1 // { dg-do compile }
2 // { dg-options "-Wstrict-aliasing=2 -fstrict-aliasing" }
3 
4 // Copyright (C) 2002 Free Software Foundation, Inc.
5 // Contributed by Nathan Sidwell 29 Sep 2002 <nathan@codesourcery.com>
6 
7 // 8083. warn about odd casts
8 
9 typedef int YYSTYPE;
10 typedef struct tDefEntry
11 {
12   unsigned t;
13 
14 } tDefEntry;
15 struct incomplete;
16 
17 
18 YYSTYPE
addSibMacro(YYSTYPE list)19  addSibMacro(
20          YYSTYPE  list )
21  {
22      tDefEntry** ppT   = (tDefEntry**)&list; // { dg-warning "type-punned pointer will" "" }
23 
24      struct incomplete *p = (struct incomplete *)&list; // { dg-warning "type-punning to incomplete" "" }
25 
26      return list;
27  }
28 
29