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

   1 /* This test script is part of GDB, the GNU debugger.
   2
   3    Copyright 2006, 2007, 2008 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
  19 /* Author: Paul N. Hilfinger, AdaCore Inc. */
  20
  21 struct Parent {
  22   Parent (int id0) : id(id0) { }
  23   int id;
  24 };
  25
  26 struct Child : public Parent {
  27   Child (int id0) : Parent(id0) { }
  28 };
  29
  30 int f1(Parent& R)
  31 {
  32   return R.id;                  /* Set breakpoint marker3 here.  */
  33 }
  34
  35 int f2(Child& C)
  36 {
  37   return f1(C);                 /* Set breakpoint marker2 here.  */
  38 }
  39
  40 struct OtherParent {
  41   OtherParent (int other_id0) : other_id(other_id0) { }
  42   int other_id;
  43 };
  44
  45 struct MultiChild : public Parent, OtherParent {
  46   MultiChild (int id0) : Parent(id0), OtherParent(id0 * 2) { }
  47 };
  48
  49 int mf1(OtherParent& R)
  50 {
  51   return R.other_id;
  52 }
  53
  54 int mf2(MultiChild& C)
  55 {
  56   return mf1(C);
  57 }
  58
  59 int main(void)
  60 {
  61   Child Q(42);
  62   Child& QR = Q;
  63
  64   #ifdef usestubs
  65      set_debug_traps();
  66      breakpoint();
  67   #endif
  68
  69   /* Set breakpoint marker1 here.  */
  70
  71   f2(Q);
  72   f2(QR);
  73
  74   MultiChild MQ(53);
  75   MultiChild& MQR = MQ;
  76
  77   mf2(MQ);                      /* Set breakpoint MQ here.  */
  78 }