OW_List.hpp

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#ifndef OW_LIST_HPP_INCLUDE_GUARD_
#define OW_LIST_HPP_INCLUDE_GUARD_
#include "OW_config.h"
#include "OW_COWReference.hpp"
#include <list>

namespace OW_NAMESPACE
{

// forward declarations are necessary for template friends.
template<class T> class List;

template <class T>
inline bool operator==(const List<T>& x, const List<T>& y);

template <class T>
inline bool operator<(const List<T>& x, const List<T>& y);

   
template<class T> class List
{
private:
   typedef std::list<T> L;
   COWReference<L> m_impl;
public:
   typedef typename L::value_type value_type;
   typedef typename L::pointer pointer;
   typedef typename L::const_pointer const_pointer;
   typedef typename L::reference reference;
   typedef typename L::const_reference const_reference;
   typedef typename L::size_type size_type;
   typedef typename L::difference_type difference_type;
   typedef typename L::iterator iterator;
   typedef typename L::const_iterator const_iterator;
   typedef typename L::reverse_iterator reverse_iterator;
   typedef typename L::const_reverse_iterator const_reverse_iterator;
   List() : m_impl(new L) {}
   explicit List(L* toWrap) : m_impl(toWrap)
   {  }
   template<class InputIterator>
   List(InputIterator first, InputIterator last) : m_impl(new L(first, last))
   {
   }
   List(size_type n, const T& value) : m_impl(new L(n, value))
   {
   }
   List(int n, const T& value) : m_impl(new L(n, value))
   {
   }
   List(long n, const T& value) : m_impl(new L(n, value))
   {
   }
   explicit List(size_type n) : m_impl(new L(n))
   {
   }
   L* getImpl()
   {
      return &*m_impl;
   }
   iterator begin()
   {
      return m_impl->begin();
   }
   const_iterator begin() const
   {
      return m_impl->begin();
   }
   iterator end()
   {
      return m_impl->end();
   }
   const_iterator end() const
   {
      return m_impl->end();
   }
   reverse_iterator rbegin()
   {
      return m_impl->rbegin();
   }
   const_reverse_iterator rbegin() const
   {
      return m_impl->rbegin();
   }
   reverse_iterator rend()
   {
      return m_impl->rend();
   }
   const_reverse_iterator rend() const
   {
      return m_impl->rend();
   }
   bool empty() const
   {
      return m_impl->empty();
   }
   size_type size() const
   {
      return m_impl->size();
   }
   size_type max_size() const
   {
      return m_impl->max_size();
   }
   reference front()
   {
      return m_impl->front();
   }
   const_reference front() const
   {
      return m_impl->front();
   }
   reference back()
   {
      return m_impl->back();
   }
   const_reference back() const
   {
      return m_impl->back();
   }
   void swap(List<T>& x)
   {
      m_impl.swap(x.m_impl);
   }
   iterator insert(iterator position, const T& x)
   {
      return m_impl->insert(position, x);
   }
   iterator insert(iterator position)
   {
      return m_impl->insert(position);
   }
   template<class InputIterator>
   void insert(iterator position, InputIterator first, InputIterator last)
   {
      m_impl->insert(position, first, last);
   }
   void insert(iterator pos, size_type n, const T& x)
   {
      m_impl->insert(pos, n, x);
   }
   void insert(iterator pos, int n, const T& x)
   {
      m_impl->insert(pos, n, x);
   }
   void insert(iterator pos, long n, const T& x)
   {
      m_impl->insert(pos, n, x);
   }
   void push_front(const T& x)
   {
      m_impl->push_front(x);
   }
   void push_back(const T& x)
   {
      m_impl->push_back(x);
   }
   iterator erase(iterator position)
   {
      return m_impl->erase(position);
   }
   iterator erase(iterator first, iterator last)
   {
      return m_impl->erase(first, last);
   }
   void resize(size_type new_size, const T& x)
   {
      m_impl->resize(new_size, x);
   }
   void resize(size_type new_size)
   {
      m_impl->resize(new_size);
   }
   void clear()
   {
      m_impl->clear();
   }
   void pop_front()
   {
      m_impl->pop_front();
   }
   void pop_back()
   {
      m_impl->pop_back();
   }
   void splice(iterator position, List& x)
   {
      m_impl->splice(position, *x.m_impl);
   }
   void splice(iterator position, List& x, iterator i)
   {
      m_impl->splice(position, *x.m_impl, i);
   }
   void splice(iterator position, List& x, iterator first, iterator last)
   {
      m_impl->splice(position, *x.m_impl, first, last);
   }
   void remove(const T& value)
   {
      m_impl->remove(value);
   }
   void unique()
   {
      m_impl->unique();
   }
   void merge(List& x)
   {
      m_impl->merge(*x.m_impl);
   }
   void reverse()
   {
      m_impl->reverse();
   }
   void sort()
   {
      m_impl->sort();
   }
   template<class Predicate> void remove_if (Predicate p)
   {
      m_impl->remove_if (p);
   }
   template<class BinaryPredicate> void unique(BinaryPredicate bp)
   {
      m_impl->unique(bp);
   }
   template<class StrictWeakOrdering> void merge(List& x, StrictWeakOrdering swo)
   {
      m_impl->merge(*x.m_impl, swo);
   }
   template<class StrictWeakOrdering> void
      sort(StrictWeakOrdering swo)
   {
      m_impl->sort(swo);
   }
   friend bool operator== <>(const List<T>& x,
      const List<T>& y);
   friend bool operator< <>(const List<T>& x,
      const List<T>& y);
};
template <class T>
inline bool operator==(const List<T>& x, const List<T>& y)
{
   return *x.m_impl == *y.m_impl;
}
template <class T>
inline bool operator<(const List<T>& x, const List<T>& y)
{
   return *x.m_impl < *y.m_impl;
}
template <class T>
inline void swap(List<T>& x, List<T>& y)
{
   x.swap(y);
}
template <class T>
std::list<T>* COWReferenceClone(std::list<T>* obj)
{
   return new std::list<T>(*obj);
}

} // end namespace OW_NAMESPACE

#endif

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