gcc/testsuite/c-c++-common/Wswitch-unreachable-3.c

   1 /* { dg-do compile } */
   2
   3 extern void f (int *);
   4
   5 void
   6 g (int i)
   7 {
   8   switch (i)
   9     {
  10       int a[3];
  11       __builtin_memset (a, 0, sizeof a); /* { dg-warning "statement will never be executed" } */
  12
  13     default:
  14       f (a);
  15     }
  16
  17   switch (i)
  18     {
  19       int a[3];
  20       int b[3];
  21       int c[3];
  22       b[1] = 60; /* { dg-warning "statement will never be executed" } */
  23
  24     default:
  25       f (a);
  26       f (b);
  27       f (c);
  28     }
  29 }