libstdc++-v3/testsuite/20_util/hash/requirements/explicit_instantiation.cc

   1 // { dg-options "-std=gnu++0x" }
   2 // { dg-do compile }
   3
   4 // Copyright (C) 2007, 2008 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License
  18 // along with this library; see the file COPYING.  If not, write to
  19 // the Free Software Foundation, 51 Franklin Street, Fifth Floor,
  20 // Boston, MA 02110-1301, USA.
  21
  22 #include <functional>
  23 #include <string>
  24 #include <system_error>
  25
  26 // Verify that we can instantiate hash for every required type.
  27 template class std::hash<bool>;
  28 template class std::hash<char>;
  29 template class std::hash<signed char>;
  30 template class std::hash<unsigned char>;
  31 template class std::hash<char16_t>;
  32 template class std::hash<char32_t>;
  33 template class std::hash<short>;
  34 template class std::hash<int>;
  35 template class std::hash<long>;
  36 template class std::hash<unsigned short>;
  37 template class std::hash<unsigned int>;
  38 template class std::hash<unsigned long>;
  39 template class std::hash<float>;
  40 template class std::hash<double>;
  41 template class std::hash<long double>;
  42 template class std::hash<void*>;
  43 template class std::hash<std::string>;
  44 template class std::hash<std::error_code>;
  45
  46 #ifdef _GLIBCXX_USE_WCHAR_T
  47 template class std::hash<wchar_t>;
  48 template class std::hash<std::wstring>;
  49 #endif
  50