gcc/testsuite/gcc.dg/Wcxx-compat-5.c

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