FreeNOS
ConstIterator.h
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1 /*
2  * Copyright (C) 2019 Niek Linnenbank
3  *
4  * This program is free software: you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation, either version 3 of the License, or
7  * (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  * GNU General Public License for more details.
13  *
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16  */
17 
18 #ifndef __LIBSTD_CONSTITERATOR_H
19 #define __LIBSTD_CONSTITERATOR_H
20 
21 #include "Types.h"
22 
34 template <class T> class ConstIterator
35 {
36  public:
37 
41  virtual ~ConstIterator() {}
42 
46  virtual void reset() = 0;
47 
53  virtual bool hasNext() const = 0;
54 
60  virtual bool hasCurrent() const = 0;
61 
67  virtual const T & current() const = 0;
68 
77  virtual const T & next() = 0;
78 
87  virtual void operator ++(int num) = 0;
88 };
89 
95 #endif /* __LIBSTD_CONSTITERATOR_H */
ConstIterator::hasCurrent
virtual bool hasCurrent() const =0
Check if there is a current item.
ConstIterator::operator++
virtual void operator++(int num)=0
Increment operator.
Types.h
ConstIterator::reset
virtual void reset()=0
Restart iteration from the beginning.
ConstIterator
Abstracts an iteration process for a constant.
Definition: ConstIterator.h:34
ConstIterator::current
virtual const T & current() const =0
Get the current item read-only.
ConstIterator::~ConstIterator
virtual ~ConstIterator()
Destructor.
Definition: ConstIterator.h:41
ConstIterator::next
virtual const T & next()=0
Fetch the next item.
ConstIterator::hasNext
virtual bool hasNext() const =0
Check if there is more to iterate.