gdb/testsuite/gdb.compile/compile-cplus-virtual.cc

   1 /* Copyright 2015-2020 Free Software Foundation, Inc.
   2
   3    This program is free software; you can redistribute it and/or modify
   4    it under the terms of the GNU General Public License as published by
   5    the Free Software Foundation; either version 3 of the License, or
   6    (at your option) any later version.
   7
   8    This program is distributed in the hope that it will be useful,
   9    but WITHOUT ANY WARRANTY; without even the implied warranty of
  10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11    GNU General Public License for more details.
  12
  13    You should have received a copy of the GNU General Public License
  14    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  15
  16 struct A
  17 {
  18   virtual int doit () { return 1; }
  19   virtual int doit3 () { return -3; }
  20   virtual int doit2 () = 0;
  21 };
  22
  23 struct B : virtual A
  24 {
  25   int doit () { return 2; }
  26   int doit2 () { return 22; }
  27 };
  28
  29 struct C : virtual A
  30 {
  31   int doit () { return 3; }
  32   int doit2 () { return 33; }
  33 };
  34
  35 struct D : B, C
  36 {
  37   int doit () { return 4; }
  38   int doit2 () { return 44; }
  39 };
  40
  41 int
  42 main ()
  43 {
  44   int var = 1234;
  45   B b;
  46   C c;
  47   D d;
  48   A *ap = &d;
  49
  50   var = (b.doit () + c.doit () + d.doit () + d.doit3 ()
  51          + ap->doit () + ap->doit2 ()); // break here
  52
  53   return 0;
  54 }