list.h

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/******************************************************************************
The MIT License(MIT)
 
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
 
Copyright(c) 2014 John Wellbelove
 
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files(the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and / or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions :
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
******************************************************************************/
 
#ifndef ETL_LIST_INCLUDED
#define ETL_LIST_INCLUDED
 
#include "platform.h"
#include "algorithm.h"
#include "iterator.h"
#include "functional.h"
#include "pool.h"
#include "exception.h"
#include "error_handler.h"
#include "debug_count.h"
#include "nullptr.h"
#include "type_traits.h"
#include "algorithm.h"
#include "memory.h"
#include "static_assert.h"
#include "parameter_type.h"
#include "placement_new.h"
#include "initializer_list.h"
 
#include <stddef.h>
 
#include "private/minmax_push.h"
 
//*****************************************************************************
//*****************************************************************************
 
namespace etl
{
  //***************************************************************************
  //***************************************************************************
  class list_exception : public exception
  {
  public:
 
    list_exception(string_type reason_, string_type file_name_, numeric_type line_number_)
      : exception(reason_, file_name_, line_number_)
    {
    }
  };
 
  //***************************************************************************
  //***************************************************************************
  class list_full : public list_exception
  {
  public:
 
    list_full(string_type file_name_, numeric_type line_number_)
      : list_exception(ETL_ERROR_TEXT("list:full", ETL_LIST_FILE_ID"A"), file_name_, line_number_)
    {
    }
  };
 
  //***************************************************************************
  //***************************************************************************
  class list_empty : public list_exception
  {
  public:
 
    list_empty(string_type file_name_, numeric_type line_number_)
      : list_exception(ETL_ERROR_TEXT("list:empty", ETL_LIST_FILE_ID"B"), file_name_, line_number_)
    {
    }
  };
 
  //***************************************************************************
  //***************************************************************************
  class list_iterator : public list_exception
  {
  public:
 
    list_iterator(string_type file_name_, numeric_type line_number_)
      : list_exception(ETL_ERROR_TEXT("list:iterator", ETL_LIST_FILE_ID"C"), file_name_, line_number_)
    {
    }
  };
 
  //***************************************************************************
  //***************************************************************************
  class list_unsorted : public list_exception
  {
  public:
 
    list_unsorted(string_type file_name_, numeric_type line_number_)
      : list_exception(ETL_ERROR_TEXT("list:unsorted", ETL_LIST_FILE_ID"D"), file_name_, line_number_)
    {
    }
  };
 
  //***************************************************************************
  //***************************************************************************
  class list_no_pool : public list_exception
  {
  public:
 
    list_no_pool(string_type file_name_, numeric_type line_number_)
      : list_exception(ETL_ERROR_TEXT("list:no pool", ETL_LIST_FILE_ID"E"), file_name_, line_number_)
    {
    }
  };
 
  //***************************************************************************
  //***************************************************************************
  class list_base
  {
  public:
 
    typedef size_t size_type; 
 
    //*************************************************************************
    //*************************************************************************
    struct node_t
    {
      //***********************************************************************
      //***********************************************************************
      node_t()
        : previous(ETL_NULLPTR),
          next(ETL_NULLPTR)
      {
      }
 
      //***********************************************************************
      //***********************************************************************
      void reverse()
      {
        using ETL_OR_STD::swap; // Allow ADL
 
        swap(previous, next);
      }
 
      node_t* previous;
      node_t* next;
    };
 
    //*************************************************************************
    //*************************************************************************
    bool has_shared_pool() const
    {
      return pool_is_shared;
    }
 
    //*************************************************************************
    //*************************************************************************
    void reverse()
    {
      if (is_trivial_list())
      {
        return;
      }
 
      node_t* p_node = terminal_node.next;
 
      while (p_node != &terminal_node)
      {
        node_t* p_temp = p_node->previous;
        p_node->previous = p_node->next;
        p_node->next = p_temp;
        p_node = p_node->previous;
      }
 
      // Terminal node.
      node_t* p_temp = p_node->previous;
      p_node->previous = p_node->next;
      p_node->next = p_temp;
    }
 
    //*************************************************************************
    //*************************************************************************
    size_type max_size() const
    {
      return MAX_SIZE;
    }
 
    //*************************************************************************
    //*************************************************************************
    size_type capacity() const
    {
      return MAX_SIZE;
    }
 
    //*************************************************************************
    //*************************************************************************
    size_type size() const
    {
      if (has_shared_pool())
      {
        // We have to count what we actually own.
        size_type count = 0U;
 
        node_t* p_node = terminal_node.next;
 
        while (p_node != &terminal_node)
        {
          ++count;
          p_node = p_node->next;
        }
 
        return count;
      }
      else
      {
        return p_node_pool->size();
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    bool empty() const
    {
      return (terminal_node.next == &terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    bool full() const
    {
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
      return p_node_pool->full();
    }
 
    //*************************************************************************
    //*************************************************************************
    size_type available() const
    {
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
      return p_node_pool->available();
    }
 
  protected:
 
    //*************************************************************************
    //*************************************************************************
    bool is_trivial_list() const
    {
      return (size() < 2);
    }
 
    //*************************************************************************
    //*************************************************************************
    node_t& get_head()
    {
      return *terminal_node.next;
    }
 
    //*************************************************************************
    //*************************************************************************
    const node_t& get_head() const
    {
      return *terminal_node.next;
    }
 
    //*************************************************************************
    //*************************************************************************
    node_t& get_tail()
    {
      return *terminal_node.previous;
    }
 
    //*************************************************************************
    //*************************************************************************
    const node_t& get_tail() const
    {
      return *terminal_node.previous;
    }
 
    //*************************************************************************
    //*************************************************************************
    void insert_node(node_t& position, node_t& node)
    {
      // Connect to the list.
      join(*position.previous, node);
      join(node, position);
    }
 
    //*************************************************************************
    //*************************************************************************
    void join(node_t& left, node_t& right)
    {
      left.next      = &right;
      right.previous = &left;
    }
 
    //*************************************************************************
    //*************************************************************************
    explicit list_base(bool pool_is_shared_)
      : p_node_pool(ETL_NULLPTR),
        MAX_SIZE(0),
        pool_is_shared(pool_is_shared_)
    {
      join(terminal_node, terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    list_base(etl::ipool& node_pool_, size_type   max_size_, bool pool_is_shared_)
      : p_node_pool(&node_pool_),
        MAX_SIZE(max_size_),
        pool_is_shared(pool_is_shared_)
    {
      join(terminal_node, terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    void set_node_pool(etl::ipool& node_pool_)
    {
      p_node_pool = &node_pool_;
      MAX_SIZE    = p_node_pool->max_size();
    }
 
    //*************************************************************************
    //*************************************************************************
    etl::ipool* get_node_pool()
    {
      return p_node_pool;
    }
 
    //*************************************************************************
    //*************************************************************************
    ~list_base()
    {
    }
 
    etl::ipool* p_node_pool;     
    node_t      terminal_node;   
    size_type   MAX_SIZE;        
    bool        pool_is_shared;  
    ETL_DECLARE_DEBUG_COUNT;      
  };
 
  //***************************************************************************
  //***************************************************************************
  template <typename T>
  class ilist : public etl::list_base
  {
  public:
 
    typedef T        value_type;
    typedef T*       pointer;
    typedef const T* const_pointer;
    typedef T&       reference;
    typedef const T& const_reference;
#if ETL_USING_CPP11
    typedef T&&      rvalue_reference;
#endif
    typedef size_t   size_type;
 
  protected:
 
    typedef typename etl::parameter_type<T>::type parameter_t;
 
    //*************************************************************************
    //*************************************************************************
    struct data_node_t : public node_t
    {
      explicit data_node_t(const T& value_)
        : value(value_)
      {
      }
 
      T value;
    };
 
  private:
 
    //*************************************************************************
    //*************************************************************************
    static data_node_t* data_cast(node_t* p_node)
    {
      return reinterpret_cast<data_node_t*>(p_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    static data_node_t& data_cast(node_t& node)
    {
      return reinterpret_cast<data_node_t&>(node);
    }
 
    //*************************************************************************
    //*************************************************************************
    static const data_node_t* data_cast(const node_t* p_node)
    {
      return reinterpret_cast<const data_node_t*>(p_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    static const data_node_t& data_cast(const node_t& node)
    {
      return reinterpret_cast<const data_node_t&>(node);
    }
 
  public:
 
    //*************************************************************************
    //*************************************************************************
    class iterator : public etl::iterator<ETL_OR_STD::bidirectional_iterator_tag, T>
    {
    public:
 
      friend class ilist;
      friend class const_iterator;
 
      iterator()
        : p_node(ETL_NULLPTR)
      {
      }
 
      iterator(node_t& node)
        : p_node(&node)
      {
      }
 
      iterator(const iterator& other)
        : p_node(other.p_node)
      {
      }
 
      iterator& operator ++()
      {
        p_node = p_node->next;
        return *this;
      }
 
      iterator operator ++(int)
      {
        iterator temp(*this);
        p_node = p_node->next;
        return temp;
      }
 
      iterator& operator --()
      {
        p_node = p_node->previous;
        return *this;
      }
 
      iterator operator --(int)
      {
        iterator temp(*this);
        p_node = p_node->previous;
        return temp;
      }
 
      iterator& operator =(const iterator& other)
      {
        p_node = other.p_node;
        return *this;
      }
 
      reference operator *() const
      {
        return ilist::data_cast(p_node)->value;
      }
 
      pointer operator &() const
      {
        return &(ilist::data_cast(p_node)->value);
      }
 
      pointer operator ->() const
      {
        return &(ilist::data_cast(p_node)->value);
      }
 
      friend bool operator == (const iterator& lhs, const iterator& rhs)
      {
        return lhs.p_node == rhs.p_node;
      }
 
      friend bool operator != (const iterator& lhs, const iterator& rhs)
      {
        return !(lhs == rhs);
      }
 
    private:
 
      node_t* p_node;
    };
 
    //*************************************************************************
    //*************************************************************************
    class const_iterator : public etl::iterator<ETL_OR_STD::bidirectional_iterator_tag, const T>
    {
    public:
 
      friend class ilist;
 
      const_iterator()
        : p_node(ETL_NULLPTR)
      {
      }
 
      const_iterator(node_t& node)
        : p_node(&node)
      {
      }
 
      const_iterator(const node_t& node)
        : p_node(&node)
      {
      }
 
      const_iterator(const typename ilist::iterator& other)
        : p_node(other.p_node)
      {
      }
 
      const_iterator(const const_iterator& other)
        : p_node(other.p_node)
      {
      }
 
      const_iterator& operator ++()
      {
        p_node = p_node->next;
        return *this;
      }
 
      const_iterator operator ++(int)
      {
        const_iterator temp(*this);
        p_node = p_node->next;
        return temp;
      }
 
      const_iterator& operator --()
      {
        p_node = p_node->previous;
        return *this;
      }
 
      const_iterator operator --(int)
      {
        const_iterator temp(*this);
        p_node = p_node->previous;
        return temp;
      }
 
      const_iterator& operator =(const const_iterator& other)
      {
        p_node = other.p_node;
        return *this;
      }
 
      const_reference operator *() const
      {
        return ilist::data_cast(p_node)->value;
      }
 
      const_pointer operator &() const
      {
        return &(ilist::data_cast(p_node)->value);
      }
 
      const_pointer operator ->() const
      {
        return &(ilist::data_cast(p_node)->value);
      }
 
      friend bool operator == (const const_iterator& lhs, const const_iterator& rhs)
      {
        return lhs.p_node == rhs.p_node;
      }
 
      friend bool operator != (const const_iterator& lhs, const const_iterator& rhs)
      {
        return !(lhs == rhs);
      }
 
    private:
 
      const node_t* p_node;
    };
 
    typedef typename etl::iterator_traits<iterator>::difference_type difference_type;
 
    typedef ETL_OR_STD::reverse_iterator<iterator>       reverse_iterator;
    typedef ETL_OR_STD::reverse_iterator<const_iterator> const_reverse_iterator;
 
    //*************************************************************************
    //*************************************************************************
    iterator begin()
    {
      return iterator(get_head());
    }
 
    //*************************************************************************
    //*************************************************************************
    const_iterator begin() const
    {
      return const_iterator(get_head());
    }
 
    //*************************************************************************
    //*************************************************************************
    iterator end()
    {
      return iterator(terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    const_iterator end() const
    {
      return const_iterator(terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    const_iterator cbegin() const
    {
      return const_iterator(get_head());
    }
 
    //*************************************************************************
    //*************************************************************************
    const_iterator cend() const
    {
      return const_iterator(terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    reverse_iterator rbegin()
    {
      return reverse_iterator(terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    const_reverse_iterator rbegin() const
    {
      return const_reverse_iterator(terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    reverse_iterator rend()
    {
      return reverse_iterator(get_head());
    }
 
    //*************************************************************************
    //*************************************************************************
    const_reverse_iterator rend() const
    {
      return const_reverse_iterator(get_head());
    }
 
    //*************************************************************************
    //*************************************************************************
    const_reverse_iterator crbegin() const
    {
      return const_reverse_iterator(terminal_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    const_reverse_iterator crend() const
    {
      return const_reverse_iterator(get_head());
    }
 
    //*************************************************************************
    //*************************************************************************
    reference front()
    {
      return data_cast(get_head()).value;
    }
 
    //*************************************************************************
    //*************************************************************************
    const_reference front() const
    {
      return data_cast(get_head()).value;
    }
 
    //*************************************************************************
    //*************************************************************************
    reference back()
    {
      return data_cast(get_tail()).value;
    }
 
    //*************************************************************************
    //*************************************************************************
    const_reference back() const
    {
      return data_cast(get_tail()).value;
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename TIterator>
    void assign(TIterator first, TIterator last, typename etl::enable_if<!etl::is_integral<TIterator>::value, int>::type = 0)
    {
#if ETL_IS_DEBUG_BUILD
      difference_type d = etl::distance(first, last);
      ETL_ASSERT(d >= 0, ETL_ERROR(list_iterator));
      ETL_ASSERT(size_t(d) <= MAX_SIZE, ETL_ERROR(list_full));
#endif
      initialise();
 
      // Add all of the elements.
      while (first != last)
      {
        data_node_t& node = allocate_data_node(*first);
        join(get_tail(), node);
        join(node, terminal_node);
        ++first;
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    void assign(size_t n, const T& value)
    {
#if ETL_IS_DEBUG_BUILD
      ETL_ASSERT(n <= MAX_SIZE, ETL_ERROR(list_full));
#endif
 
      initialise();
 
      // Add all of the elements.
      while (n-- > 0)
      {
        data_node_t& node = allocate_data_node(value);
        join(*terminal_node.previous, node);
        join(node, terminal_node);
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    void push_front(const T& value)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      insert_node(get_head(), allocate_data_node(value));
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    void push_front(rvalue_reference value)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      insert_node(get_head(), allocate_data_node(etl::move(value)));
    }
#endif
 
#if ETL_USING_CPP11 && ETL_NOT_USING_STLPORT && !defined(ETL_LIST_FORCE_CPP03_IMPLEMENTATION)
    //*************************************************************************
    //*************************************************************************
    template <typename ... Args>
    reference emplace_front(Args && ... args)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(etl::forward<Args>(args)...);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(get_head(), *p_data_node);
      return front();
    }
#else
    //*************************************************************************
    //*************************************************************************
    reference emplace_front()
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T();
      ETL_INCREMENT_DEBUG_COUNT;
        insert_node(get_head(), *p_data_node);
      return front();
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename T1>
    reference emplace_front(const T1& value1)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(get_head(), *p_data_node);
      return front();
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename T1, typename T2>
    reference emplace_front(const T1& value1, const T2& value2)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(get_head(), *p_data_node);
      return front();
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename T1, typename T2, typename T3>
    reference emplace_front(const T1& value1, const T2& value2, const T3& value3)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2, value3);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(get_head(), *p_data_node);
      return front();
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename T1, typename T2, typename T3, typename T4>
    reference emplace_front(const T1& value1, const T2& value2, const T3& value3, const T4& value4)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2, value3, value4);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(get_head(), *p_data_node);
      return front();
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void pop_front()
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!empty(), ETL_ERROR(list_empty));
#endif
      node_t& node = get_head();
      remove_node(node);
    }
 
    //*************************************************************************
    //*************************************************************************
    void push_back(const T& value)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      insert_node(terminal_node, allocate_data_node(value));
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    void push_back(rvalue_reference value)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      insert_node(terminal_node, allocate_data_node(etl::move(value)));
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
#if ETL_USING_CPP11 && ETL_NOT_USING_STLPORT
    template <typename ... Args>
    reference emplace_back(Args && ... args)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(etl::forward<Args>(args)...);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(terminal_node, *p_data_node);
      return back();
    }
#else
    reference emplace_back()
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T();
      ETL_INCREMENT_DEBUG_COUNT;
        insert_node(terminal_node, *p_data_node);
      return back();
    }
 
    template <typename T1>
    reference emplace_back(const T1& value1)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(terminal_node, *p_data_node);
      return back();
    }
 
    template <typename T1, typename T2>
    reference emplace_back(const T1& value1, const T2& value2)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(terminal_node, *p_data_node);
      return back();
    }
 
    template <typename T1, typename T2, typename T3>
    reference emplace_back(const T1& value1, const T2& value2, const T3& value3)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2, value3);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(terminal_node, *p_data_node);
      return back();
    }
 
    template <typename T1, typename T2, typename T3, typename T4>
    reference emplace_back(const T1& value1, const T2& value2, const T3& value3, const T4& value4)
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
#endif
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2, value3, value4);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(terminal_node, *p_data_node);
      return back();
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void pop_back()
    {
#if defined(ETL_CHECK_PUSH_POP)
      ETL_ASSERT(!empty(), ETL_ERROR(list_empty));
#endif
      node_t& node = get_tail();
      remove_node(node);
    }
 
    //*************************************************************************
    //*************************************************************************
    iterator insert(const_iterator position, const_reference value)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
 
      data_node_t& data_node = allocate_data_node(value);
      insert_node(*to_iterator(position).p_node, data_node);
 
      return iterator(data_node);
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    iterator insert(const_iterator position, rvalue_reference value)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
 
      data_node_t& data_node = allocate_data_node(etl::move(value));
      insert_node(*to_iterator(position).p_node, data_node);
 
      return iterator(data_node);
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
#if ETL_USING_CPP11 && ETL_NOT_USING_STLPORT && !defined(ETL_LIST_FORCE_CPP03_IMPLEMENTATION)
    template <typename ... Args>
    iterator emplace(const_iterator position, Args&& ... args)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(etl::forward<Args>(args)...);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(*to_iterator(position).p_node, *p_data_node);
 
      return iterator(*p_data_node);
    }
#else
    iterator emplace(const_iterator position)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T();
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(*to_iterator(position).p_node, *p_data_node);
 
      return iterator(*p_data_node);
    }
 
    template <typename T1>
    iterator emplace(const_iterator position, const T1& value1)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(*to_iterator(position).p_node, *p_data_node);
 
      return iterator(*p_data_node);
    }
 
    template <typename T1, typename T2>
    iterator emplace(const_iterator position, const T1& value1, const T2& value2)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(*to_iterator(position).p_node, *p_data_node);
 
      return iterator(*p_data_node);
    }
 
    template <typename T1, typename T2, typename T3>
    iterator emplace(const_iterator position, const T1& value1, const T2& value2, const T3& value3)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2, value3);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(*to_iterator(position).p_node, *p_data_node);
 
      return iterator(*p_data_node);
    }
 
    template <typename T1, typename T2, typename T3, typename T4>
    iterator emplace(const_iterator position, const T1& value1, const T2& value2, const T3& value3, const T4& value4)
    {
      ETL_ASSERT(!full(), ETL_ERROR(list_full));
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value1, value2, value3, value4);
      ETL_INCREMENT_DEBUG_COUNT;
      insert_node(*to_iterator(position).p_node, *p_data_node);
 
      return iterator(*p_data_node);
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void insert(const_iterator position, size_t n, const_reference value)
    {
      for (size_t i = 0UL; i < n; ++i)
      {
        ETL_ASSERT(!full(), ETL_ERROR(list_full));
 
        // Set up the next free node and insert.
        insert_node(*to_iterator(position).p_node, allocate_data_node(value));
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename TIterator>
    void insert(const_iterator position, TIterator first, TIterator last, typename etl::enable_if<!etl::is_integral<TIterator>::value, int>::type = 0)
    {
      while (first != last)
      {
        ETL_ASSERT(!full(), ETL_ERROR(list_full));
 
        // Set up the next free node and insert.
        insert_node(*to_iterator(position).p_node, allocate_data_node(*first));
        ++first;
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    iterator erase(const_iterator position)
    {
      iterator position_ = to_iterator(position);
 
      ++position_;
      remove_node(*position_.p_node->previous);
      return position_;
    }
 
    //*************************************************************************
    //*************************************************************************
    iterator erase(const_iterator first, const_iterator last)
    {
      iterator first_ = to_iterator(first);
      iterator last_  = to_iterator(last);
 
      node_t* p_first = first_.p_node;
      node_t* p_last  = last_.p_node;
      node_t* p_next;
 
      // Join the ends.
      join(*(p_first->previous), *p_last);
 
      // Erase the ones in between.
      while (p_first != p_last)
      {
        p_next = p_first->next;                                 // Remember the next node.
        destroy_data_node(static_cast<data_node_t&>(*p_first)); // Destroy the current node.
        p_first = p_next;                                       // Move to the next node.
      }
 
      return last_;
    }
 
    //*************************************************************************
    //*************************************************************************
    void resize(size_t n)
    {
      resize(n, T());
    }
 
    //*************************************************************************
    //*************************************************************************
    void resize(size_t n, const_reference value)
    {
      ETL_ASSERT(n <= MAX_SIZE, ETL_ERROR(list_full));
 
      // Zero?
      if (n == 0U)
      {
        clear();
      }
      // Smaller?
      else if (n < size())
      {
        iterator i_start = end();
        etl::advance(i_start, -difference_type(size() - n));
        erase(i_start, end());
      }
      // Larger?
      else if (n > size())
      {
        insert(end(), n - size(), value);
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    void clear()
    {
      initialise();
    }
 
    //*************************************************************************
    // Removes the values specified.
    //*************************************************************************
    void remove(const_reference value)
    {
      iterator iValue = begin();
 
      while (iValue != end())
      {
        if (value == *iValue)
        {
          iValue = erase(iValue);
        }
        else
        {
          ++iValue;
        }
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename TPredicate>
    void remove_if(TPredicate predicate)
    {
      iterator iValue = begin();
 
      while (iValue != end())
      {
        if (predicate(*iValue))
        {
          iValue = erase(iValue);
        }
        else
        {
          ++iValue;
        }
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    void unique()
    {
      unique(etl::equal_to<T>());
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename TIsEqual>
    void unique(TIsEqual isEqual)
    {
      if (empty())
      {
        return;
      }
 
      iterator i_item = begin();
      ++i_item;
      iterator i_previous = begin();
 
      while (i_item != end())
      {
        if (isEqual(*i_previous, *i_item))
        {
          i_item = erase(i_item);
        }
        else
        {
          i_previous = i_item;
          ++i_item;
        }
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    void splice(iterator to, ilist& other)
    {
      if (&other != this)
      {
        insert(to, other.begin(), other.end());
        other.erase(other.begin(), other.end());
      }
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    void splice(iterator to, ilist&& other)
    {
      if (&other != this)
      {
        typename ilist<T>::iterator itr = other.begin();
        while (itr != other.end())
        {
          to = insert(to, etl::move(*itr));
          ++itr;
        }
 
        other.erase(other.begin(), other.end());
      }
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void splice(iterator to, ilist& other, iterator from)
    {
      if (&other == this)
      {
        // Internal move.
        move(to, from);
      }
      else
      {
        // From another list.
        insert(to, *from);
        other.erase(from);
      }
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    void splice(iterator to, ilist&& other, iterator from)
    {
      if (&other == this)
      {
        // Internal move.
        move(to, from);
      }
      else
      {
        // From another list.
        insert(to, etl::move(*from));
        other.erase(from);
      }
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void splice(iterator to, ilist& other, iterator first, iterator last)
    {
      if (&other == this)
      {
        // Internal move.
        move(to, first, last);
      }
      else
      {
        // From another list.
        insert(to, first, last);
        other.erase(first, last);
      }
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    void splice(iterator to, ilist&& other, iterator first, iterator last)
    {
      if (&other == this)
      {
        // Internal move.
        move(to, first, last);
      }
      else
      {
        // From another list.
        ilist::iterator itr = first;
        while (itr != last)
        {
          to = insert(to, etl::move(*itr));
          ++itr;
          ++to;
        }
 
        other.erase(first, last);
      }
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void merge(ilist& other)
    {
      merge(other, etl::less<value_type>());
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename TCompare>
    void merge(ilist& other, TCompare compare)
    {
      if ((this != &other) && !other.empty())
      {
#if ETL_IS_DEBUG_BUILD
        ETL_ASSERT(etl::is_sorted(other.begin(), other.end(), compare), ETL_ERROR(list_unsorted));
        ETL_ASSERT(etl::is_sorted(begin(), end(), compare), ETL_ERROR(list_unsorted));
#endif
 
        ilist::iterator other_begin = other.begin();
        ilist::iterator other_end = other.end();
 
        ilist::iterator this_begin = begin();
        ilist::iterator this_end = end();
 
        while ((this_begin != this_end) && (other_begin != other_end))
        {
          // Find the place to insert.
          while ((this_begin != this_end) && !(compare(*other_begin, *this_begin)))
          {
            ++this_begin;
          }
 
          // Insert.
          if (this_begin != this_end)
          {
            while ((other_begin != other_end) && (compare(*other_begin, *this_begin)))
            {
              insert(this_begin, *other_begin);
              ++other_begin;
            }
          }
        }
 
        // Any left over?
        if ((this_begin == this_end) && (other_begin != other_end))
        {
          insert(this_end, other_begin, other_end);
        }
 
        other.clear();
      }
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    void merge(ilist&& other)
    {
      merge(etl::move(other), etl::less<value_type>());
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename TCompare>
    void merge(ilist&& other, TCompare compare)
    {
      if (!other.empty())
      {
#if ETL_IS_DEBUG_BUILD
        ETL_ASSERT(etl::is_sorted(other.begin(), other.end(), compare), ETL_ERROR(list_unsorted));
        ETL_ASSERT(etl::is_sorted(begin(), end(), compare), ETL_ERROR(list_unsorted));
#endif
 
        ilist::iterator other_begin = other.begin();
        ilist::iterator other_end = other.end();
 
        ilist::iterator this_begin = begin();
        ilist::iterator this_end = end();
 
        while ((this_begin != this_end) && (other_begin != other_end))
        {
          // Find the place to insert.
          while ((this_begin != this_end) && !(compare(*other_begin, *this_begin)))
          {
            ++this_begin;
          }
 
          // Insert.
          if (this_begin != this_end)
          {
            while ((other_begin != other_end) && (compare(*other_begin, *this_begin)))
            {
              insert(this_begin, etl::move(*other_begin));
              ++other_begin;
            }
          }
        }
 
        // Any left over?
        if ((this_begin == this_end) && (other_begin != other_end))
        {
          while (other_begin != other_end)
          {
            insert(this_end, etl::move(*other_begin));
            ++other_begin;
          }
        }
 
        other.clear();
      }
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void sort()
    {
      sort(etl::less<T>());
    }
 
    //*************************************************************************
    //*************************************************************************
    template <typename TCompare>
    void sort(TCompare compare)
    {
      iterator i_left;
      iterator i_right;
      iterator i_node;
      iterator i_head;
      iterator i_tail;
      int   list_size = 1;
      int   number_of_merges;
      int   left_size;
      int   right_size;
 
      if (is_trivial_list())
      {
        return;
      }
 
      while (true)
      {
        i_left = begin();
        i_head = end();
        i_tail = end();
 
        number_of_merges = 0;  // Count the number of merges we do in this pass.
 
        while (i_left != end())
        {
          ++number_of_merges;  // There exists a merge to be done.
          i_right = i_left;
          left_size = 0;
 
          // Step 'list_size' places along from left
          for (int i = 0; i < list_size; ++i)
          {
            ++left_size;
            ++i_right;
 
            if (i_right == end())
            {
              break;
            }
          }
 
          // If right hasn't fallen off end, we have two lists to merge.
          right_size = list_size;
 
          // Now we have two lists. Merge them.
          while (left_size > 0 || (right_size > 0 && i_right != end()))
          {
            // Decide whether the next node of merge comes from left or right.
            if (left_size == 0)
            {
              // Left is empty. The node must come from right.
              i_node = i_right++;
              --right_size;
            }
            else if (right_size == 0 || i_right == end())
            {
              // Right is empty. The node must come from left.
              i_node = i_left++;
              --left_size;
            }
            else if (!compare(*i_right, *i_left))
            {
              // First node of left is lower or same. The node must come from left.
              i_node = i_left++;
              --left_size;
            }
            else
            {
              // First node of right is lower. The node must come from right.
              i_node = i_right;
              ++i_right;
              --right_size;
            }
 
            // Add the next node to the merged head.
            if (i_head == end())
            {
              join(*i_head.p_node, *i_node.p_node);
              i_head = i_node;
              i_tail = i_node;
            }
            else
            {
              join(*i_tail.p_node, *i_node.p_node);
              i_tail = i_node;
            }
 
            join(*i_tail.p_node, terminal_node);
          }
 
          // Now left has stepped `list_size' places along, and right has too.
          i_left = i_right;
        }
 
        // If we have done only one merge, we're finished.
        if (number_of_merges <= 1)   // Allow for number_of_merges == 0, the empty head case
        {
          return;
        }
 
        // Otherwise repeat, merging lists twice the size
        list_size *= 2;
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    ilist& operator = (const ilist& rhs)
    {
      if (&rhs != this)
      {
        assign(rhs.cbegin(), rhs.cend());
      }
 
      return *this;
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    ilist& operator = (ilist&& rhs)
    {
      if (&rhs != this)
      {
        this->initialise();
 
        iterator itr = rhs.begin();
        while (itr != rhs.end())
        {
          push_back(etl::move(*itr));
          ++itr;
        }
 
        rhs.initialise();
      }
 
      return *this;
    }
#endif
 
  protected:
 
    //*************************************************************************
    //*************************************************************************
    ilist(bool pool_is_shared_)
      : list_base(pool_is_shared_)
    {
    }
 
    //*************************************************************************
    //*************************************************************************
    ilist(etl::ipool& node_pool, size_t max_size_, bool pool_is_shared_)
      : list_base(node_pool, max_size_, pool_is_shared_)
    {
    }
 
    //*************************************************************************
    //*************************************************************************
    void initialise()
    {
      if (this->p_node_pool != ETL_NULLPTR)
      {
        if (!empty())
        {
          if (etl::is_trivially_destructible<T>::value && !has_shared_pool())
          {
            ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
            p_node_pool->release_all();
            ETL_RESET_DEBUG_COUNT;;
          }
          else
          {
            node_t* p_first = terminal_node.next;
            node_t* p_last = &terminal_node;
 
            while (p_first != p_last)
            {
              destroy_data_node(static_cast<data_node_t&>(*p_first)); // Destroy the current node.
              p_first = p_first->next;                                // Move to the next node.
            }
          }
        }
      }
 
      join(terminal_node, terminal_node);
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    void move_container(ilist&& rhs)
    {
      if (&rhs != this)
      {
        this->initialise();
 
        if (!rhs.empty())
        {
          // Are we using the same pool?
          if (this->get_node_pool() == rhs.get_node_pool())
          {
            // Just link the nodes to this list.
            join(terminal_node,  rhs.get_head());
            join(rhs.get_tail(), terminal_node);
 
            ETL_SET_DEBUG_COUNT(ETL_OBJECT_GET_DEBUG_COUNT(rhs));
 
            // Clear the rhs.
            ETL_OBJECT_RESET_DEBUG_COUNT(rhs);
            rhs.join(rhs.terminal_node, rhs.terminal_node);
          }
          else
          {
            // Add all of the elements.
            etl::ilist<T>::iterator first = rhs.begin();
            etl::ilist<T>::iterator last = rhs.end();
 
            while (first != last)
            {
              ETL_ASSERT(!full(), ETL_ERROR(list_full));
 
              insert_node(terminal_node, this->allocate_data_node(etl::move(*first)));
              ++first;
            }
 
            rhs.initialise();
          }
        }
      }
    }
#endif
 
  private:
 
    //*************************************************************************
    //*************************************************************************
    void move(iterator to, iterator from)
    {
      if (from == to)
      {
        return; // Can't more to before yourself!
      }
 
      node_t& from_node = *from.p_node;
      node_t& to_node = *to.p_node;
 
      // Disconnect the node from the list.
      join(*from_node.previous, *from_node.next);
 
      // Attach it to the new position.
      join(*to_node.previous, from_node);
      join(from_node, to_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    void move(iterator to, iterator first, iterator last)
    {
      if ((first == to) || (last == to))
      {
        return; // Can't more to before yourself!
      }
 
#if ETL_IS_DEBUG_BUILD
      // Check that we are not doing an illegal move!
      for (const_iterator item = first; item != last; ++item)
      {
        ETL_ASSERT(item != to, ETL_ERROR(list_iterator));
      }
#endif
 
      node_t& first_node = *first.p_node;
      node_t& last_node = *last.p_node;
      node_t& to_node = *to.p_node;
      node_t& final_node = *last_node.previous;
 
      // Disconnect the range from the list.
      join(*first_node.previous, last_node);
 
      // Attach it to the new position.
      join(*to_node.previous, first_node);
      join(final_node, to_node);
    }
 
    //*************************************************************************
    //*************************************************************************
    void remove_node(node_t& node)
    {
      // Disconnect the node from the list.
      join(*node.previous, *node.next);
 
      // Destroy the pool object.
      destroy_data_node(static_cast<data_node_t&>(node));
    }
 
    //*************************************************************************
    //*************************************************************************
    data_node_t& allocate_data_node(const_reference value)
    {
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(value);
      ETL_INCREMENT_DEBUG_COUNT;
 
      return *p_data_node;
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    data_node_t& allocate_data_node(rvalue_reference value)
    {
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
 
      data_node_t* p_data_node = allocate_data_node();
      ::new (&(p_data_node->value)) T(etl::move(value));
      ETL_INCREMENT_DEBUG_COUNT;
 
        return *p_data_node;
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    data_node_t* allocate_data_node()
    {
      data_node_t* (etl::ipool::*func)() = &etl::ipool::allocate<data_node_t>;
      return (p_node_pool->*func)();
    }
 
    //*************************************************************************
    //*************************************************************************
    void destroy_data_node(data_node_t& node)
    {
      ETL_ASSERT(p_node_pool != ETL_NULLPTR, ETL_ERROR(list_no_pool));
      node.value.~T();
      p_node_pool->release(&node);
      ETL_DECREMENT_DEBUG_COUNT;
    }
 
    // Disable copy construction.
    ilist(const ilist&);
 
#if defined(ETL_POLYMORPHIC_LIST) || defined(ETL_POLYMORPHIC_CONTAINERS)
  public:
    virtual ~ilist()
    {
    }
#else
  protected:
    ~ilist()
    {
    }
#endif
 
  private:
 
    //*************************************************************************
    //*************************************************************************
    iterator to_iterator(const_iterator itr) const
    {
      return iterator(*(const_cast<node_t*>(itr.p_node)));
    }
  };
 
  //*************************************************************************
  //*************************************************************************
  template <typename T, const size_t MAX_SIZE_>
  class list : public etl::ilist<T>
  {
  public:
 
    ETL_STATIC_ASSERT((MAX_SIZE_ > 0U), "Zero capacity etl::list is not valid");
 
    static ETL_CONSTANT size_t MAX_SIZE = MAX_SIZE_;
 
  public:
 
    typedef T        value_type;
    typedef T*       pointer;
    typedef const T* const_pointer;
    typedef T&       reference;
    typedef const T& const_reference;
#if ETL_USING_CPP11
    typedef T&&      rvalue_reference;
#endif
    typedef size_t   size_type;
 
    //*************************************************************************
    //*************************************************************************
    list()
      : etl::ilist<T>(node_pool, MAX_SIZE, false)
    {
    }
 
    //*************************************************************************
    //*************************************************************************
    ~list()
    {
      this->initialise();
    }
 
    //*************************************************************************
    //*************************************************************************
    explicit list(size_t initial_size)
      : etl::ilist<T>(node_pool, MAX_SIZE, false)
    {
      this->assign(initial_size, T());
    }
 
    //*************************************************************************
    //*************************************************************************
    list(size_t initial_size, const T& value)
      : etl::ilist<T>(node_pool, MAX_SIZE, false)
    {
      this->assign(initial_size, value);
    }
 
    //*************************************************************************
    //*************************************************************************
    list(const list& other)
      : etl::ilist<T>(node_pool, MAX_SIZE, false)
    {
      if (this != &other)
      {
        this->assign(other.cbegin(), other.cend());
      }
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    list(list&& other)
      : etl::ilist<T>(node_pool, MAX_SIZE, false)
    {
      if (this != &other)
      {
        this->initialise();
 
        typename etl::ilist<T>::iterator itr = other.begin();
        while (itr != other.end())
        {
          this->push_back(etl::move(*itr));
          ++itr;
        }
 
        other.initialise();
      }
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    template <typename TIterator>
    list(TIterator first, TIterator last, typename etl::enable_if<!etl::is_integral<TIterator>::value, int>::type = 0)
      : ilist<T>(node_pool, MAX_SIZE, false)
    {
      this->assign(first, last);
    }
 
#if ETL_HAS_INITIALIZER_LIST
    //*************************************************************************
    //*************************************************************************
    list(std::initializer_list<T> init)
      : ilist<T>(node_pool, MAX_SIZE, false)
    {
      this->assign(init.begin(), init.end());
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    list& operator = (const list& rhs)
    {
      if (&rhs != this)
      {
        this->assign(rhs.cbegin(), rhs.cend());
      }
 
      return *this;
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    list& operator = (list&& rhs)
    {
      this->move_container(etl::move(rhs));
 
      return *this;
    }
#endif
 
  private:
 
    etl::pool<typename etl::ilist<T>::data_node_t, MAX_SIZE> node_pool;
  };
 
  template <typename T, const size_t MAX_SIZE_>
  ETL_CONSTANT size_t list<T, MAX_SIZE_>::MAX_SIZE;
 
  //*************************************************************************
  //*************************************************************************
#if ETL_USING_CPP17 && ETL_HAS_INITIALIZER_LIST
  template <typename... T>
  list(T...) -> list<typename etl::common_type_t<T...>,
                     sizeof...(T)>;
#endif
 
  //*************************************************************************
  //*************************************************************************
#if ETL_USING_CPP11 && ETL_HAS_INITIALIZER_LIST
  template <typename... T>
  constexpr auto make_list(T... t) -> etl::list<typename etl::common_type_t<T...>, sizeof...(T)>
  {
    return { etl::forward<T>(t)... };
  }
#endif
 
  //*************************************************************************
  //*************************************************************************
  template <typename T>
  class list_ext : public etl::ilist<T>
  {
  public:
 
    typedef T        value_type;
    typedef T*       pointer;
    typedef const T* const_pointer;
    typedef T&       reference;
    typedef const T& const_reference;
    typedef size_t   size_type;
 
    typedef typename etl::ilist<T>::data_node_t pool_type;
 
    //*************************************************************************
    //*************************************************************************
    list_ext()
      : etl::ilist<T>(true)
    {
    }
 
    //*************************************************************************
    //*************************************************************************
    explicit list_ext(etl::ipool& node_pool)
      : etl::ilist<T>(node_pool, node_pool.max_size(), true)
    {
    }
 
    //*************************************************************************
    //*************************************************************************
    ~list_ext()
    {
      this->initialise();
    }
 
    //*************************************************************************
    //*************************************************************************
    explicit list_ext(size_t initial_size, etl::ipool& node_pool)
      : etl::ilist<T>(node_pool, node_pool.max_size(), true)
    {
      this->assign(initial_size, T());
    }
 
    //*************************************************************************
    //*************************************************************************
    list_ext(size_t initial_size, const T& value, etl::ipool& node_pool)
      : etl::ilist<T>(node_pool, node_pool.max_size(), true)
    {
      this->assign(initial_size, value);
    }
 
    //*************************************************************************
    //*************************************************************************
    list_ext(const list_ext& other)
      : etl::ilist<T>(*other.p_node_pool, other.p_node_pool->max_size(), true)
    {
      if (this != &other)
      {
        this->assign(other.cbegin(), other.cend());
      }
    }
 
    //*************************************************************************
    //*************************************************************************
    list_ext(const list_ext& other, etl::ipool& node_pool)
      : etl::ilist<T>(node_pool, node_pool.max_size(), true)
    {
      if (this != &other)
      {
        this->assign(other.cbegin(), other.cend());
      }
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    list_ext(list_ext&& other)
      : etl::ilist<T>(*other.p_node_pool, other.p_node_pool->max_size(), true)
    {
      this->move_container(etl::move(other));
    }
 
    //*************************************************************************
    //*************************************************************************
    list_ext(list_ext&& other, etl::ipool& node_pool)
      : etl::ilist<T>(node_pool, node_pool.max_size(), true)
    {
      this->move_container(etl::move(other));
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    template <typename TIterator>
    list_ext(TIterator first, TIterator last, etl::ipool& node_pool, typename etl::enable_if<!etl::is_integral<TIterator>::value, int>::type = 0)
      : ilist<T>(node_pool, node_pool.max_size(), true)
    {
      this->assign(first, last);
    }
 
#if ETL_HAS_INITIALIZER_LIST
    //*************************************************************************
    //*************************************************************************
    list_ext(std::initializer_list<T> init, etl::ipool& node_pool)
      : ilist<T>(node_pool, node_pool.max_size(), true)
    {
      this->assign(init.begin(), init.end());
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    list_ext& operator = (const list_ext& rhs)
    {
      if (&rhs != this)
      {
        this->assign(rhs.cbegin(), rhs.cend());
      }
 
      return *this;
    }
 
#if ETL_USING_CPP11
    //*************************************************************************
    //*************************************************************************
    list_ext& operator = (list_ext&& rhs)
    {
      this->move_container(etl::move(rhs));
 
      return *this;
    }
#endif
 
    //*************************************************************************
    //*************************************************************************
    void set_pool(etl::ipool& pool)
    {
      // Clear the list of any current elements.
      if (this->get_node_pool() != ETL_NULLPTR)
      {
        this->clear();
      }
 
      this->set_node_pool(pool);
    }
 
    //*************************************************************************
    //*************************************************************************
    etl::ipool& get_pool() const
    {
      return *this->p_node_pool;
    }
  };
 
  //*************************************************************************
  //*************************************************************************
  template <typename T>
  bool operator ==(const etl::ilist<T>& lhs, const etl::ilist<T>& rhs)
  {
    return (lhs.size() == rhs.size()) && etl::equal(lhs.begin(), lhs.end(), rhs.begin());
  }
 
  //*************************************************************************
  //*************************************************************************
  template <typename T>
  bool operator !=(const etl::ilist<T>& lhs, const etl::ilist<T>& rhs)
  {
    return !(lhs == rhs);
  }
 
  //*************************************************************************
  //*************************************************************************
  template <typename T>
  bool operator <(const etl::ilist<T>& lhs, const etl::ilist<T>& rhs)
  {
    return etl::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end());
  }
 
  //*************************************************************************
  //*************************************************************************
  template <typename T>
  bool operator >(const etl::ilist<T>& lhs, const etl::ilist<T>& rhs)
  {
    return (rhs < lhs);
  }
 
  //*************************************************************************
  //*************************************************************************
  template <typename T>
  bool operator <=(const etl::ilist<T>& lhs, const etl::ilist<T>& rhs)
  {
    return !(lhs > rhs);
  }
 
  //*************************************************************************
  //*************************************************************************
  template <typename T>
  bool operator >=(const etl::ilist<T>& lhs, const etl::ilist<T>& rhs)
  {
    return !(lhs < rhs);
  }
}
 
#include "private/minmax_pop.h"
 
#endif