// { dg-options "-std=gnu++0x" }// Copyright (C) 2007, 2009 Free Software Foundation, Inc.//// This file is part of the GNU ISO C++ Library. This library is free// software; you can redistribute it and/or modify it under the// terms of the GNU General Public License as published by the// Free Software Foundation; either version 3, or (at your option)// any later version.// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the// GNU General Public License for more details.// You should have received a copy of the GNU General Public License along// with this library; see the file COPYING3. If not see// <http://www.gnu.org/licenses/>.// NOTE: This makes use of the fact that we know how moveable// is implemented on tuple. If the implementation changed// this test may begin to fail.#include <tuple>#include <utility>#include <testsuite_hooks.h>int main(){bool test __attribute__((unused)) = true;std::tuple<int, double> a(1, 2.0), b;b = std::move(a);VERIFY( std::get<0>(b) == 1 && std::get<1>(b) == 2.0 );VERIFY( std::get<0>(a) == 1 && std::get<1>(a) == 2.0 );std::tuple<int, double> c(std::move(b));VERIFY( std::get<0>(c) == 1 && std::get<1>(c) == 2.0 );VERIFY( std::get<0>(b) == 1 && std::get<1>(b) == 2.0 );return 0;}