gdb/testsuite/gdb.cp/arg-reference.cc

/* This testcase is part of GDB, the GNU debugger.

   Copyright (C) 2007-2018 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

class Obj
{
public:
  Obj ();
  Obj (const Obj &);
  ~Obj ();
  int var;
};

int foo (Obj arg)
{
  arg.var++;
  return arg.var;
}

int main()
{
  Obj obj;

  return 0;	/* initialized */
}

Obj::Obj ()
{
  var = 1;
}

Obj::~Obj ()
{
}