1  /* This test assumes -fbuiltin and not -fansi to get "index" and "memchr" builtin DECLs.  */
       2  /* { dg-do compile } */
       3  /* { dg-options "" } */
       4  
       5  /* The bug this is testing is that if a new decl conflicts with an
       6     explicit decl, you don't get the "changes type of builtin" message,
       7     but if there was *also* a builtin, you *also* don't get the "previous
       8     declaration" message, leaving you with no clue where the previous
       9     declaration came from.  */
      10  
      11  extern char foo(int,int); /* { dg-message "previous declaration of 'foo'" "note" } */
      12  extern char *index(const char *,int); /* { dg-message "previous declaration of 'index'" "note" } */
      13  
      14  /* This changes the type of "index", which is both a builtin and an
      15     explicit decl.  */
      16  int index; /* { dg-error "redeclared as different kind of symbol" } */
      17  
      18  /* This changes the type of "memchr", which is only a builtin.  */
      19  int memchr; /* { dg-warning "built-in function 'memchr' declared as non-function" } */
      20  
      21  /* This changes the type of "foo", which is only an explicit decl.  */
      22  int foo; /* { dg-error "redeclared as different kind of symbol" } */