libstdc++-v3/testsuite/20_util/unique_ptr/modifiers/43183.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2010-2019 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19
  20 // 20.9.10.2.5 unique_ptr modifiers [unique.ptr.single.modifiers]
  21
  22 #include <memory>
  23 #include <testsuite_hooks.h>
  24
  25 struct D
  26 {
  27   static int count;
  28
  29   void operator()(int* p) const
  30   {
  31     ++count;
  32     delete p;
  33   }
  34 };
  35 int D::count = 0;
  36
  37 void test01()
  38 {
  39   std::unique_ptr<int, D> up;
  40   up.reset();
  41   VERIFY( D::count == 0 );
  42   up.reset(new int);
  43   VERIFY( D::count == 0 );
  44   up.reset(up.get());
  45   VERIFY( D::count == 1 );
  46   up.release();
  47 }
  48
  49 int main()
  50 {
  51   test01();
  52   return 0;
  53 }