1// { dg-options "-std=gnu++14" } 2// { dg-do compile } 3// 4// Copyright (C) 2013-2015 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// 22// NB: This file is for testing type_traits with NO OTHER INCLUDES. 23 24#include <type_traits> 25 26using namespace std; 27 28enum E : long { }; 29 30static_assert( is_same<typename underlying_type<E>::type, 31 underlying_type_t<E>>(), 32 "underlying_type_t" ); 33