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// Debugging hash_set implementation -*- C++ -*-

// Copyright (C) 2003

// 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 2, 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 COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// As a special exception, you may use this file as part of a free software

// library without restriction.  Specifically, if other files instantiate

// templates or use macros or inline functions from this file, or you compile

// this file and link it with other files to produce an executable, this

// file does not by itself cause the resulting executable to be covered by

// the GNU General Public License.  This exception does not however

// invalidate any other reasons why the executable file might be covered by

// the GNU General Public License.

#ifndef _GLIBCXX_DEBUG_HASH_SET_H

#define _GLIBCXX_DEBUG_HASH_SET_H 1

#include <debug/safe_sequence.h>

#include <debug/safe_iterator.h>

namespace __gnu_debug_def

{

  template<typename _Value,

           typename _HashFcn  = __gnu_cxx::hash<_Value>,

           typename _EqualKey = std::equal_to<_Value>,

           typename _Alloc =  std::allocator<_Value> >

    class hash_set

    : public __gnu_cxx::hash_set<_Value, _HashFcn, _EqualKey, _Alloc>,

      public __gnu_debug::_Safe_sequence<hash_set<_Value, _HashFcn, _EqualKey,

                                                  _Alloc> >

    {

      typedef __gnu_cxx::hash_set<_Value, _HashFcn, _EqualKey, _Alloc> _Base;

      typedef __gnu_debug::_Safe_sequence<hash_set> _Safe_base;

    public:

      typedef typename _Base::key_type        key_type;

      typedef typename _Base::value_type      value_type;

      typedef typename _Base::hasher          hasher;

      typedef typename _Base::key_equal       key_equal;

      typedef typename _Base::size_type       size_type;

      typedef typename _Base::difference_type difference_type;

      typedef typename _Base::pointer         pointer;

      typedef typename _Base::const_pointer   const_pointer;

      typedef typename _Base::reference       reference;

      typedef typename _Base::const_reference const_reference;

      typedef __gnu_debug::_Safe_iterator<typename _Base::iterator, hash_set>

                                              iterator;

      typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,

                                          hash_set>

                                              const_iterator;

      typedef typename _Base::allocator_type allocator_type;

      using _Base::hash_funct;

      using _Base::key_eq;

      using _Base::get_allocator;

      hash_set() { }

      explicit hash_set(size_type __n) : _Base(__n) { }

      hash_set(size_type __n, const hasher& __hf) : _Base(__n, __hf) { }

      hash_set(size_type __n, const hasher& __hf, const key_equal& __eql,

               const allocator_type& __a = allocator_type())

      : _Base(__n, __hf, __eql, __a) { }

      template<typename _InputIterator>

        hash_set(_InputIterator __f, _InputIterator __l)

        : _Base(__gnu_debug::__check_valid_range(__f, __l), __l) { }

      template<typename _InputIterator>

        hash_set(_InputIterator __f, _InputIterator __l, size_type __n)

        : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n) { }

      template<typename _InputIterator>

        hash_set(_InputIterator __f, _InputIterator __l, size_type __n,

                 const hasher& __hf)

        : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n, __hf) { }

      template<typename _InputIterator>

        hash_set(_InputIterator __f, _InputIterator __l, size_type __n,

                 const hasher& __hf, const key_equal& __eql,

                 const allocator_type& __a = allocator_type())

        : _Base(__gnu_debug::__check_valid_range(__f, __l), __l, __n, __hf,

                __eql, __a) { }

      hash_set(const _Base& __x) : _Base(__x), _Safe_base() { }

      using _Base::size;

      using _Base::max_size;

      using _Base::empty;

      void

      swap(hash_set& __x)

      {

        _Base::swap(__x);

        this->_M_swap(__x);

      }

      iterator

      begin() const { return iterator(_Base::begin(), this); }

      iterator

      end() const   { return iterator(_Base::end(),   this); }

      std::pair<iterator, bool>

      insert(const value_type& __obj)

      {

        std::pair<typename _Base::iterator, bool> __res =

        _Base::insert(__obj);

        return std::make_pair(iterator(__res.first, this), __res.second);

      }

      template <typename _InputIterator>

        void

        insert(_InputIterator __first, _InputIterator __last)

        {

          __glibcxx_check_valid_range(__first, __last);

          _Base::insert(__first.base(), __last.base());

        }

      std::pair<iterator, bool>

      insert_noresize(const value_type& __obj)

      {

        std::pair<typename _Base::iterator, bool> __res =

        _Base::insert_noresize(__obj);

        return std::make_pair(iterator(__res.first, this), __res.second);

      }

      iterator

      find(const key_type& __key) const

      { return iterator(_Base::find(__key), this); }

      using _Base::count;

      std::pair<iterator, iterator>

      equal_range(const key_type& __key) const

      {

        typedef typename _Base::iterator _Base_iterator;

        std::pair<_Base_iterator, _Base_iterator> __res =

          _Base::equal_range(__key);

        return std::make_pair(iterator(__res.first, this),

                              iterator(__res.second, this));

      }

      size_type

      erase(const key_type& __key)

      {

        iterator __victim(_Base::find(__key), this);

        if (__victim != end())

          return this->erase(__victim), 1;

        else

          return 0;

      }

      void

      erase(iterator __it)

      {

        __glibcxx_check_erase(__it);

        __it._M_invalidate();

        _Base::erase(__it.base());

      }

      void

      erase(iterator __first, iterator __last)

      {

        __glibcxx_check_erase_range(__first, __last);

        for (iterator __tmp = __first; __tmp != __last;)

        {

          iterator __victim = __tmp++;

          __victim._M_invalidate();

        }

        _Base::erase(__first.base(), __last.base());

      }

      void

      clear()

      {

        _Base::clear();

        this->_M_invalidate_all();

      }

      using _Base::resize;

      using _Base::bucket_count;

      using _Base::max_bucket_count;

      using _Base::elems_in_bucket;

      _Base&

      _M_base()       { return *this; }

      const _Base&

      _M_base() const { return *this; }

    private:

      void

      _M_invalidate_all()

      {

        typedef typename _Base::const_iterator _Base_const_iterator;

        typedef __gnu_debug::_Not_equal_to<_Base_const_iterator> _Not_equal;

        this->_M_invalidate_if(_Not_equal(_M_base().end()));

      }

    };

  template<typename _Value, typename _HashFcn, typename _EqualKey,

           typename _Alloc>

    inline bool

    operator==(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __x,

               const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __y)

    { return __x._M_base() == __y._M_base(); }

  template<typename _Value, typename _HashFcn, typename _EqualKey,

           typename _Alloc>

    inline bool

    operator!=(const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __x,

               const hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __y)

    { return __x._M_base() != __y._M_base(); }

  template<typename _Value, typename _HashFcn, typename _EqualKey,

           typename _Alloc>

    inline void

    swap(hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __x,

         hash_set<_Value, _HashFcn, _EqualKey, _Alloc>& __y)

    { __x.swap(__y); }

} // namespace __gnu_debug_def

#endif