1 // { dg-do compile { target c++11 } }
2 //
3 // Copyright (C) 2011-2019 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 //
21 // NB: This file is for testing type_traits with NO OTHER INCLUDES.
22
23 #include <type_traits>
24
test01()25 void test01()
26 {
27 using namespace std;
28
29 enum E1 : unsigned { };
30 enum E2 : char { };
31 enum class E3 { };
32 enum class E4 : unsigned char { c = 1 };
33 enum class E5 : int { a = -1, b = 1 };
34 enum class E6 : long { c = __LONG_MAX__ };
35
36 static_assert(is_same<underlying_type<E1>::type, unsigned>::value, "Error");
37 static_assert(is_same<underlying_type<E2>::type, char>::value, "Error");
38 static_assert(is_same<underlying_type<E3>::type, int>::value, "Error");
39 static_assert(is_same<underlying_type<E4>::type,
40 unsigned char>::value, "Error");
41 static_assert(is_same<underlying_type<E5>::type, int>::value, "Error");
42 static_assert(is_same<underlying_type<E6>::type, long>::value, "Error");
43 }
44