A;
  20   e1 = D;               /* { dg-warning "invalid in C\[+\]\[+\]" } */
  21   e1 = 0;               /* { dg-warning "invalid in C\[+\]\[+\]" } */
  22   e1 = (enum E1) 0;
  23   e1 = (enum E2) 0;     /* { dg-warning "invalid in C\[+\]\[+\]" } */
  24   e1 = e2;              /* { dg-warning "invalid in C\[+\]\[+\]" } */
  25   e1 = g1;
  26   e1 = g2;              /* { dg-warning "invalid in C\[+\]\[+\]" } */
  27   e2 = A;               /* { dg-warning "invalid in C\[+\]\[+\]" } */
  28   e2 = D;
  29 }
  30
  31 struct s { enum E1 e1 : 3; };
  32
  33 void
  34 f2 (struct s sv)
  35 {
  36   sv.e1 = A;
  37   sv.e1 = D;            /* { dg-warning "invalid in C\[+\]\[+\]" } */
  38   g1 = sv.e1;
  39   g2 = sv.e1;           /* { dg-warning "invalid in C\[+\]\[+\]" } */
  40 }
  41
  42 void
  43 f3 (struct s *pv)
  44 {
  45   pv->e1 = A;
  46   pv->e1 = D;           /* { dg-warning "invalid in C\[+\]\[+\]" } */
  47   g1 = pv->e1;
  48   g2 = pv->e1;          /* { dg-warning "invalid in C\[+\]\[+\]" } */
  49 }