gdb/testsuite/gdb.cp/ref-params.cc

   1 /* This test script is part of GDB, the GNU debugger.
   2
   3    Copyright 2006-2019 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 /* Author: Paul N. Hilfinger, AdaCore Inc. */
  19
  20 struct Parent {
  21   Parent (int id0) : id(id0) { }
  22   int id;
  23 };
  24
  25 struct Child : public Parent {
  26   Child (int id0) : Parent(id0) { }
  27 };
  28
  29 int f1(Parent& R)
  30 {
  31   return R.id;                  /* Set breakpoint marker3 here.  */
  32 }
  33
  34 int f2(Child& C)
  35 {
  36   return f1(C);                 /* Set breakpoint marker2 here.  */
  37 }
  38
  39 struct OtherParent {
  40   OtherParent (int other_id0) : other_id(other_id0) { }
  41   int other_id;
  42 };
  43
  44 struct MultiChild : public Parent, OtherParent {
  45   MultiChild (int id0) : Parent(id0), OtherParent(id0 * 2) { }
  46 };
  47
  48 int mf1(OtherParent& R)
  49 {
  50   return R.other_id;
  51 }
  52
  53 int mf2(MultiChild& C)
  54 {
  55   return mf1(C);
  56 }
  57
  58 int main(void)
  59 {
  60   Child Q(42);
  61   Child& QR = Q;
  62
  63   /* Set breakpoint marker1 here.  */
  64
  65   f2(Q);
  66   f2(QR);
  67
  68   MultiChild MQ(53);
  69   MultiChild& MQR = MQ;
  70
  71   mf2(MQ);                      /* Set breakpoint MQ here.  */
  72 }