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/*
colortail -- output last part of file(s) in color.
Copyright (C) 2009 Joakim Andersson <ja@joakimandersson.se>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU 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 General Public License for more details.
You should have received a copy of the GNU 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
*/
#ifndef _Iterator_h_
#define _Iterator_h_
// Based on iterator.h by Timothy A. Budd
// class Iterator
// defines the protocol to be used by all iterators
// subclasses must implement each of the five iterator methods
template <class T> class Iterator
{
public:
// initialization
virtual int init() = 0;
// test if there is a current element
virtual int operator !() = 0;
// current element
virtual T operator ()() = 0;
// find next element
virtual int operator ++() = 0;
// change current element
virtual void operator =(T newValue) = 0;
};
#endif