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// { dg-options "-Wno-deprecated" }

// Copyright (C) 2002, 2005, 2007, 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/>.

// hash_map (SGI extension)

#include <cstdlib>

#include <string>

#include <hash_map>

#include <testsuite_hooks.h>

namespace __gnu_cxx

{

  using std::string;

  inline size_t hash_string(const char* s)

  {

    unsigned long h;

    for (h=0; *s; ++s) {

      h = 5*h + *s;

    }

    return size_t(h);

  }

  template<class T> struct hash<T *>

  {

    size_t operator()(const T *const & s) const

      { return reinterpret_cast<size_t>(s); }

  };

  template<> struct hash<string>

  {

    size_t operator()(const string &s) const { return hash_string(s.c_str()); }

  };

  template<> struct hash<const string>

  {

    size_t operator()(const string &s) const { return hash_string(s.c_str()); }

  };

  template<class T1, class T2> struct hash<pair<T1,T2> >

  {

    hash<T1> __fh;

    hash<T2> __sh;

    size_t operator()(const pair<T1,T2> &p) const {

      return __fh(p.first) ^ __sh(p.second);

    }

  };

}

void test01()

{

  const int Size = 5;

  bool test __attribute__((unused)) = true;

  using std::string;

  using std::pair;

  using std::vector;

  using __gnu_cxx::hash_map;

  for (int i = 0; i < 10; i++)

  {

    hash_map<string, int> a;

    hash_map<string, int> b;

    vector<pair<string, int> > contents (Size);

    for (int j = 0; j < Size; j++)

    {

      string s;

      for (int k = 0; k < 10; k++)

      {

        s += 'a' + (rand() % 26);

      }

      contents[j] = make_pair(s,j);

    }

    for (int j = 0; j < Size; j++)

    {

      a[contents[j].first] = contents[j].second;

      int k = Size - 1 - j;

      b[contents[k].first] = contents[k].second;

    }

    VERIFY( a == b );

  }

}

int main()

{

  test01();

  return 0;

}