1 // { dg-do compile { target c++11 } } 2 3 // Copyright (C) 2007-2018 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 17 // along with this library; see the file COPYING3. If not see 18 // <http://www.gnu.org/licenses/>. 19 20 #include <functional> 21 #include <string> 22 #include <system_error> 23 24 // Verify that we can instantiate hash for every required type. 25 template class std::hash<bool>; 26 template class std::hash<char>; 27 template class std::hash<signed char>; 28 template class std::hash<unsigned char>; 29 template class std::hash<char16_t>; 30 template class std::hash<char32_t>; 31 template class std::hash<short>; 32 template class std::hash<int>; 33 template class std::hash<long>; 34 template class std::hash<unsigned short>; 35 template class std::hash<unsigned int>; 36 template class std::hash<unsigned long>; 37 template class std::hash<float>; 38 template class std::hash<double>; 39 template class std::hash<long double>; 40 template class std::hash<void*>; 41 template class std::hash<std::string>; 42 template class std::hash<std::error_code>; 43 #if __cplusplus > 201402L 44 template class std::hash<std::error_condition>; 45 #endif 46 47 #ifdef _GLIBCXX_USE_WCHAR_T 48 template class std::hash<wchar_t>; 49 template class std::hash<std::wstring>; 50 #endif 51 52