| [86bd7c1f] | 1 | //
|
|---|
| 2 | // Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
|
|---|
| 3 | //
|
|---|
| 4 | // The contents of this file are covered under the licence agreement in the
|
|---|
| 5 | // file "LICENCE" distributed with Cforall.
|
|---|
| 6 | //
|
|---|
| 7 | // iterator.h --
|
|---|
| 8 | //
|
|---|
| 9 | // Author : Richard C. Bilson
|
|---|
| 10 | // Created On : Wed May 27 17:56:53 2015
|
|---|
| 11 | // Last Modified By : Peter A. Buhr
|
|---|
| 12 | // Last Modified On : Wed May 27 18:41:57 2015
|
|---|
| 13 | // Update Count : 3
|
|---|
| 14 | //
|
|---|
| 15 |
|
|---|
| [51b73452] | 16 | #ifndef ITERATOR_H
|
|---|
| 17 | #define ITERATOR_H
|
|---|
| 18 |
|
|---|
| 19 | #include "iostream.h"
|
|---|
| 20 |
|
|---|
| [134b86a] | 21 | // An iterator can be used to traverse a data structure.
|
|---|
| 22 | context iterator( type iterator_type, type elt_type ) {
|
|---|
| [86bd7c1f] | 23 | // point to the next element
|
|---|
| 24 | // iterator_type ?++( iterator_type * );
|
|---|
| 25 | iterator_type ++?( iterator_type * );
|
|---|
| 26 | iterator_type --?( iterator_type * );
|
|---|
| [134b86a] | 27 |
|
|---|
| [86bd7c1f] | 28 | // can be tested for equality with other iterators
|
|---|
| 29 | int ?==?( iterator_type, iterator_type );
|
|---|
| 30 | int ?!=?( iterator_type, iterator_type );
|
|---|
| [134b86a] | 31 |
|
|---|
| [86bd7c1f] | 32 | // dereference to get the pointed-at element
|
|---|
| 33 | lvalue elt_type *?( iterator_type );
|
|---|
| [51b73452] | 34 | };
|
|---|
| 35 |
|
|---|
| [a32b204] | 36 | context iterator_for ( type iterator_type, type collection_type, type elt_type | iterator( iterator_type, elt_type ) ) {
|
|---|
| [86bd7c1f] | 37 | // [ iterator_type begin, iterator_type end ] get_iterators( collection_type );
|
|---|
| 38 | iterator_type begin( collection_type );
|
|---|
| 39 | iterator_type end( collection_type );
|
|---|
| [51b73452] | 40 | };
|
|---|
| 41 |
|
|---|
| 42 | forall( type iterator_type, type elt_type | iterator( iterator_type, elt_type ) )
|
|---|
| 43 | void for_each( iterator_type begin, iterator_type end, void (*func)( elt_type ) );
|
|---|
| 44 |
|
|---|
| [134b86a] | 45 | // writes the range [begin, end) to the given stream
|
|---|
| [51b73452] | 46 | forall( type elt_type | writeable( elt_type ),
|
|---|
| [86bd7c1f] | 47 | type iterator_type | iterator( iterator_type, elt_type ),
|
|---|
| 48 | dtype os_type | ostream( os_type ) )
|
|---|
| [51b73452] | 49 | void write_all( iterator_type begin, iterator_type end, os_type *os );
|
|---|
| 50 |
|
|---|
| [134b86a] | 51 | forall( type elt_type | writeable( elt_type ),
|
|---|
| [86bd7c1f] | 52 | type iterator_type | iterator( iterator_type, elt_type ),
|
|---|
| 53 | dtype os_type | ostream( os_type ) )
|
|---|
| [134b86a] | 54 | void write_reverse( iterator_type begin, iterator_type end, os_type *os );
|
|---|
| 55 |
|
|---|
| 56 | #endif // ITERATOR_H
|
|---|
| [86bd7c1f] | 57 |
|
|---|
| 58 | // Local Variables: //
|
|---|
| 59 | // tab-width: 4 //
|
|---|
| 60 | // compile-command: "cfa iterator.c" //
|
|---|
| 61 | // End: //
|
|---|
