IteratorAdapter.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */

#ifndef KERNEL_UTILITIES_ITERATORADAPTER_H
#define KERNEL_UTILITIES_ITERATORADAPTER_H

template <typename T, class Iterator>
class IteratorAdapter
{
  public:
    inline IteratorAdapter() : m_Iterator()
    {
    }
    inline IteratorAdapter(const Iterator &x) : m_Iterator(x)
    {
    }
    template <typename T2, class Iterator2>
    inline IteratorAdapter(const IteratorAdapter<T2, Iterator2> &x)
        : m_Iterator(x.__getIterator())
    {
    }
    inline IteratorAdapter(const IteratorAdapter &x) : m_Iterator(x.m_Iterator)
    {
    }
    inline ~IteratorAdapter()
    {
    }

    inline IteratorAdapter &operator=(const IteratorAdapter &x)
    {
        m_Iterator = x.m_Iterator;
        return *this;
    }
    template <typename T2, class Iterator2>
    inline IteratorAdapter &operator=(const IteratorAdapter<T2, Iterator2> &x)
    {
        m_Iterator = x.__getIterator();
        return *this;
    }
    inline bool operator==(const IteratorAdapter &x) const
    {
        if (m_Iterator != x.m_Iterator)
            return false;
        return true;
    }
    inline IteratorAdapter &operator++()
    {
        ++m_Iterator;
        return *this;
    }
    inline IteratorAdapter &operator--()
    {
        --m_Iterator;
        return *this;
    }
    inline T &operator*()
    {
        return reinterpret_cast<T &>(*m_Iterator);
    }
    T &operator->()
    {
        return reinterpret_cast<T &>(*m_Iterator);
    }

    inline const Iterator &__getIterator() const
    {
        return m_Iterator;
    }
    inline Iterator &__getIterator()
    {
        return m_Iterator;
    }

  private:
    Iterator m_Iterator;
};

#endif