libstdc++-v3/testsuite/20_util/bind/move.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 #include <functional>
  21 #include <testsuite_hooks.h>
  22
  23 // PR libstdc++/45924
  24
  25 struct f
  26 {
  27   f() : i(0) { }
  28   f(f&& r) : i(1) { r.i = -1; }
  29   f(const f&) = delete;
  30   int operator()() { return i; }
  31   int i;
  32 };
  33
  34 void test01()
  35 {
  36   auto b = std::bind(f());
  37   VERIFY( b() == 1 );
  38   auto bc(std::move(b));
  39   VERIFY( bc() == 1 );
  40   VERIFY( b() == -1 );
  41 }
  42
  43 void test02()
  44 {
  45   auto b = std::bind<int>(f());
  46   VERIFY( b() == 1 );
  47   auto bc(std::move(b));
  48   VERIFY( bc() == 1 );
  49   VERIFY( b() == -1 );
  50 }
  51
  52 int main()
  53 {
  54   test01();
  55   test02();
  56   return 0;
  57 }
  58