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