gcc/testsuite/gcc.dg/c99-tag-2.c

   1 /* Test for handling of tags.  A struct defined in an inner scope does
   2    not match one declared in an outer scope.  */
   3 /* Origin: Joseph Myers <jsm@polyomino.org.uk> */
   4 /* { dg-do compile } */
   5 /* { dg-options "-std=iso9899:1999 -pedantic-errors" } */
   6
   7 struct s;
   8 struct t { struct s *p; } x;
   9
  10 void
  11 f (void)
  12 {
  13   /* This is a different struct s from the outer one.  */
  14   struct s { int a; } y;
  15   x.p = &y; /* { dg-error "incompatible" } */
  16 }