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 * 
 * Licensed to the Apache Software Foundation (ASF) under one
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 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
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 * 
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#ifndef ARY_STDCONSTITER_HXX
#define ARY_STDCONSTITER_HXX
//  KORR_DEPRECATED_3.0


// USED SERVICES
    // BASE CLASSES
    // COMPONENTS
    // PARAMETERS


namespace ary
{

template <class ELEM>

class StdConstIterator
{
  public:
    virtual             ~StdConstIterator() {}

    void                operator++()            { do_Advance(); }
    const ELEM &        operator*() const       { return *inq_CurElement(); }
                        operator bool() const   { return inq_CurElement() != 0; }

    /// Needed as replacement for operator bool() in gcc 2.95.
    bool                IsValid() const         { return operator bool(); }
    bool                IsSorted() const        { return inq_IsSorted(); }

  protected:
                        StdConstIterator() {}

  private:
    //Locals
    virtual void        do_Advance() = 0;
    virtual const ELEM *
                        inq_CurElement() const = 0;
    virtual bool        inq_IsSorted() const = 0;

    // Forbidden:
    StdConstIterator(const StdConstIterator<ELEM>&);
    StdConstIterator<ELEM> & operator=(const StdConstIterator<ELEM>&);
};


template <class ELEM>
class Dyn_StdConstIterator
{
  public:
    typedef StdConstIterator<ELEM> client_type;

                        Dyn_StdConstIterator(
                            DYN client_type *   pass_dpIterator = 0 )
                                                : pClient(pass_dpIterator) {}
    Dyn_StdConstIterator<ELEM> &
                        operator=(
                            DYN client_type *   pass_dpIterator )
                                                { pClient = pass_dpIterator;
                                                  return *this; }
    client_type &       operator*() const       { return *pClient.MutablePtr(); }

  private:
    Dyn<client_type>    pClient;
};


}   // namespace ary
#endif