libstdc++-v3/testsuite/20_util/unique_ptr/assign/48635.cc

   1 // { dg-options "-std=gnu++0x" }
   2
   3 // Copyright (C) 2011-2014 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 #include <memory>
  21 #include <testsuite_hooks.h>
  22
  23 struct Deleter
  24 {
  25   Deleter() = default;
  26   Deleter(const Deleter&) = default;
  27   Deleter(Deleter&&) = default;
  28
  29   Deleter&
  30   operator=(const Deleter&)
  31   {
  32     bool test __attribute__((unused)) = true;
  33     VERIFY( true );
  34     return *this;
  35   }
  36
  37   Deleter&
  38   operator=(Deleter&&)
  39   {
  40     bool test __attribute__((unused)) = true;
  41     VERIFY( false );
  42     return *this;
  43   }
  44
  45   template<class T>
  46     void
  47     operator()(T*) const { }
  48 };
  49
  50 struct DDeleter : Deleter { };
  51
  52 // libstdc++/48635
  53 void test01()
  54 {
  55   Deleter d;
  56
  57   std::unique_ptr<int, Deleter&> p1(nullptr, d), p2(nullptr, d);
  58   p2 = std::move(p1);
  59
  60   DDeleter dd;
  61
  62   std::unique_ptr<int, DDeleter&> p1t(nullptr, dd);
  63   std::unique_ptr<int, Deleter&> p2t(nullptr, d);
  64   p2t = std::move(p1t);
  65
  66   std::unique_ptr<int[], Deleter&> p1a(nullptr, d), p2a(nullptr, d);
  67   p2a = std::move(p1a);
  68
  69   std::unique_ptr<int[], DDeleter&> p1at(nullptr, dd);
  70   std::unique_ptr<int[], Deleter&> p2at(nullptr, d);
  71   p2at = std::move(p1at);
  72 }
  73
  74 int main()
  75 {
  76   test01();
  77   return 0;
  78 }