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
8    "previous declaration was here" message, leaving you with no clue
9    where the previous declaration came from.  */
10 
11 extern char foo(int,int); /* { dg-message "previous declaration of 'foo' was here" } */
12 extern char *index(const char *,int); /* { dg-message "previous declaration of 'index' was here" } */
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" } */
23