libstdc++-v3/testsuite/20_util/function/invoke/move_only.cc

   1 // { dg-do run { target c++11 } }
   2
   3 // Copyright (C) 2009-2020 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 <functional>
  21
  22 struct moveable
  23 {
  24   moveable() = default;
  25   ~moveable() = default;
  26   moveable(const moveable& c) = delete;
  27   moveable& operator=(const moveable&) = delete;
  28   moveable(moveable&&) { }
  29 };
  30
  31 void f1(moveable) { }
  32 void f2(moveable&&) { }
  33 struct { void operator()(moveable&&) { } } f3;
  34
  35 void test01()
  36 {
  37   std::function<void (moveable)> fo1a(f1);
  38   fo1a(moveable());
  39
  40   std::function<void (moveable)> fo2a(f2);
  41   fo2a(moveable());
  42
  43   std::function<void (moveable)> fo3a(f3);
  44   fo3a(moveable());
  45
  46   std::function<void (moveable&&)> fo1b(f1);
  47   fo1b(moveable());
  48
  49   std::function<void (moveable&&)> fo2b(f2);
  50   fo2b(moveable());
  51
  52   std::function<void (moveable&&)> fo3b(f3);
  53   fo3b(moveable());
  54 }
  55
  56 int main()
  57 {
  58   test01();
  59
  60   return 0;
  61 }