gcc/testsuite/gcc.dg/label-decl-2.c

   1 /* Test diagnostics for label declarations.  Test with -pedantic.  */
   2 /* Origin: Joseph Myers <joseph@codesourcery.com> */
   3 /* { dg-do compile } */
   4 /* { dg-options "-pedantic" } */
   5
   6 typedef int b;
   7
   8 void
   9 f (void)
  10 {
  11   __label__ a, b, c, d; /* { dg-warning "ISO C forbids label declarations" "label decls" } */
  12   __extension__ (void)&&d; /* { dg-error "label 'd' used but not defined" } */
  13   goto c; /* { dg-error "label 'c' used but not defined" } */
  14  a: (void)0;
  15  b: (void)0;
  16 }