class2.cc revision 1.3 
1/* This testcase is part of GDB, the GNU debugger.
2
3   Copyright 2003-2015 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 3 of the License, or
8   (at your option) any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
17
18struct A
19{
20  virtual ~A ();
21  int a1;
22};
23
24A::~A()
25{
26  a1 = 800;
27}
28
29struct B : public A
30{
31  virtual ~B ();
32  int b1;
33  int b2;
34};
35
36B::~B()
37{
38  a1 = 900;
39  b1 = 901;
40  b2 = 902;
41}
42
43struct C : public B
44{
45  A *c1;
46  A *c2;
47};
48
49// Stop the compiler from optimizing away data.
50void refer (A *)
51{
52  ;
53}
54
55struct empty {};
56
57// Stop the compiler from optimizing away data.
58void refer (empty *)
59{
60  ;
61}
62
63int main (void)
64{
65  A alpha, *aap, *abp, *acp;
66  B beta, *bbp;
67  C gamma;
68  empty e;
69  A &aref (alpha);
70
71  alpha.a1 = 100;
72  beta.a1 = 200; beta.b1 = 201; beta.b2 = 202;
73  gamma.c1 = 0; gamma.c2 = (A *) ~0UL;
74
75  aap = &alpha; refer (aap);
76  abp = &beta;  refer (abp);
77  bbp = &beta;  refer (bbp);
78  acp = &gamma; refer (acp);
79  refer (&e);
80
81  return 0;  // marker return 0
82} // marker close brace
83