[gcc] GCC 4.5.0=>4.5.1

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

-// { dg-options "-std=gnu++0x" }
-// { dg-do compile }
-
-// Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
-//
-// This file is part of the GNU ISO C++ Library.  This library is free
-// software; you can redistribute it and/or modify it under the
-// terms of the GNU General Public License as published by the
-// Free Software Foundation; either version 3, or (at your option)
-// any later version.
-//
-// This library is distributed in the hope that it will be useful,
-// but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-// GNU General Public License for more details.
-//
-// You should have received a copy of the GNU General Public License
-// along with this library; see the file COPYING3.  If not see
-// <http://www.gnu.org/licenses/>.
-
-#include <functional>
-#include <string>
-#include <system_error>
-
-// Verify that we can instantiate hash for every required type.
-template class std::hash<bool>;
-template class std::hash<char>;
-template class std::hash<signed char>;
-template class std::hash<unsigned char>;
-template class std::hash<char16_t>;
-template class std::hash<char32_t>;
-template class std::hash<short>;
-template class std::hash<int>;
-template class std::hash<long>;
-template class std::hash<unsigned short>;
-template class std::hash<unsigned int>;
-template class std::hash<unsigned long>;
-template class std::hash<float>;
-template class std::hash<double>;
-template class std::hash<long double>;
-template class std::hash<void*>;
-template class std::hash<std::string>;
-template class std::hash<std::error_code>;
-
-#ifdef _GLIBCXX_USE_WCHAR_T
-template class std::hash<wchar_t>;
-template class std::hash<std::wstring>;
-#endif
-