// Profiling deque implementation -*- C++ -*-

// Copyright (C) 2009, 2010, 2011 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.

// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
// <http://www.gnu.org/licenses/>.

/** @file profile/deque
 *  This file is a GNU profile extension to the Standard C++ Library.
 */

#ifndef _GLIBCXX_PROFILE_DEQUE
#define _GLIBCXX_PROFILE_DEQUE 1

#include <deque>

namespace std _GLIBCXX_VISIBILITY(default)
{
namespace __profile
{
  /// Class std::deque wrapper with performance instrumentation.
  template<typename _Tp, typename _Allocator = std::allocator<_Tp> >
    class deque
    : public _GLIBCXX_STD_C::deque<_Tp, _Allocator>
    {
      typedef  _GLIBCXX_STD_C::deque<_Tp, _Allocator> _Base;

    public:
      typedef typename _Base::reference             reference;
      typedef typename _Base::const_reference       const_reference;

      typedef typename _Base::iterator             iterator;
      typedef typename _Base::const_iterator       const_iterator;
      typedef typename _Base::reverse_iterator     reverse_iterator;
      typedef typename _Base::const_reverse_iterator const_reverse_iterator;

      typedef typename _Base::size_type             size_type;
      typedef typename _Base::difference_type       difference_type;

      typedef _Tp				    value_type;
      typedef _Allocator			    allocator_type;
      typedef typename _Base::pointer               pointer;
      typedef typename _Base::const_pointer         const_pointer;

      // 23.2.1.1 construct/copy/destroy:
      explicit
      deque(const _Allocator& __a = _Allocator())
      : _Base(__a) { }

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      explicit
      deque(size_type __n)
      : _Base(__n) { }

      deque(size_type __n, const _Tp& __value,
	    const _Allocator& __a = _Allocator())
      : _Base(__n, __value, __a) { }
#else
      explicit
      deque(size_type __n, const _Tp& __value = _Tp(),
	    const _Allocator& __a = _Allocator())
      : _Base(__n, __value, __a) { }
#endif

      template<class _InputIterator>
        deque(_InputIterator __first, _InputIterator __last,
	      const _Allocator& __a = _Allocator())
	: _Base(__first, __last, __a)
        { }

      deque(const deque& __x)
      : _Base(__x) { }

      deque(const _Base& __x)
      : _Base(__x) { }

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      deque(deque&& __x)
      : _Base(std::move(__x))
      { }

      deque(initializer_list<value_type> __l,
	    const allocator_type& __a = allocator_type())
      : _Base(__l, __a) { }
#endif

      ~deque() _GLIBCXX_NOEXCEPT { }

      deque&
      operator=(const deque& __x)
      {
	*static_cast<_Base*>(this) = __x;
	return *this;
      }

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      deque&
      operator=(deque&& __x)
      {
	// NB: DR 1204.
	// NB: DR 675.
	this->clear();
	this->swap(__x);
	return *this;
      }

      deque&
      operator=(initializer_list<value_type> __l)
      {
	*static_cast<_Base*>(this) = __l;
	return *this;
      }
#endif

      template<class _InputIterator>
        void
        assign(_InputIterator __first, _InputIterator __last)
        {
	  _Base::assign(__first, __last);
	}

      void
      assign(size_type __n, const _Tp& __t)
      {
	_Base::assign(__n, __t);
      }

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      void
      assign(initializer_list<value_type> __l)
      {
	_Base::assign(__l);
      }
#endif

      using _Base::get_allocator;

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

      const_iterator
      begin() const _GLIBCXX_NOEXCEPT
      { return const_iterator(_Base::begin()); }

      iterator
      end() _GLIBCXX_NOEXCEPT
      { return iterator(_Base::end()); }

      const_iterator
      end() const _GLIBCXX_NOEXCEPT
      { return const_iterator(_Base::end()); }

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

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

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

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

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      const_iterator
      cbegin() const noexcept
      { return const_iterator(_Base::begin()); }

      const_iterator
      cend() const noexcept
      { return const_iterator(_Base::end()); }

      const_reverse_iterator
      crbegin() const noexcept
      { return const_reverse_iterator(end()); }

      const_reverse_iterator
      crend() const noexcept
      { return const_reverse_iterator(begin()); }
#endif

      // 23.2.1.2 capacity:
      using _Base::size;
      using _Base::max_size;

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      void
      resize(size_type __sz)
      {
	_Base::resize(__sz);
      }

      void
      resize(size_type __sz, const _Tp& __c)
      {
	_Base::resize(__sz, __c);
      }
#else
      void
      resize(size_type __sz, _Tp __c = _Tp())
      {
	_Base::resize(__sz, __c);
      }
#endif

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      using _Base::shrink_to_fit;
#endif

      using _Base::empty;

      // element access:
      reference
      operator[](size_type __n)
      {
	return _M_base()[__n];
      }

      const_reference
      operator[](size_type __n) const
      {
	return _M_base()[__n];
      }

      using _Base::at;

      reference
      front()
      {
	return _Base::front();
      }

      const_reference
      front() const
      {
	return _Base::front();
      }

      reference
      back()
      {
	return _Base::back();
      }

      const_reference
      back() const
      {
	return _Base::back();
      }

      // 23.2.1.3 modifiers:
      void
      push_front(const _Tp& __x)
      {
	_Base::push_front(__x);
      }

      void
      push_back(const _Tp& __x)
      {
	_Base::push_back(__x);
      }

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      void
      push_front(_Tp&& __x)
      { emplace_front(std::move(__x)); }

      void
      push_back(_Tp&& __x)
      { emplace_back(std::move(__x)); }

      template<typename... _Args>
        void
        emplace_front(_Args&&... __args)
	{
	  _Base::emplace_front(std::forward<_Args>(__args)...);
	}

      template<typename... _Args>
        void
        emplace_back(_Args&&... __args)
	{
	  _Base::emplace_back(std::forward<_Args>(__args)...);
	}

      template<typename... _Args>
        iterator
        emplace(iterator __position, _Args&&... __args)
	{
	  typename _Base::iterator __res = _Base::emplace(__position,
					    std::forward<_Args>(__args)...);
	  return iterator(__res);
	}
#endif

      iterator
      insert(iterator __position, const _Tp& __x)
      {
	typename _Base::iterator __res = _Base::insert(__position, __x);
	return iterator(__res);
      }

#ifdef __GXX_EXPERIMENTAL_CXX0X__
      iterator
      insert(iterator __position, _Tp&& __x)
      { return emplace(__position, std::move(__x)); }

      void
      insert(iterator __p, initializer_list<value_type> __l)
      {
	_Base::insert(__p, __l);
      }
#endif

      void
      insert(iterator __position, size_type __n, const _Tp& __x)
      {
	_Base::insert(__position, __n, __x);
      }

      template<class _InputIterator>
        void
        insert(iterator __position,
	       _InputIterator __first, _InputIterator __last)
        {
	  _Base::insert(__position, __first, __last);
	}

      void
      pop_front()
      {
	_Base::pop_front();
      }

      void
      pop_back()
      {
	_Base::pop_back();
      }

      iterator
      erase(iterator __position)
      {
	if (__position == begin() || __position == end()-1)
	  {
	    return iterator(_Base::erase(__position));
	  }
	else
	  {
	    typename _Base::iterator __res = _Base::erase(__position);
	    return iterator(__res);
	  }
      }

      iterator
      erase(iterator __first, iterator __last)
      {
	// _GLIBCXX_RESOLVE_LIB_DEFECTS
	// 151. can't currently clear() empty container
        return iterator(_Base::erase(__first, __last));
      }

      void
      swap(deque& __x)
      {
	_Base::swap(__x);
      }

      void
      clear() _GLIBCXX_NOEXCEPT
      {
	_Base::clear();
      }

      _Base&
      _M_base() _GLIBCXX_NOEXCEPT       { return *this; }

      const _Base&
      _M_base() const _GLIBCXX_NOEXCEPT { return *this; }
    };

  template<typename _Tp, typename _Alloc>
    inline bool
    operator==(const deque<_Tp, _Alloc>& __lhs,
	       const deque<_Tp, _Alloc>& __rhs)
    { return __lhs._M_base() == __rhs._M_base(); }

  template<typename _Tp, typename _Alloc>
    inline bool
    operator!=(const deque<_Tp, _Alloc>& __lhs,
	       const deque<_Tp, _Alloc>& __rhs)
    { return __lhs._M_base() != __rhs._M_base(); }

  template<typename _Tp, typename _Alloc>
    inline bool
    operator<(const deque<_Tp, _Alloc>& __lhs,
	      const deque<_Tp, _Alloc>& __rhs)
    { return __lhs._M_base() < __rhs._M_base(); }

  template<typename _Tp, typename _Alloc>
    inline bool
    operator<=(const deque<_Tp, _Alloc>& __lhs,
	       const deque<_Tp, _Alloc>& __rhs)
    { return __lhs._M_base() <= __rhs._M_base(); }

  template<typename _Tp, typename _Alloc>
    inline bool
    operator>=(const deque<_Tp, _Alloc>& __lhs,
	       const deque<_Tp, _Alloc>& __rhs)
    { return __lhs._M_base() >= __rhs._M_base(); }

  template<typename _Tp, typename _Alloc>
    inline bool
    operator>(const deque<_Tp, _Alloc>& __lhs,
	      const deque<_Tp, _Alloc>& __rhs)
    { return __lhs._M_base() > __rhs._M_base(); }

  template<typename _Tp, typename _Alloc>
    inline void
    swap(deque<_Tp, _Alloc>& __lhs, deque<_Tp, _Alloc>& __rhs)
    { __lhs.swap(__rhs); }

} // namespace __profile
} // namespace std

#endif
