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

   1 // { dg-do run { target c++11 } }
   2 // { dg-require-effective-target hosted }
   3
   4 // Copyright (C) 2009-2023 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 3, or (at your option)
  10 // any later version.
  11
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING3.  If not see
  19 // <http://www.gnu.org/licenses/>.
  20
  21 #include <functional>
  22
  23 struct moveable
  24 {
  25   moveable() = default;
  26   ~moveable() = default;
  27   moveable(const moveable& c) = delete;
  28   moveable& operator=(const moveable&) = delete;
  29   moveable(moveable&&) { }
  30 };
  31
  32 void f1(moveable) { }
  33 void f2(moveable&&) { }
  34 struct { void operator()(moveable&&) { } } f3;
  35
  36 void test01()
  37 {
  38   std::function<void (moveable)> fo1a(f1);
  39   fo1a(moveable());
  40
  41   std::function<void (moveable)> fo2a(f2);
  42   fo2a(moveable());
  43
  44   std::function<void (moveable)> fo3a(f3);
  45   fo3a(moveable());
  46
  47   std::function<void (moveable&&)> fo1b(f1);
  48   fo1b(moveable());
  49
  50   std::function<void (moveable&&)> fo2b(f2);
  51   fo2b(moveable());
  52
  53   std::function<void (moveable&&)> fo3b(f3);
  54   fo3b(moveable());
  55 }
  56
  57 int main()
  58 {
  59   test01();
  60
  61   return 0;
  62 }