gdb/testsuite/gdb.cp/pr17132.cc

   1 /* This testcase is part of GDB, the GNU debugger.
   2
   3    Copyright 2014-2022 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 /* One could use unique_ptr instead, but that requires a GCC which can
  20    support "-std=c++11".  */
  21
  22 template <typename T>
  23 class smart_ptr
  24 {
  25 public:
  26   smart_ptr (T *obj) : _obj (obj) { }
  27   ~smart_ptr () { delete _obj; }
  28
  29   T *operator-> ();
  30
  31 private:
  32   T *_obj;
  33 };
  34
  35 template <typename T>
  36 T *
  37 smart_ptr<T>::operator-> ()
  38 {
  39   return _obj;
  40 }
  41
  42 class A
  43 {
  44 public:
  45   virtual int func ();
  46 };
  47
  48 int
  49 A::func ()
  50 {
  51   return 3;
  52 }
  53
  54 int
  55 main ()
  56 {
  57   A *a_ptr = 0;
  58   smart_ptr<A> a (new A);
  59
  60   return a->func();  /* Break here  */
  61 }