gcc-4_8-branch/gcc/testsuite/c-c++-common/Wunused-var-14.c

   1 /* PR c/50179 */
   2 /* { dg-options "-Wunused" } */
   3 /* { dg-do compile } */
   4
   5 void bar (int, ...);
   6
   7 char *
   8 foo (void)
   9 {
  10   bar (1, (__extension__ ({ static char b[2]; b[0] = 1; b; })));
  11   bar (1, ({ static char c[2]; c[0] = 1; c; }));
  12   return ({ static char d[2]; d[0] = 1; d; });
  13 }