xref: /aosp_15_r20/external/clang/test/Sema/deref.c (revision 67e74705e28f6214e480b399dd47ea732279e315) 
1*67e74705SXin Li /* RUN: %clang_cc1 -fsyntax-only -verify -std=c90 -pedantic %s
2*67e74705SXin Li  */
3*67e74705SXin Li void
foo(void)4*67e74705SXin Li foo (void)
5*67e74705SXin Li {
6*67e74705SXin Li  struct b;
7*67e74705SXin Li  struct b* x = 0;
8*67e74705SXin Li  struct b* y = &*x;
9*67e74705SXin Li }
10*67e74705SXin Li 
foo2(void)11*67e74705SXin Li void foo2 (void)
12*67e74705SXin Li {
13*67e74705SXin Li  typedef int (*arrayptr)[];
14*67e74705SXin Li  arrayptr x = 0;
15*67e74705SXin Li  arrayptr y = &*x;
16*67e74705SXin Li }
17*67e74705SXin Li 
foo3(void)18*67e74705SXin Li void foo3 (void)
19*67e74705SXin Li {
20*67e74705SXin Li  void* x = 0;
21*67e74705SXin Li  void* y = &*x; /* expected-warning{{address of an expression of type 'void'}} */
22*67e74705SXin Li }
23*67e74705SXin Li 
24*67e74705SXin Li extern const void cv1;
25*67e74705SXin Li 
foo4(void)26*67e74705SXin Li const void *foo4 (void)
27*67e74705SXin Li {
28*67e74705SXin Li   return &cv1;
29*67e74705SXin Li }
30*67e74705SXin Li 
31*67e74705SXin Li extern void cv2;
foo5(void)32*67e74705SXin Li void *foo5 (void)
33*67e74705SXin Li {
34*67e74705SXin Li   return &cv2; /* expected-warning{{address of an expression of type 'void'}} */
35*67e74705SXin Li }
36*67e74705SXin Li 
37*67e74705SXin Li typedef const void CVT;
38*67e74705SXin Li extern CVT cv3;
39*67e74705SXin Li 
foo6(void)40*67e74705SXin Li const void *foo6 (void)
41*67e74705SXin Li {
42*67e74705SXin Li   return &cv3;
43*67e74705SXin Li }
44*67e74705SXin Li 
45