text: //===----------------------------------------------------------------------===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is dual licensed under the MIT and the University of Illinois Open
  // Source Licenses. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  
  // <locale>
  
  // template <class charT> class collate;
  
  // long hash(const charT* low, const charT* high) const;
  
  //   This test is not portable
  
  #include <locale>
  #include <string>
  #include <cassert>
  
  int main()
  {
      std::locale l = std::locale::classic();
      {
          std::string x1("1234");
          std::string x2("12345");
          const std::collate<char>& f = std::use_facet<std::collate<char> >(l);
          assert(f.hash(x1.data(), x1.data() + x1.size())
              != f.hash(x2.data(), x2.data() + x2.size()));
      }
      {
          std::wstring x1(L"1234");
          std::wstring x2(L"12345");
          const std::collate<wchar_t>& f = std::use_facet<std::collate<wchar_t> >(l);
          assert(f.hash(x1.data(), x1.data() + x1.size())
              != f.hash(x2.data(), x2.data() + x2.size()));
      }
  }
  