1 // { dg-do compile { target c++11 } } 2 3 // 2011-05-19 Paolo Carlini <paolo.carlini@oracle.com> 4 // 5 // Copyright (C) 2011-2020 Free Software Foundation, Inc. 6 // 7 // This file is part of the GNU ISO C++ Library. This library is free 8 // software; you can redistribute it and/or modify it under the 9 // terms of the GNU General Public License as published by the 10 // Free Software Foundation; either version 3, or (at your option) 11 // any later version. 12 13 // This library is distributed in the hope that it will be useful, 14 // but WITHOUT ANY WARRANTY; without even the implied warranty of 15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 // GNU General Public License for more details. 17 18 // You should have received a copy of the GNU General Public License along 19 // with this library; see the file COPYING3. If not see 20 // <http://www.gnu.org/licenses/>. 21 22 // Tuple 23 24 #include <tuple> 25 26 using namespace std; 27 28 static_assert(is_same<tuple_element<0, const tuple<double, void, int>>::type, 29 const double>::value, "Error"); 30 static_assert(is_same<tuple_element<1, volatile tuple<short, void>>::type, 31 volatile void>::value, "Error"); 32 static_assert(is_same<tuple_element<2, const volatile tuple<float, 33 char, int>>::type, const volatile int>::value, "Error"); 34