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