STK_InnerIteratorBase.h

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/*--------------------------------------------------------------------*/
/*     Copyright (C) 2004-2016  Serge Iovleff, Université Lille 1, Inria
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.
 
    This program 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
    License along with this program; if not, write to the
    Free Software Foundation, Inc.,
    59 Temple Place,
    Suite 330,
    Boston, MA 02111-1307
    USA
 
    Contact : S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
*/
 
/*
 * Project:  stkpp::Arrays
 * created on: 28 marsh 2017
 * Author:   iovleff, S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
 **/
 
#ifndef STK_INNERITERATORBASE_H
#define STK_INNERITERATORBASE_H
 
#include <iterator>
 
#include <Sdk.h>
 
namespace STK
{
template<class Array, class Derived>
class InnerIteratorBase: public IRecursiveTemplate<Derived>
{
  protected:
    InnerIteratorBase( Array* p_array)
                     : p_array_(p_array)
                     , row_(p_array->beginRows())
                     , col_(p_array->beginCols())
    {}
    InnerIteratorBase( InnerIteratorBase const& it)
                     : p_array_(it.p_array)
                     , row_(it.row_)
                     , col_(it.col_)
    {}
    ~InnerIteratorBase() {}
 
  public:
    enum
    {
      structure_ = hidden::Traits< Array >::structure_,
      orient_    = hidden::Traits< Array >::orient_,
      sizeCols_  = hidden::Traits< Array >::sizeCols_,
      sizeRows_  = hidden::Traits< Array >::sizeRows_,
      size_      = hidden::Traits< Array >::size_,
      storage_   = hidden::Traits< Array >::storage_
    };
 
    typedef typename hidden::Traits< Array >::Type Type;
    typedef typename hidden::Traits< Array >::TypeConst TypeConst;
 
    typedef typename hidden::RemoveConst<Type>::Type&  reference;
    typedef typename hidden::RemoveConst<Type>::Type*  pointer;
 
    inline int col() const {return col_;}
    inline int row() const {return row_;}
 
    inline Derived const& next() const { return this->asDerived().nextImpl();}
    inline Derived const& prev() const { return this->asDerived().prevImpl();}
    inline Derived const& operator++() const { return next();}
    inline Derived const& operator++(int) const  { return next();}
    inline Derived const& operator--()   const  { return prev();}
    inline Derived const& operator--(int) const  { return prev();}
 
    inline TypeConst value() const  { return this->asDerived().valueImpl();}
    inline reference valueRef() const  { return this->asDerived().valueRefImpl();}
    inline reference operator*() const { return value();}
    inline pointer operator->() const { return &(value());}
 
  protected:
    Array* const p_array_;
    mutable int row_;
    mutable int col_;
};
 
 
} // namespace STK
 
#endif /* STK_INNERITERATORBASE_H */