1 // { dg-do compile }
2 // { dg-options "-Wno-conversion-null" }
3 // 2001-02-06  Benjamin Kosnik  <bkoz@redhat.com>
4 
5 // Copyright (C) 2001-2013 Free Software Foundation, Inc.
6 //
7 // This file is part of the GNU ISO C++ Library.  This library is free
8 // software; you can redistribute it and/or modify it under the
9 // terms of the GNU General Public License as published by the
10 // Free Software Foundation; either version 3, or (at your option)
11 // any later version.
12 
13 // This library is distributed in the hope that it will be useful,
14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 // GNU General Public License for more details.
17 
18 // You should have received a copy of the GNU General Public License along
19 // with this library; see the file COPYING3.  If not see
20 // <http://www.gnu.org/licenses/>.
21 
22 #include <cstddef>
23 
24 namespace gnu
25 {
26   struct test_type
27   {
28     int i;
29     int j;
30   };
31 
32   // offsetof
33   void test01()
34   {
35     std::size_t i __attribute__((unused)) = offsetof(struct test_type, i);
36 #ifndef offsetof
37     #error "offsetof_must_be_a_macro"
38 #endif
39   }
40 
41   // NULL
42   void test02()
43   {
44     // Must not be (void*)0
45     const int j __attribute__((unused)) = NULL;
46 
47 #ifndef NULL
48     #error "NULL_must_be_a_macro"
49 #endif
50   }
51 }
52