1 // { dg-do compile { target c++11 } }
2 
3 // Copyright (C) 2008-2019 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 // NB: This file is for testing type_traits with NO OTHER INCLUDES.
21 
22 #include <type_traits>
23 
24 namespace std
25 {
26   typedef int test_type1;
27   typedef int& test_type2;
28   typedef double test_type3;
29   typedef float test_type4;
30   typedef void test_type5;
31   typedef const void test_type6;
32 
33   template struct common_type<>;
34   template struct common_type<test_type1>;
35   template struct common_type<test_type1, test_type2>;
36   template struct common_type<test_type1, test_type2, test_type3>;
37   template struct common_type<test_type1, test_type2, test_type3, test_type4>;
38 
39   template struct common_type<test_type5>;
40   template struct common_type<test_type5, test_type6>;
41 }
42