1 | //
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2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
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3 | //
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4 | // The contents of this file are covered under the licence agreement in the
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5 | // file "LICENCE" distributed with Cforall.
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6 | //
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7 | // iterator --
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8 | //
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9 | // Author : Richard C. Bilson
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10 | // Created On : Wed May 27 17:56:53 2015
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11 | // Last Modified By : Peter A. Buhr
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12 | // Last Modified On : Thu Feb 2 11:21:50 2023
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13 | // Update Count : 11
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14 | //
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15 |
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16 | #pragma once
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17 |
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18 | // An iterator can be used to traverse a data structure.
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19 | forall( iterator_type, elt_type )
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20 | trait iterator {
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21 | // point to the next element
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22 | // iterator_type ?++( iterator_type & );
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23 | iterator_type ++?( iterator_type & );
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24 | iterator_type --?( iterator_type & );
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25 |
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26 | // can be tested for equality with other iterators
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27 | int ?==?( iterator_type, iterator_type );
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28 | int ?!=?( iterator_type, iterator_type );
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29 |
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30 | // dereference to get the pointed-at element
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31 | elt_type & *?( iterator_type );
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32 | };
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33 |
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34 | forall( iterator_type, collection_type, elt_type | iterator( iterator_type, elt_type ) )
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35 | trait iterator_for {
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36 | // [ iterator_type begin, iterator_type end ] get_iterators( collection_type );
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37 | iterator_type begin( collection_type );
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38 | iterator_type end( collection_type );
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39 | };
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40 |
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41 | forall( iterator_type, elt_type | iterator( iterator_type, elt_type ) )
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42 | void for_each( iterator_type begin, iterator_type end, void (* func)( elt_type ) );
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43 |
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44 | forall( iterator_type, elt_type | iterator( iterator_type, elt_type ) )
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45 | void for_each_reverse( iterator_type begin, iterator_type end, void (* func)( elt_type ) );
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46 |
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47 | // Local Variables: //
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48 | // mode: c //
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49 | // tab-width: 4 //
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50 | // End: //
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