gcc/testsuite/gcc.dg/Wswitch-default.c

   1 /* { dg-do compile } */
   2 /* { dg-options "-Wswitch-default" } */
   3
   4 enum e { e1, e2 };
   5
   6 int
   7 foo (int i, int j, enum e ei, enum e ej, enum e ek, enum e el,
   8      enum e em, enum e en, enum e eo, enum e ep)
   9 {
  10   switch (i)
  11     {
  12     case 1: return 1;
  13     case 2: return 2;
  14     } /* { dg-warning "switch missing default case" } */
  15   switch (j)
  16     {
  17     case 3: return 4;
  18     case 4: return 3;
  19     default: break;
  20     }
  21   switch (ei) /* { dg-warning "switch missing default case" } */
  22     {
  23     }
  24   switch (ej)
  25     {
  26     default: break;
  27     }
  28   switch (ek)
  29     {
  30     case e1: return 1;
  31     } /* { dg-warning "switch missing default case" } */
  32   switch (el)
  33     {
  34     case e1: return 1;
  35     default: break;
  36     }
  37   switch (em)
  38     {
  39     case e1: return 1;
  40     case e2: return 2;
  41     } /* { dg-warning "switch missing default case" } */
  42   switch (en)
  43     {
  44     case e1: return 1;
  45     case e2: return 2;
  46     default: break;
  47     }
  48   switch (eo)
  49     {
  50     case e1: return 1;
  51     case e2: return 2;
  52     case 3: return 3;
  53     } /* { dg-warning "switch missing default case" } */
  54   switch (ep)
  55     {
  56     case e1: return 1;
  57     case e2: return 2;
  58     case 3: return 3;
  59     default: break;
  60     }
  61   return 0;
  62 }