1 /* This testcase is part of GDB, the GNU debugger.
2 
3    Copyright 2003-2020 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 
18 struct A
19 {
20   virtual ~A ();
21   int a1;
22 };
23 
~A()24 A::~A()
25 {
26   a1 = 800;
27 }
28 
29 struct B : public A
30 {
31   virtual ~B ();
32   int b1;
33   int b2;
34 };
35 
~B()36 B::~B()
37 {
38   a1 = 900;
39   b1 = 901;
40   b2 = 902;
41 }
42 
43 struct C : public B
44 {
45   A *c1;
46   A *c2;
47 };
48 
49 /* Use a typedef for the baseclass, with a virtual method, to exercise
50    gnu-v3-abi.c:gnuv3_dynamic_class recursion.  It's important that the
51    class itself have no name to make sure the typedef makes it through
52    to the recursive call.  */
53 typedef class {
54  public:
55   /* This class has no members as gcc 4.9.x doesn't emit the debug info
56      for them.  */
get()57   virtual int get () { return 42; }
58 } Dbase;
59 
60 class D : public Dbase
61 {
62  public:
63   int d1;
64 };
65 
66 // Stop the compiler from optimizing away data.
refer(A *)67 void refer (A *)
68 {
69   ;
70 }
71 
72 struct empty {};
73 
74 // Stop the compiler from optimizing away data.
refer(empty *)75 void refer (empty *)
76 {
77   ;
78 }
79 
main(void)80 int main (void)
81 {
82   A alpha, *aap, *abp, *acp;
83   B beta, *bbp;
84   C gamma;
85   D delta;
86   empty e;
87   A &aref (alpha);
88 
89   alpha.a1 = 100;
90   beta.a1 = 200; beta.b1 = 201; beta.b2 = 202;
91   gamma.c1 = 0; gamma.c2 = (A *) ~0UL;
92   delta.d1 = 400;
93 
94   aap = &alpha; refer (aap);
95   abp = &beta;  refer (abp);
96   bbp = &beta;  refer (bbp);
97   acp = &gamma; refer (acp);
98   refer (&e);
99 
100   return 0;  // marker return 0
101 } // marker close brace
102