multiset.h

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// Debugging multiset implementation -*- C++ -*-

// Copyright (C) 2003, 2004, 2005
// 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_MULTISET_H
#define _GLIBCXX_DEBUG_MULTISET_H 1

#include <debug/safe_sequence.h>
#include <debug/safe_iterator.h>
#include <utility>

namespace __gnu_debug_def
{
  template<typename _Key, typename _Compare = std::less<_Key>,
       typename _Allocator = std::allocator<_Key> >
    class multiset
    : public _GLIBCXX_STD::multiset<_Key, _Compare, _Allocator>,
      public __gnu_debug::_Safe_sequence<multiset<_Key, _Compare, _Allocator> >
    {
      typedef _GLIBCXX_STD::multiset<_Key, _Compare, _Allocator> _Base;
      typedef __gnu_debug::_Safe_sequence<multiset> _Safe_base;

    public:
      // types:
      typedef _Key                   key_type;
      typedef _Key                   value_type;
      typedef _Compare                   key_compare;
      typedef _Compare                   value_compare;
      typedef _Allocator                 allocator_type;
      typedef typename _Base::reference              reference;
      typedef typename _Base::const_reference        const_reference;

      typedef __gnu_debug::_Safe_iterator<typename _Base::iterator, multiset>
      iterator;
      typedef __gnu_debug::_Safe_iterator<typename _Base::const_iterator,
                      multiset> const_iterator;

      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 std::reverse_iterator<iterator>        reverse_iterator;
      typedef std::reverse_iterator<const_iterator>  const_reverse_iterator;

      // 23.3.3.1 construct/copy/destroy:
      explicit multiset(const _Compare& __comp = _Compare(),
            const _Allocator& __a = _Allocator())
      : _Base(__comp, __a) { }

      template<typename _InputIterator>
        multiset(_InputIterator __first, _InputIterator __last,
         const _Compare& __comp = _Compare(),
         const _Allocator& __a = _Allocator())
    : _Base(__gnu_debug::__check_valid_range(__first, __last), __last,
        __comp, __a) { }

      multiset(const multiset<_Key,_Compare,_Allocator>& __x)
      : _Base(__x), _Safe_base() { }

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

      ~multiset() { }

      multiset<_Key,_Compare,_Allocator>&
      operator=(const multiset<_Key,_Compare,_Allocator>& __x)
      {
    *static_cast<_Base*>(this) = __x;
    this->_M_invalidate_all();
    return *this;
      }

      using _Base::get_allocator;

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

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

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

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

      reverse_iterator
      rbegin()
      { return reverse_iterator(end()); }

      const_reverse_iterator
      rbegin() const
      { return const_reverse_iterator(end()); }

      reverse_iterator
      rend()
      { return reverse_iterator(begin()); }

      const_reverse_iterator
      rend() const
      { return const_reverse_iterator(begin()); }

      // capacity:
      using _Base::empty;
      using _Base::size;
      using _Base::max_size;

      // modifiers:
      iterator
      insert(const value_type& __x)
      { return iterator(_Base::insert(__x), this); }

      iterator
      insert(iterator __position, const value_type& __x)
      {
    __glibcxx_check_insert(__position);
    return iterator(_Base::insert(__position.base(), __x), this);
      }

      template<typename _InputIterator>
      void
      insert(_InputIterator __first, _InputIterator __last)
      {
    __glibcxx_check_valid_range(__first, __last);
    _Base::insert(__first, __last);
      }

      void
      erase(iterator __position)
      {
    __glibcxx_check_erase(__position);
    __position._M_invalidate();
    _Base::erase(__position.base());
      }

      size_type
      erase(const key_type& __x)
      {
    std::pair<iterator, iterator> __victims = this->equal_range(__x);
    size_type __count = 0;
    while (__victims.first != __victims.second)
    {
      iterator __victim = __victims.first++;
      __victim._M_invalidate();
      _Base::erase(__victim.base());
      ++__count;
    }
    return __count;
      }

      void
      erase(iterator __first, iterator __last)
      {
    // _GLIBCXX_RESOLVE_LIB_DEFECTS
    // 151. can't currently clear() empty container
    __glibcxx_check_erase_range(__first, __last);
    while (__first != __last)
    this->erase(__first++);
      }

      void
      swap(multiset<_Key,_Compare,_Allocator>& __x)
      {
    _Base::swap(__x);
    this->_M_swap(__x);
      }

      void
      clear()
      { this->erase(begin(), end()); }

      // observers:
      using _Base::key_comp;
      using _Base::value_comp;

      // multiset operations:
      iterator
      find(const key_type& __x)
      { return iterator(_Base::find(__x), this); }

      // _GLIBCXX_RESOLVE_LIB_DEFECTS
      // 214. set::find() missing const overload
      const_iterator
      find(const key_type& __x) const
      { return const_iterator(_Base::find(__x), this); }

      using _Base::count;

      iterator
      lower_bound(const key_type& __x)
      { return iterator(_Base::lower_bound(__x), this); }

      // _GLIBCXX_RESOLVE_LIB_DEFECTS
      // 214. set::find() missing const overload
      const_iterator
      lower_bound(const key_type& __x) const
      { return const_iterator(_Base::lower_bound(__x), this); }

      iterator
      upper_bound(const key_type& __x)
      { return iterator(_Base::upper_bound(__x), this); }

      // _GLIBCXX_RESOLVE_LIB_DEFECTS
      // 214. set::find() missing const overload
      const_iterator
      upper_bound(const key_type& __x) const
      { return const_iterator(_Base::upper_bound(__x), this); }

      std::pair<iterator,iterator>
      equal_range(const key_type& __x)
      {
    typedef typename _Base::iterator _Base_iterator;
    std::pair<_Base_iterator, _Base_iterator> __res =
        _Base::equal_range(__x);
    return std::make_pair(iterator(__res.first, this),
                  iterator(__res.second, this));
      }

      // _GLIBCXX_RESOLVE_LIB_DEFECTS
      // 214. set::find() missing const overload
      std::pair<const_iterator,const_iterator>
      equal_range(const key_type& __x) const
      {
    typedef typename _Base::const_iterator _Base_iterator;
    std::pair<_Base_iterator, _Base_iterator> __res =
        _Base::equal_range(__x);
    return std::make_pair(const_iterator(__res.first, this),
                  const_iterator(__res.second, this));
      }

      _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 _Key, typename _Compare, typename _Allocator>
    inline bool
    operator==(const multiset<_Key,_Compare,_Allocator>& __lhs,
           const multiset<_Key,_Compare,_Allocator>& __rhs)
    { return __lhs._M_base() == __rhs._M_base(); }

  template<typename _Key, typename _Compare, typename _Allocator>
    inline bool
    operator!=(const multiset<_Key,_Compare,_Allocator>& __lhs,
           const multiset<_Key,_Compare,_Allocator>& __rhs)
    { return __lhs._M_base() != __rhs._M_base(); }

  template<typename _Key, typename _Compare, typename _Allocator>
    inline bool
    operator<(const multiset<_Key,_Compare,_Allocator>& __lhs,
          const multiset<_Key,_Compare,_Allocator>& __rhs)
    { return __lhs._M_base() < __rhs._M_base(); }

  template<typename _Key, typename _Compare, typename _Allocator>
    inline bool
    operator<=(const multiset<_Key,_Compare,_Allocator>& __lhs,
           const multiset<_Key,_Compare,_Allocator>& __rhs)
    { return __lhs._M_base() <= __rhs._M_base(); }

  template<typename _Key, typename _Compare, typename _Allocator>
    inline bool
    operator>=(const multiset<_Key,_Compare,_Allocator>& __lhs,
           const multiset<_Key,_Compare,_Allocator>& __rhs)
    { return __lhs._M_base() >= __rhs._M_base(); }

  template<typename _Key, typename _Compare, typename _Allocator>
    inline bool
    operator>(const multiset<_Key,_Compare,_Allocator>& __lhs,
          const multiset<_Key,_Compare,_Allocator>& __rhs)
    { return __lhs._M_base() > __rhs._M_base(); }

  template<typename _Key, typename _Compare, typename _Allocator>
    void
    swap(multiset<_Key,_Compare,_Allocator>& __x,
     multiset<_Key,_Compare,_Allocator>& __y)
    { return __x.swap(__y); }
} // namespace __gnu_debug_def

#endif

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