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 : Wed Jan 27 23:49:13 2016 |
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13 | // Update Count : 7 |
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14 | // |
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15 | |
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16 | #ifndef ITERATOR_H |
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17 | #define ITERATOR_H |
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18 | |
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19 | // An iterator can be used to traverse a data structure. |
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20 | context iterator( type iterator_type, type elt_type ) { |
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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 | lvalue elt_type *?( iterator_type ); |
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32 | }; |
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33 | |
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34 | context iterator_for( type iterator_type, type collection_type, type elt_type | iterator( iterator_type, elt_type ) ) { |
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35 | // [ iterator_type begin, iterator_type end ] get_iterators( collection_type ); |
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36 | iterator_type begin( collection_type ); |
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37 | iterator_type end( collection_type ); |
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38 | }; |
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39 | |
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40 | forall( type iterator_type, type elt_type | iterator( iterator_type, elt_type ) ) |
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41 | void for_each( iterator_type begin, iterator_type end, void (*func)( elt_type ) ); |
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42 | |
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43 | forall( type iterator_type, type elt_type | iterator( iterator_type, elt_type ) ) |
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44 | void for_each_reverse( iterator_type begin, iterator_type end, void (*func)( elt_type ) ); |
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45 | |
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46 | #endif // ITERATOR_H |
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47 | |
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48 | // Local Variables: // |
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49 | // mode: c // |
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50 | // tab-width: 4 // |
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51 | // End: // |
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