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// { dg-options "-std=gnu++0x" }

// { dg-do compile }

//

// Copyright (C) 2011 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/>.

// 

// NB: This file is for testing type_traits with NO OTHER INCLUDES.

#include <type_traits>

void test01()

{

  using namespace std;

  enum E1 : unsigned { };

  enum E2 : char { };

  enum class E3 { };

  enum class E4 : unsigned char { c = 1 };

  enum class E5 : int { a = -1, b = 1 };

  enum class E6 : long { c = __LONG_MAX__ };

  static_assert(is_same<underlying_type<E1>::type, unsigned>::value, "Error");

  static_assert(is_same<underlying_type<E2>::type, char>::value, "Error");

  static_assert(is_same<underlying_type<E3>::type, int>::value, "Error");

  static_assert(is_same<underlying_type<E4>::type,

                        unsigned char>::value, "Error");

  static_assert(is_same<underlying_type<E5>::type, int>::value, "Error");

  static_assert(is_same<underlying_type<E6>::type, long>::value, "Error");

}