1 | /* -*- C++ -*- |
---|
2 | * |
---|
3 | * This file is a part of LEMON, a generic C++ optimization library |
---|
4 | * |
---|
5 | * Copyright (C) 2003-2007 |
---|
6 | * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
---|
7 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
---|
8 | * |
---|
9 | * Permission to use, modify and distribute this software is granted |
---|
10 | * provided that this copyright notice appears in all copies. For |
---|
11 | * precise terms see the accompanying LICENSE file. |
---|
12 | * |
---|
13 | * This software is provided "AS IS" with no warranty of any kind, |
---|
14 | * express or implied, and with no claim as to its suitability for any |
---|
15 | * purpose. |
---|
16 | * |
---|
17 | */ |
---|
18 | |
---|
19 | #ifndef LEMON_MAPS_H |
---|
20 | #define LEMON_MAPS_H |
---|
21 | |
---|
22 | #include <iterator> |
---|
23 | #include <functional> |
---|
24 | #include <vector> |
---|
25 | |
---|
26 | #include <lemon/bits/utility.h> |
---|
27 | // #include <lemon/bits/traits.h> |
---|
28 | |
---|
29 | ///\file |
---|
30 | ///\ingroup maps |
---|
31 | ///\brief Miscellaneous property maps |
---|
32 | /// |
---|
33 | #include <map> |
---|
34 | |
---|
35 | namespace lemon { |
---|
36 | |
---|
37 | /// \addtogroup maps |
---|
38 | /// @{ |
---|
39 | |
---|
40 | /// Base class of maps. |
---|
41 | |
---|
42 | /// Base class of maps. |
---|
43 | /// It provides the necessary <tt>typedef</tt>s required by the map concept. |
---|
44 | template<typename K, typename T> |
---|
45 | class MapBase { |
---|
46 | public: |
---|
47 | /// The key type of the map. |
---|
48 | typedef K Key; |
---|
49 | /// The value type of the map. (The type of objects associated with the keys). |
---|
50 | typedef T Value; |
---|
51 | }; |
---|
52 | |
---|
53 | /// Null map. (a.k.a. DoNothingMap) |
---|
54 | |
---|
55 | /// This map can be used if you have to provide a map only for |
---|
56 | /// its type definitions, or if you have to provide a writable map, |
---|
57 | /// but data written to it is not required (i.e. it will be sent to |
---|
58 | /// <tt>/dev/null</tt>). |
---|
59 | template<typename K, typename T> |
---|
60 | class NullMap : public MapBase<K, T> { |
---|
61 | public: |
---|
62 | typedef MapBase<K, T> Parent; |
---|
63 | typedef typename Parent::Key Key; |
---|
64 | typedef typename Parent::Value Value; |
---|
65 | |
---|
66 | /// Gives back a default constructed element. |
---|
67 | T operator[](const K&) const { return T(); } |
---|
68 | /// Absorbs the value. |
---|
69 | void set(const K&, const T&) {} |
---|
70 | }; |
---|
71 | |
---|
72 | ///Returns a \c NullMap class |
---|
73 | |
---|
74 | ///This function just returns a \c NullMap class. |
---|
75 | ///\relates NullMap |
---|
76 | template <typename K, typename V> |
---|
77 | NullMap<K, V> nullMap() { |
---|
78 | return NullMap<K, V>(); |
---|
79 | } |
---|
80 | |
---|
81 | |
---|
82 | /// Constant map. |
---|
83 | |
---|
84 | /// This is a \ref concepts::ReadMap "readable" map which assigns a |
---|
85 | /// specified value to each key. |
---|
86 | /// In other aspects it is equivalent to \c NullMap. |
---|
87 | template<typename K, typename T> |
---|
88 | class ConstMap : public MapBase<K, T> { |
---|
89 | private: |
---|
90 | T v; |
---|
91 | public: |
---|
92 | |
---|
93 | typedef MapBase<K, T> Parent; |
---|
94 | typedef typename Parent::Key Key; |
---|
95 | typedef typename Parent::Value Value; |
---|
96 | |
---|
97 | /// Default constructor |
---|
98 | |
---|
99 | /// Default constructor. |
---|
100 | /// The value of the map will be uninitialized. |
---|
101 | /// (More exactly it will be default constructed.) |
---|
102 | ConstMap() {} |
---|
103 | |
---|
104 | /// Constructor with specified initial value |
---|
105 | |
---|
106 | /// Constructor with specified initial value. |
---|
107 | /// \param _v is the initial value of the map. |
---|
108 | ConstMap(const T &_v) : v(_v) {} |
---|
109 | |
---|
110 | ///\e |
---|
111 | T operator[](const K&) const { return v; } |
---|
112 | |
---|
113 | ///\e |
---|
114 | void setAll(const T &t) { |
---|
115 | v = t; |
---|
116 | } |
---|
117 | |
---|
118 | template<typename T1> |
---|
119 | ConstMap(const ConstMap<K, T1> &, const T &_v) : v(_v) {} |
---|
120 | }; |
---|
121 | |
---|
122 | ///Returns a \c ConstMap class |
---|
123 | |
---|
124 | ///This function just returns a \c ConstMap class. |
---|
125 | ///\relates ConstMap |
---|
126 | template<typename K, typename V> |
---|
127 | inline ConstMap<K, V> constMap(const V &v) { |
---|
128 | return ConstMap<K, V>(v); |
---|
129 | } |
---|
130 | |
---|
131 | |
---|
132 | template<typename T, T v> |
---|
133 | struct Const { }; |
---|
134 | |
---|
135 | /// Constant map with inlined constant value. |
---|
136 | |
---|
137 | /// This is a \ref concepts::ReadMap "readable" map which assigns a |
---|
138 | /// specified value to each key. |
---|
139 | /// In other aspects it is equivalent to \c NullMap. |
---|
140 | template<typename K, typename V, V v> |
---|
141 | class ConstMap<K, Const<V, v> > : public MapBase<K, V> { |
---|
142 | public: |
---|
143 | typedef MapBase<K, V> Parent; |
---|
144 | typedef typename Parent::Key Key; |
---|
145 | typedef typename Parent::Value Value; |
---|
146 | |
---|
147 | ConstMap() { } |
---|
148 | ///\e |
---|
149 | V operator[](const K&) const { return v; } |
---|
150 | ///\e |
---|
151 | void set(const K&, const V&) { } |
---|
152 | }; |
---|
153 | |
---|
154 | ///Returns a \c ConstMap class with inlined value |
---|
155 | |
---|
156 | ///This function just returns a \c ConstMap class with inlined value. |
---|
157 | ///\relates ConstMap |
---|
158 | template<typename K, typename V, V v> |
---|
159 | inline ConstMap<K, Const<V, v> > constMap() { |
---|
160 | return ConstMap<K, Const<V, v> >(); |
---|
161 | } |
---|
162 | |
---|
163 | ///Map based on \c std::map |
---|
164 | |
---|
165 | ///This is essentially a wrapper for \c std::map with addition that |
---|
166 | ///you can specify a default value different from \c Value(). |
---|
167 | ///It meets the \ref concepts::ReferenceMap "ReferenceMap" concept. |
---|
168 | template <typename K, typename T, typename Compare = std::less<K> > |
---|
169 | class StdMap : public MapBase<K, T> { |
---|
170 | template <typename K1, typename T1, typename C1> |
---|
171 | friend class StdMap; |
---|
172 | public: |
---|
173 | |
---|
174 | typedef MapBase<K, T> Parent; |
---|
175 | ///\e |
---|
176 | typedef typename Parent::Key Key; |
---|
177 | ///\e |
---|
178 | typedef typename Parent::Value Value; |
---|
179 | ///\e |
---|
180 | typedef T& Reference; |
---|
181 | ///\e |
---|
182 | typedef const T& ConstReference; |
---|
183 | |
---|
184 | typedef True ReferenceMapTag; |
---|
185 | |
---|
186 | private: |
---|
187 | |
---|
188 | typedef std::map<K, T, Compare> Map; |
---|
189 | Value _value; |
---|
190 | Map _map; |
---|
191 | |
---|
192 | public: |
---|
193 | |
---|
194 | /// Constructor with specified default value |
---|
195 | StdMap(const T& value = T()) : _value(value) {} |
---|
196 | /// \brief Constructs the map from an appropriate \c std::map, and |
---|
197 | /// explicitly specifies a default value. |
---|
198 | template <typename T1, typename Comp1> |
---|
199 | StdMap(const std::map<Key, T1, Comp1> &map, const T& value = T()) |
---|
200 | : _map(map.begin(), map.end()), _value(value) {} |
---|
201 | |
---|
202 | /// \brief Constructs a map from an other \ref StdMap. |
---|
203 | template<typename T1, typename Comp1> |
---|
204 | StdMap(const StdMap<Key, T1, Comp1> &c) |
---|
205 | : _map(c._map.begin(), c._map.end()), _value(c._value) {} |
---|
206 | |
---|
207 | private: |
---|
208 | |
---|
209 | StdMap& operator=(const StdMap&); |
---|
210 | |
---|
211 | public: |
---|
212 | |
---|
213 | ///\e |
---|
214 | Reference operator[](const Key &k) { |
---|
215 | typename Map::iterator it = _map.lower_bound(k); |
---|
216 | if (it != _map.end() && !_map.key_comp()(k, it->first)) |
---|
217 | return it->second; |
---|
218 | else |
---|
219 | return _map.insert(it, std::make_pair(k, _value))->second; |
---|
220 | } |
---|
221 | |
---|
222 | /// \e |
---|
223 | ConstReference operator[](const Key &k) const { |
---|
224 | typename Map::const_iterator it = _map.find(k); |
---|
225 | if (it != _map.end()) |
---|
226 | return it->second; |
---|
227 | else |
---|
228 | return _value; |
---|
229 | } |
---|
230 | |
---|
231 | /// \e |
---|
232 | void set(const Key &k, const T &t) { |
---|
233 | typename Map::iterator it = _map.lower_bound(k); |
---|
234 | if (it != _map.end() && !_map.key_comp()(k, it->first)) |
---|
235 | it->second = t; |
---|
236 | else |
---|
237 | _map.insert(it, std::make_pair(k, t)); |
---|
238 | } |
---|
239 | |
---|
240 | /// \e |
---|
241 | void setAll(const T &t) { |
---|
242 | _value = t; |
---|
243 | _map.clear(); |
---|
244 | } |
---|
245 | |
---|
246 | }; |
---|
247 | |
---|
248 | ///Returns a \c StdMap class |
---|
249 | |
---|
250 | ///This function just returns a \c StdMap class with specified |
---|
251 | ///default value. |
---|
252 | ///\relates StdMap |
---|
253 | template<typename K, typename V, typename Compare = std::less<K> > |
---|
254 | inline StdMap<K, V, Compare> stdMap(const V& value = V()) { |
---|
255 | return StdMap<K, V, Compare>(value); |
---|
256 | } |
---|
257 | |
---|
258 | ///Returns a \c StdMap class created from an appropriate std::map |
---|
259 | |
---|
260 | ///This function just returns a \c StdMap class created from an |
---|
261 | ///appropriate std::map. |
---|
262 | ///\relates StdMap |
---|
263 | template<typename K, typename V, typename Compare = std::less<K> > |
---|
264 | inline StdMap<K, V, Compare> stdMap( const std::map<K, V, Compare> &map, |
---|
265 | const V& value = V() ) { |
---|
266 | return StdMap<K, V, Compare>(map, value); |
---|
267 | } |
---|
268 | |
---|
269 | /// \brief Map for storing values for keys from the range <tt>[0..size-1]</tt> |
---|
270 | /// |
---|
271 | /// This map has the <tt>[0..size-1]</tt> keyset and the values |
---|
272 | /// are stored in a \c std::vector<T> container. It can be used with |
---|
273 | /// some data structures, for example \c UnionFind, \c BinHeap, when |
---|
274 | /// the used items are small integer numbers. |
---|
275 | /// This map meets the \ref concepts::ReferenceMap "ReferenceMap" concept. |
---|
276 | /// |
---|
277 | /// \todo Revise its name |
---|
278 | template <typename T> |
---|
279 | class IntegerMap : public MapBase<int, T> { |
---|
280 | |
---|
281 | template <typename T1> |
---|
282 | friend class IntegerMap; |
---|
283 | |
---|
284 | public: |
---|
285 | |
---|
286 | typedef MapBase<int, T> Parent; |
---|
287 | ///\e |
---|
288 | typedef typename Parent::Key Key; |
---|
289 | ///\e |
---|
290 | typedef typename Parent::Value Value; |
---|
291 | ///\e |
---|
292 | typedef T& Reference; |
---|
293 | ///\e |
---|
294 | typedef const T& ConstReference; |
---|
295 | |
---|
296 | typedef True ReferenceMapTag; |
---|
297 | |
---|
298 | private: |
---|
299 | |
---|
300 | typedef std::vector<T> Vector; |
---|
301 | Vector _vector; |
---|
302 | |
---|
303 | public: |
---|
304 | |
---|
305 | /// Constructor with specified default value |
---|
306 | IntegerMap(int size = 0, const T& value = T()) : _vector(size, value) {} |
---|
307 | |
---|
308 | /// \brief Constructs the map from an appropriate \c std::vector. |
---|
309 | template <typename T1> |
---|
310 | IntegerMap(const std::vector<T1>& vector) |
---|
311 | : _vector(vector.begin(), vector.end()) {} |
---|
312 | |
---|
313 | /// \brief Constructs a map from an other \ref IntegerMap. |
---|
314 | template <typename T1> |
---|
315 | IntegerMap(const IntegerMap<T1> &c) |
---|
316 | : _vector(c._vector.begin(), c._vector.end()) {} |
---|
317 | |
---|
318 | /// \brief Resize the container |
---|
319 | void resize(int size, const T& value = T()) { |
---|
320 | _vector.resize(size, value); |
---|
321 | } |
---|
322 | |
---|
323 | private: |
---|
324 | |
---|
325 | IntegerMap& operator=(const IntegerMap&); |
---|
326 | |
---|
327 | public: |
---|
328 | |
---|
329 | ///\e |
---|
330 | Reference operator[](Key k) { |
---|
331 | return _vector[k]; |
---|
332 | } |
---|
333 | |
---|
334 | /// \e |
---|
335 | ConstReference operator[](Key k) const { |
---|
336 | return _vector[k]; |
---|
337 | } |
---|
338 | |
---|
339 | /// \e |
---|
340 | void set(const Key &k, const T& t) { |
---|
341 | _vector[k] = t; |
---|
342 | } |
---|
343 | |
---|
344 | }; |
---|
345 | |
---|
346 | ///Returns an \c IntegerMap class |
---|
347 | |
---|
348 | ///This function just returns an \c IntegerMap class. |
---|
349 | ///\relates IntegerMap |
---|
350 | template<typename T> |
---|
351 | inline IntegerMap<T> integerMap(int size = 0, const T& value = T()) { |
---|
352 | return IntegerMap<T>(size, value); |
---|
353 | } |
---|
354 | |
---|
355 | /// @} |
---|
356 | |
---|
357 | /// \addtogroup map_adaptors |
---|
358 | /// @{ |
---|
359 | |
---|
360 | /// \brief Identity map. |
---|
361 | /// |
---|
362 | /// This map gives back the given key as value without any |
---|
363 | /// modification. |
---|
364 | template <typename T> |
---|
365 | class IdentityMap : public MapBase<T, T> { |
---|
366 | public: |
---|
367 | typedef MapBase<T, T> Parent; |
---|
368 | typedef typename Parent::Key Key; |
---|
369 | typedef typename Parent::Value Value; |
---|
370 | |
---|
371 | /// \e |
---|
372 | const T& operator[](const T& t) const { |
---|
373 | return t; |
---|
374 | } |
---|
375 | }; |
---|
376 | |
---|
377 | ///Returns an \c IdentityMap class |
---|
378 | |
---|
379 | ///This function just returns an \c IdentityMap class. |
---|
380 | ///\relates IdentityMap |
---|
381 | template<typename T> |
---|
382 | inline IdentityMap<T> identityMap() { |
---|
383 | return IdentityMap<T>(); |
---|
384 | } |
---|
385 | |
---|
386 | |
---|
387 | ///\brief Convert the \c Value of a map to another type using |
---|
388 | ///the default conversion. |
---|
389 | /// |
---|
390 | ///This \ref concepts::ReadMap "read only map" |
---|
391 | ///converts the \c Value of a map to type \c T. |
---|
392 | ///Its \c Key is inherited from \c M. |
---|
393 | template <typename M, typename T> |
---|
394 | class ConvertMap : public MapBase<typename M::Key, T> { |
---|
395 | const M& m; |
---|
396 | public: |
---|
397 | typedef MapBase<typename M::Key, T> Parent; |
---|
398 | typedef typename Parent::Key Key; |
---|
399 | typedef typename Parent::Value Value; |
---|
400 | |
---|
401 | ///Constructor |
---|
402 | |
---|
403 | ///Constructor. |
---|
404 | ///\param _m is the underlying map. |
---|
405 | ConvertMap(const M &_m) : m(_m) {}; |
---|
406 | |
---|
407 | ///\e |
---|
408 | Value operator[](const Key& k) const {return m[k];} |
---|
409 | }; |
---|
410 | |
---|
411 | ///Returns a \c ConvertMap class |
---|
412 | |
---|
413 | ///This function just returns a \c ConvertMap class. |
---|
414 | ///\relates ConvertMap |
---|
415 | template<typename T, typename M> |
---|
416 | inline ConvertMap<M, T> convertMap(const M &m) { |
---|
417 | return ConvertMap<M, T>(m); |
---|
418 | } |
---|
419 | |
---|
420 | ///Simple wrapping of a map |
---|
421 | |
---|
422 | ///This \ref concepts::ReadMap "read only map" returns the simple |
---|
423 | ///wrapping of the given map. Sometimes the reference maps cannot be |
---|
424 | ///combined with simple read maps. This map adaptor wraps the given |
---|
425 | ///map to simple read map. |
---|
426 | /// |
---|
427 | ///\sa SimpleWriteMap |
---|
428 | /// |
---|
429 | /// \todo Revise the misleading name |
---|
430 | template<typename M> |
---|
431 | class SimpleMap : public MapBase<typename M::Key, typename M::Value> { |
---|
432 | const M& m; |
---|
433 | |
---|
434 | public: |
---|
435 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
436 | typedef typename Parent::Key Key; |
---|
437 | typedef typename Parent::Value Value; |
---|
438 | |
---|
439 | ///Constructor |
---|
440 | SimpleMap(const M &_m) : m(_m) {}; |
---|
441 | ///\e |
---|
442 | Value operator[](Key k) const {return m[k];} |
---|
443 | }; |
---|
444 | |
---|
445 | ///Returns a \c SimpleMap class |
---|
446 | |
---|
447 | ///This function just returns a \c SimpleMap class. |
---|
448 | ///\relates SimpleMap |
---|
449 | template<typename M> |
---|
450 | inline SimpleMap<M> simpleMap(const M &m) { |
---|
451 | return SimpleMap<M>(m); |
---|
452 | } |
---|
453 | |
---|
454 | ///Simple writable wrapping of a map |
---|
455 | |
---|
456 | ///This \ref concepts::ReadWriteMap "read-write map" returns the simple |
---|
457 | ///wrapping of the given map. Sometimes the reference maps cannot be |
---|
458 | ///combined with simple read-write maps. This map adaptor wraps the |
---|
459 | ///given map to simple read-write map. |
---|
460 | /// |
---|
461 | ///\sa SimpleMap |
---|
462 | /// |
---|
463 | /// \todo Revise the misleading name |
---|
464 | template<typename M> |
---|
465 | class SimpleWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
466 | M& m; |
---|
467 | |
---|
468 | public: |
---|
469 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
470 | typedef typename Parent::Key Key; |
---|
471 | typedef typename Parent::Value Value; |
---|
472 | |
---|
473 | ///Constructor |
---|
474 | SimpleWriteMap(M &_m) : m(_m) {}; |
---|
475 | ///\e |
---|
476 | Value operator[](Key k) const {return m[k];} |
---|
477 | ///\e |
---|
478 | void set(Key k, const Value& c) { m.set(k, c); } |
---|
479 | }; |
---|
480 | |
---|
481 | ///Returns a \c SimpleWriteMap class |
---|
482 | |
---|
483 | ///This function just returns a \c SimpleWriteMap class. |
---|
484 | ///\relates SimpleWriteMap |
---|
485 | template<typename M> |
---|
486 | inline SimpleWriteMap<M> simpleWriteMap(M &m) { |
---|
487 | return SimpleWriteMap<M>(m); |
---|
488 | } |
---|
489 | |
---|
490 | ///Sum of two maps |
---|
491 | |
---|
492 | ///This \ref concepts::ReadMap "read only map" returns the sum of the two |
---|
493 | ///given maps. |
---|
494 | ///Its \c Key and \c Value are inherited from \c M1. |
---|
495 | ///The \c Key and \c Value of \c M2 must be convertible to those of \c M1. |
---|
496 | template<typename M1, typename M2> |
---|
497 | class AddMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
498 | const M1& m1; |
---|
499 | const M2& m2; |
---|
500 | |
---|
501 | public: |
---|
502 | typedef MapBase<typename M1::Key, typename M1::Value> Parent; |
---|
503 | typedef typename Parent::Key Key; |
---|
504 | typedef typename Parent::Value Value; |
---|
505 | |
---|
506 | ///Constructor |
---|
507 | AddMap(const M1 &_m1,const M2 &_m2) : m1(_m1), m2(_m2) {}; |
---|
508 | ///\e |
---|
509 | Value operator[](Key k) const {return m1[k]+m2[k];} |
---|
510 | }; |
---|
511 | |
---|
512 | ///Returns an \c AddMap class |
---|
513 | |
---|
514 | ///This function just returns an \c AddMap class. |
---|
515 | ///\todo Extend the documentation: how to call these type of functions? |
---|
516 | /// |
---|
517 | ///\relates AddMap |
---|
518 | template<typename M1, typename M2> |
---|
519 | inline AddMap<M1, M2> addMap(const M1 &m1,const M2 &m2) { |
---|
520 | return AddMap<M1, M2>(m1,m2); |
---|
521 | } |
---|
522 | |
---|
523 | ///Shift a map with a constant. |
---|
524 | |
---|
525 | ///This \ref concepts::ReadMap "read only map" returns the sum of the |
---|
526 | ///given map and a constant value. |
---|
527 | ///Its \c Key and \c Value are inherited from \c M. |
---|
528 | /// |
---|
529 | ///Actually, |
---|
530 | ///\code |
---|
531 | /// ShiftMap<X> sh(x,v); |
---|
532 | ///\endcode |
---|
533 | ///is equivalent to |
---|
534 | ///\code |
---|
535 | /// ConstMap<X::Key, X::Value> c_tmp(v); |
---|
536 | /// AddMap<X, ConstMap<X::Key, X::Value> > sh(x,v); |
---|
537 | ///\endcode |
---|
538 | /// |
---|
539 | ///\sa ShiftWriteMap |
---|
540 | template<typename M, typename C = typename M::Value> |
---|
541 | class ShiftMap : public MapBase<typename M::Key, typename M::Value> { |
---|
542 | const M& m; |
---|
543 | C v; |
---|
544 | public: |
---|
545 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
546 | typedef typename Parent::Key Key; |
---|
547 | typedef typename Parent::Value Value; |
---|
548 | |
---|
549 | ///Constructor |
---|
550 | |
---|
551 | ///Constructor. |
---|
552 | ///\param _m is the undelying map. |
---|
553 | ///\param _v is the shift value. |
---|
554 | ShiftMap(const M &_m, const C &_v ) : m(_m), v(_v) {}; |
---|
555 | ///\e |
---|
556 | Value operator[](Key k) const {return m[k] + v;} |
---|
557 | }; |
---|
558 | |
---|
559 | ///Shift a map with a constant (ReadWrite version). |
---|
560 | |
---|
561 | ///This \ref concepts::ReadWriteMap "read-write map" returns the sum of the |
---|
562 | ///given map and a constant value. It makes also possible to write the map. |
---|
563 | ///Its \c Key and \c Value are inherited from \c M. |
---|
564 | /// |
---|
565 | ///\sa ShiftMap |
---|
566 | template<typename M, typename C = typename M::Value> |
---|
567 | class ShiftWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
568 | M& m; |
---|
569 | C v; |
---|
570 | public: |
---|
571 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
572 | typedef typename Parent::Key Key; |
---|
573 | typedef typename Parent::Value Value; |
---|
574 | |
---|
575 | ///Constructor |
---|
576 | |
---|
577 | ///Constructor. |
---|
578 | ///\param _m is the undelying map. |
---|
579 | ///\param _v is the shift value. |
---|
580 | ShiftWriteMap(M &_m, const C &_v ) : m(_m), v(_v) {}; |
---|
581 | /// \e |
---|
582 | Value operator[](Key k) const {return m[k] + v;} |
---|
583 | /// \e |
---|
584 | void set(Key k, const Value& c) { m.set(k, c - v); } |
---|
585 | }; |
---|
586 | |
---|
587 | ///Returns a \c ShiftMap class |
---|
588 | |
---|
589 | ///This function just returns a \c ShiftMap class. |
---|
590 | ///\relates ShiftMap |
---|
591 | template<typename M, typename C> |
---|
592 | inline ShiftMap<M, C> shiftMap(const M &m,const C &v) { |
---|
593 | return ShiftMap<M, C>(m,v); |
---|
594 | } |
---|
595 | |
---|
596 | ///Returns a \c ShiftWriteMap class |
---|
597 | |
---|
598 | ///This function just returns a \c ShiftWriteMap class. |
---|
599 | ///\relates ShiftWriteMap |
---|
600 | template<typename M, typename C> |
---|
601 | inline ShiftWriteMap<M, C> shiftMap(M &m,const C &v) { |
---|
602 | return ShiftWriteMap<M, C>(m,v); |
---|
603 | } |
---|
604 | |
---|
605 | ///Difference of two maps |
---|
606 | |
---|
607 | ///This \ref concepts::ReadMap "read only map" returns the difference |
---|
608 | ///of the values of the two given maps. |
---|
609 | ///Its \c Key and \c Value are inherited from \c M1. |
---|
610 | ///The \c Key and \c Value of \c M2 must be convertible to those of \c M1. |
---|
611 | /// |
---|
612 | /// \todo Revise the misleading name |
---|
613 | template<typename M1, typename M2> |
---|
614 | class SubMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
615 | const M1& m1; |
---|
616 | const M2& m2; |
---|
617 | public: |
---|
618 | typedef MapBase<typename M1::Key, typename M1::Value> Parent; |
---|
619 | typedef typename Parent::Key Key; |
---|
620 | typedef typename Parent::Value Value; |
---|
621 | |
---|
622 | ///Constructor |
---|
623 | SubMap(const M1 &_m1,const M2 &_m2) : m1(_m1), m2(_m2) {}; |
---|
624 | /// \e |
---|
625 | Value operator[](Key k) const {return m1[k]-m2[k];} |
---|
626 | }; |
---|
627 | |
---|
628 | ///Returns a \c SubMap class |
---|
629 | |
---|
630 | ///This function just returns a \c SubMap class. |
---|
631 | /// |
---|
632 | ///\relates SubMap |
---|
633 | template<typename M1, typename M2> |
---|
634 | inline SubMap<M1, M2> subMap(const M1 &m1, const M2 &m2) { |
---|
635 | return SubMap<M1, M2>(m1, m2); |
---|
636 | } |
---|
637 | |
---|
638 | ///Product of two maps |
---|
639 | |
---|
640 | ///This \ref concepts::ReadMap "read only map" returns the product of the |
---|
641 | ///values of the two given maps. |
---|
642 | ///Its \c Key and \c Value are inherited from \c M1. |
---|
643 | ///The \c Key and \c Value of \c M2 must be convertible to those of \c M1. |
---|
644 | template<typename M1, typename M2> |
---|
645 | class MulMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
646 | const M1& m1; |
---|
647 | const M2& m2; |
---|
648 | public: |
---|
649 | typedef MapBase<typename M1::Key, typename M1::Value> Parent; |
---|
650 | typedef typename Parent::Key Key; |
---|
651 | typedef typename Parent::Value Value; |
---|
652 | |
---|
653 | ///Constructor |
---|
654 | MulMap(const M1 &_m1,const M2 &_m2) : m1(_m1), m2(_m2) {}; |
---|
655 | /// \e |
---|
656 | Value operator[](Key k) const {return m1[k]*m2[k];} |
---|
657 | }; |
---|
658 | |
---|
659 | ///Returns a \c MulMap class |
---|
660 | |
---|
661 | ///This function just returns a \c MulMap class. |
---|
662 | ///\relates MulMap |
---|
663 | template<typename M1, typename M2> |
---|
664 | inline MulMap<M1, M2> mulMap(const M1 &m1,const M2 &m2) { |
---|
665 | return MulMap<M1, M2>(m1,m2); |
---|
666 | } |
---|
667 | |
---|
668 | ///Scales a map with a constant. |
---|
669 | |
---|
670 | ///This \ref concepts::ReadMap "read only map" returns the value of the |
---|
671 | ///given map multiplied from the left side with a constant value. |
---|
672 | ///Its \c Key and \c Value are inherited from \c M. |
---|
673 | /// |
---|
674 | ///Actually, |
---|
675 | ///\code |
---|
676 | /// ScaleMap<X> sc(x,v); |
---|
677 | ///\endcode |
---|
678 | ///is equivalent to |
---|
679 | ///\code |
---|
680 | /// ConstMap<X::Key, X::Value> c_tmp(v); |
---|
681 | /// MulMap<X, ConstMap<X::Key, X::Value> > sc(x,v); |
---|
682 | ///\endcode |
---|
683 | /// |
---|
684 | ///\sa ScaleWriteMap |
---|
685 | template<typename M, typename C = typename M::Value> |
---|
686 | class ScaleMap : public MapBase<typename M::Key, typename M::Value> { |
---|
687 | const M& m; |
---|
688 | C v; |
---|
689 | public: |
---|
690 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
691 | typedef typename Parent::Key Key; |
---|
692 | typedef typename Parent::Value Value; |
---|
693 | |
---|
694 | ///Constructor |
---|
695 | |
---|
696 | ///Constructor. |
---|
697 | ///\param _m is the undelying map. |
---|
698 | ///\param _v is the scaling value. |
---|
699 | ScaleMap(const M &_m, const C &_v ) : m(_m), v(_v) {}; |
---|
700 | /// \e |
---|
701 | Value operator[](Key k) const {return v * m[k];} |
---|
702 | }; |
---|
703 | |
---|
704 | ///Scales a map with a constant (ReadWrite version). |
---|
705 | |
---|
706 | ///This \ref concepts::ReadWriteMap "read-write map" returns the value of the |
---|
707 | ///given map multiplied from the left side with a constant value. It can |
---|
708 | ///also be used as write map if the \c / operator is defined between |
---|
709 | ///\c Value and \c C and the given multiplier is not zero. |
---|
710 | ///Its \c Key and \c Value are inherited from \c M. |
---|
711 | /// |
---|
712 | ///\sa ScaleMap |
---|
713 | template<typename M, typename C = typename M::Value> |
---|
714 | class ScaleWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
715 | M& m; |
---|
716 | C v; |
---|
717 | public: |
---|
718 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
719 | typedef typename Parent::Key Key; |
---|
720 | typedef typename Parent::Value Value; |
---|
721 | |
---|
722 | ///Constructor |
---|
723 | |
---|
724 | ///Constructor. |
---|
725 | ///\param _m is the undelying map. |
---|
726 | ///\param _v is the scaling value. |
---|
727 | ScaleWriteMap(M &_m, const C &_v ) : m(_m), v(_v) {}; |
---|
728 | /// \e |
---|
729 | Value operator[](Key k) const {return v * m[k];} |
---|
730 | /// \e |
---|
731 | void set(Key k, const Value& c) { m.set(k, c / v);} |
---|
732 | }; |
---|
733 | |
---|
734 | ///Returns a \c ScaleMap class |
---|
735 | |
---|
736 | ///This function just returns a \c ScaleMap class. |
---|
737 | ///\relates ScaleMap |
---|
738 | template<typename M, typename C> |
---|
739 | inline ScaleMap<M, C> scaleMap(const M &m,const C &v) { |
---|
740 | return ScaleMap<M, C>(m,v); |
---|
741 | } |
---|
742 | |
---|
743 | ///Returns a \c ScaleWriteMap class |
---|
744 | |
---|
745 | ///This function just returns a \c ScaleWriteMap class. |
---|
746 | ///\relates ScaleWriteMap |
---|
747 | template<typename M, typename C> |
---|
748 | inline ScaleWriteMap<M, C> scaleMap(M &m,const C &v) { |
---|
749 | return ScaleWriteMap<M, C>(m,v); |
---|
750 | } |
---|
751 | |
---|
752 | ///Quotient of two maps |
---|
753 | |
---|
754 | ///This \ref concepts::ReadMap "read only map" returns the quotient of the |
---|
755 | ///values of the two given maps. |
---|
756 | ///Its \c Key and \c Value are inherited from \c M1. |
---|
757 | ///The \c Key and \c Value of \c M2 must be convertible to those of \c M1. |
---|
758 | template<typename M1, typename M2> |
---|
759 | class DivMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
760 | const M1& m1; |
---|
761 | const M2& m2; |
---|
762 | public: |
---|
763 | typedef MapBase<typename M1::Key, typename M1::Value> Parent; |
---|
764 | typedef typename Parent::Key Key; |
---|
765 | typedef typename Parent::Value Value; |
---|
766 | |
---|
767 | ///Constructor |
---|
768 | DivMap(const M1 &_m1,const M2 &_m2) : m1(_m1), m2(_m2) {}; |
---|
769 | /// \e |
---|
770 | Value operator[](Key k) const {return m1[k]/m2[k];} |
---|
771 | }; |
---|
772 | |
---|
773 | ///Returns a \c DivMap class |
---|
774 | |
---|
775 | ///This function just returns a \c DivMap class. |
---|
776 | ///\relates DivMap |
---|
777 | template<typename M1, typename M2> |
---|
778 | inline DivMap<M1, M2> divMap(const M1 &m1,const M2 &m2) { |
---|
779 | return DivMap<M1, M2>(m1,m2); |
---|
780 | } |
---|
781 | |
---|
782 | ///Composition of two maps |
---|
783 | |
---|
784 | ///This \ref concepts::ReadMap "read only map" returns the composition of |
---|
785 | ///two given maps. |
---|
786 | ///That is to say, if \c m1 is of type \c M1 and \c m2 is of \c M2, |
---|
787 | ///then for |
---|
788 | ///\code |
---|
789 | /// ComposeMap<M1, M2> cm(m1,m2); |
---|
790 | ///\endcode |
---|
791 | /// <tt>cm[x]</tt> will be equal to <tt>m1[m2[x]]</tt>. |
---|
792 | /// |
---|
793 | ///Its \c Key is inherited from \c M2 and its \c Value is from \c M1. |
---|
794 | ///\c M2::Value must be convertible to \c M1::Key. |
---|
795 | /// |
---|
796 | ///\sa CombineMap |
---|
797 | /// |
---|
798 | ///\todo Check the requirements. |
---|
799 | template <typename M1, typename M2> |
---|
800 | class ComposeMap : public MapBase<typename M2::Key, typename M1::Value> { |
---|
801 | const M1& m1; |
---|
802 | const M2& m2; |
---|
803 | public: |
---|
804 | typedef MapBase<typename M2::Key, typename M1::Value> Parent; |
---|
805 | typedef typename Parent::Key Key; |
---|
806 | typedef typename Parent::Value Value; |
---|
807 | |
---|
808 | ///Constructor |
---|
809 | ComposeMap(const M1 &_m1,const M2 &_m2) : m1(_m1), m2(_m2) {}; |
---|
810 | |
---|
811 | /// \e |
---|
812 | |
---|
813 | |
---|
814 | /// \todo Use the MapTraits once it is ported. |
---|
815 | /// |
---|
816 | |
---|
817 | //typename MapTraits<M1>::ConstReturnValue |
---|
818 | typename M1::Value |
---|
819 | operator[](Key k) const {return m1[m2[k]];} |
---|
820 | }; |
---|
821 | |
---|
822 | ///Returns a \c ComposeMap class |
---|
823 | |
---|
824 | ///This function just returns a \c ComposeMap class. |
---|
825 | ///\relates ComposeMap |
---|
826 | template <typename M1, typename M2> |
---|
827 | inline ComposeMap<M1, M2> composeMap(const M1 &m1,const M2 &m2) { |
---|
828 | return ComposeMap<M1, M2>(m1,m2); |
---|
829 | } |
---|
830 | |
---|
831 | ///Combine of two maps using an STL (binary) functor. |
---|
832 | |
---|
833 | ///Combine of two maps using an STL (binary) functor. |
---|
834 | /// |
---|
835 | ///This \ref concepts::ReadMap "read only map" takes two maps and a |
---|
836 | ///binary functor and returns the composition of the two |
---|
837 | ///given maps unsing the functor. |
---|
838 | ///That is to say, if \c m1 and \c m2 is of type \c M1 and \c M2 |
---|
839 | ///and \c f is of \c F, then for |
---|
840 | ///\code |
---|
841 | /// CombineMap<M1,M2,F,V> cm(m1,m2,f); |
---|
842 | ///\endcode |
---|
843 | /// <tt>cm[x]</tt> will be equal to <tt>f(m1[x],m2[x])</tt> |
---|
844 | /// |
---|
845 | ///Its \c Key is inherited from \c M1 and its \c Value is \c V. |
---|
846 | ///\c M2::Value and \c M1::Value must be convertible to the corresponding |
---|
847 | ///input parameter of \c F and the return type of \c F must be convertible |
---|
848 | ///to \c V. |
---|
849 | /// |
---|
850 | ///\sa ComposeMap |
---|
851 | /// |
---|
852 | ///\todo Check the requirements. |
---|
853 | template<typename M1, typename M2, typename F, |
---|
854 | typename V = typename F::result_type> |
---|
855 | class CombineMap : public MapBase<typename M1::Key, V> { |
---|
856 | const M1& m1; |
---|
857 | const M2& m2; |
---|
858 | F f; |
---|
859 | public: |
---|
860 | typedef MapBase<typename M1::Key, V> Parent; |
---|
861 | typedef typename Parent::Key Key; |
---|
862 | typedef typename Parent::Value Value; |
---|
863 | |
---|
864 | ///Constructor |
---|
865 | CombineMap(const M1 &_m1,const M2 &_m2,const F &_f = F()) |
---|
866 | : m1(_m1), m2(_m2), f(_f) {}; |
---|
867 | /// \e |
---|
868 | Value operator[](Key k) const {return f(m1[k],m2[k]);} |
---|
869 | }; |
---|
870 | |
---|
871 | ///Returns a \c CombineMap class |
---|
872 | |
---|
873 | ///This function just returns a \c CombineMap class. |
---|
874 | /// |
---|
875 | ///For example if \c m1 and \c m2 are both \c double valued maps, then |
---|
876 | ///\code |
---|
877 | ///combineMap(m1,m2,std::plus<double>()) |
---|
878 | ///\endcode |
---|
879 | ///is equivalent to |
---|
880 | ///\code |
---|
881 | ///addMap(m1,m2) |
---|
882 | ///\endcode |
---|
883 | /// |
---|
884 | ///This function is specialized for adaptable binary function |
---|
885 | ///classes and C++ functions. |
---|
886 | /// |
---|
887 | ///\relates CombineMap |
---|
888 | template<typename M1, typename M2, typename F, typename V> |
---|
889 | inline CombineMap<M1, M2, F, V> |
---|
890 | combineMap(const M1& m1,const M2& m2, const F& f) { |
---|
891 | return CombineMap<M1, M2, F, V>(m1,m2,f); |
---|
892 | } |
---|
893 | |
---|
894 | template<typename M1, typename M2, typename F> |
---|
895 | inline CombineMap<M1, M2, F, typename F::result_type> |
---|
896 | combineMap(const M1& m1, const M2& m2, const F& f) { |
---|
897 | return combineMap<M1, M2, F, typename F::result_type>(m1,m2,f); |
---|
898 | } |
---|
899 | |
---|
900 | template<typename M1, typename M2, typename K1, typename K2, typename V> |
---|
901 | inline CombineMap<M1, M2, V (*)(K1, K2), V> |
---|
902 | combineMap(const M1 &m1, const M2 &m2, V (*f)(K1, K2)) { |
---|
903 | return combineMap<M1, M2, V (*)(K1, K2), V>(m1,m2,f); |
---|
904 | } |
---|
905 | |
---|
906 | ///Negative value of a map |
---|
907 | |
---|
908 | ///This \ref concepts::ReadMap "read only map" returns the negative |
---|
909 | ///value of the value returned by the given map. |
---|
910 | ///Its \c Key and \c Value are inherited from \c M. |
---|
911 | ///The unary \c - operator must be defined for \c Value, of course. |
---|
912 | /// |
---|
913 | ///\sa NegWriteMap |
---|
914 | template<typename M> |
---|
915 | class NegMap : public MapBase<typename M::Key, typename M::Value> { |
---|
916 | const M& m; |
---|
917 | public: |
---|
918 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
919 | typedef typename Parent::Key Key; |
---|
920 | typedef typename Parent::Value Value; |
---|
921 | |
---|
922 | ///Constructor |
---|
923 | NegMap(const M &_m) : m(_m) {}; |
---|
924 | /// \e |
---|
925 | Value operator[](Key k) const {return -m[k];} |
---|
926 | }; |
---|
927 | |
---|
928 | ///Negative value of a map (ReadWrite version) |
---|
929 | |
---|
930 | ///This \ref concepts::ReadWriteMap "read-write map" returns the negative |
---|
931 | ///value of the value returned by the given map. |
---|
932 | ///Its \c Key and \c Value are inherited from \c M. |
---|
933 | ///The unary \c - operator must be defined for \c Value, of course. |
---|
934 | /// |
---|
935 | /// \sa NegMap |
---|
936 | template<typename M> |
---|
937 | class NegWriteMap : public MapBase<typename M::Key, typename M::Value> { |
---|
938 | M& m; |
---|
939 | public: |
---|
940 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
941 | typedef typename Parent::Key Key; |
---|
942 | typedef typename Parent::Value Value; |
---|
943 | |
---|
944 | ///Constructor |
---|
945 | NegWriteMap(M &_m) : m(_m) {}; |
---|
946 | /// \e |
---|
947 | Value operator[](Key k) const {return -m[k];} |
---|
948 | /// \e |
---|
949 | void set(Key k, const Value& v) { m.set(k, -v); } |
---|
950 | }; |
---|
951 | |
---|
952 | ///Returns a \c NegMap class |
---|
953 | |
---|
954 | ///This function just returns a \c NegMap class. |
---|
955 | ///\relates NegMap |
---|
956 | template <typename M> |
---|
957 | inline NegMap<M> negMap(const M &m) { |
---|
958 | return NegMap<M>(m); |
---|
959 | } |
---|
960 | |
---|
961 | ///Returns a \c NegWriteMap class |
---|
962 | |
---|
963 | ///This function just returns a \c NegWriteMap class. |
---|
964 | ///\relates NegWriteMap |
---|
965 | template <typename M> |
---|
966 | inline NegWriteMap<M> negMap(M &m) { |
---|
967 | return NegWriteMap<M>(m); |
---|
968 | } |
---|
969 | |
---|
970 | ///Absolute value of a map |
---|
971 | |
---|
972 | ///This \ref concepts::ReadMap "read only map" returns the absolute value |
---|
973 | ///of the value returned by the given map. |
---|
974 | ///Its \c Key and \c Value are inherited from \c M. |
---|
975 | ///\c Value must be comparable to \c 0 and the unary \c - |
---|
976 | ///operator must be defined for it, of course. |
---|
977 | template<typename M> |
---|
978 | class AbsMap : public MapBase<typename M::Key, typename M::Value> { |
---|
979 | const M& m; |
---|
980 | public: |
---|
981 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
982 | typedef typename Parent::Key Key; |
---|
983 | typedef typename Parent::Value Value; |
---|
984 | |
---|
985 | ///Constructor |
---|
986 | AbsMap(const M &_m) : m(_m) {}; |
---|
987 | /// \e |
---|
988 | Value operator[](Key k) const { |
---|
989 | Value tmp = m[k]; |
---|
990 | return tmp >= 0 ? tmp : -tmp; |
---|
991 | } |
---|
992 | |
---|
993 | }; |
---|
994 | |
---|
995 | ///Returns an \c AbsMap class |
---|
996 | |
---|
997 | ///This function just returns an \c AbsMap class. |
---|
998 | ///\relates AbsMap |
---|
999 | template<typename M> |
---|
1000 | inline AbsMap<M> absMap(const M &m) { |
---|
1001 | return AbsMap<M>(m); |
---|
1002 | } |
---|
1003 | |
---|
1004 | ///Converts an STL style functor to a map |
---|
1005 | |
---|
1006 | ///This \ref concepts::ReadMap "read only map" returns the value |
---|
1007 | ///of a given functor. |
---|
1008 | /// |
---|
1009 | ///Template parameters \c K and \c V will become its |
---|
1010 | ///\c Key and \c Value. |
---|
1011 | ///In most cases they have to be given explicitly because a |
---|
1012 | ///functor typically does not provide \c argument_type and |
---|
1013 | ///\c result_type typedefs. |
---|
1014 | /// |
---|
1015 | ///Parameter \c F is the type of the used functor. |
---|
1016 | /// |
---|
1017 | ///\sa MapFunctor |
---|
1018 | template<typename F, |
---|
1019 | typename K = typename F::argument_type, |
---|
1020 | typename V = typename F::result_type> |
---|
1021 | class FunctorMap : public MapBase<K, V> { |
---|
1022 | F f; |
---|
1023 | public: |
---|
1024 | typedef MapBase<K, V> Parent; |
---|
1025 | typedef typename Parent::Key Key; |
---|
1026 | typedef typename Parent::Value Value; |
---|
1027 | |
---|
1028 | ///Constructor |
---|
1029 | FunctorMap(const F &_f = F()) : f(_f) {} |
---|
1030 | /// \e |
---|
1031 | Value operator[](Key k) const { return f(k);} |
---|
1032 | }; |
---|
1033 | |
---|
1034 | ///Returns a \c FunctorMap class |
---|
1035 | |
---|
1036 | ///This function just returns a \c FunctorMap class. |
---|
1037 | /// |
---|
1038 | ///This function is specialized for adaptable binary function |
---|
1039 | ///classes and C++ functions. |
---|
1040 | /// |
---|
1041 | ///\relates FunctorMap |
---|
1042 | template<typename K, typename V, typename F> inline |
---|
1043 | FunctorMap<F, K, V> functorMap(const F &f) { |
---|
1044 | return FunctorMap<F, K, V>(f); |
---|
1045 | } |
---|
1046 | |
---|
1047 | template <typename F> inline |
---|
1048 | FunctorMap<F, typename F::argument_type, typename F::result_type> |
---|
1049 | functorMap(const F &f) { |
---|
1050 | return FunctorMap<F, typename F::argument_type, |
---|
1051 | typename F::result_type>(f); |
---|
1052 | } |
---|
1053 | |
---|
1054 | template <typename K, typename V> inline |
---|
1055 | FunctorMap<V (*)(K), K, V> functorMap(V (*f)(K)) { |
---|
1056 | return FunctorMap<V (*)(K), K, V>(f); |
---|
1057 | } |
---|
1058 | |
---|
1059 | |
---|
1060 | ///Converts a map to an STL style (unary) functor |
---|
1061 | |
---|
1062 | ///This class Converts a map to an STL style (unary) functor. |
---|
1063 | ///That is it provides an <tt>operator()</tt> to read its values. |
---|
1064 | /// |
---|
1065 | ///For the sake of convenience it also works as |
---|
1066 | ///a ususal \ref concepts::ReadMap "readable map", |
---|
1067 | ///i.e. <tt>operator[]</tt> and the \c Key and \c Value typedefs also exist. |
---|
1068 | /// |
---|
1069 | ///\sa FunctorMap |
---|
1070 | template <typename M> |
---|
1071 | class MapFunctor : public MapBase<typename M::Key, typename M::Value> { |
---|
1072 | const M& m; |
---|
1073 | public: |
---|
1074 | typedef MapBase<typename M::Key, typename M::Value> Parent; |
---|
1075 | typedef typename Parent::Key Key; |
---|
1076 | typedef typename Parent::Value Value; |
---|
1077 | |
---|
1078 | typedef typename M::Key argument_type; |
---|
1079 | typedef typename M::Value result_type; |
---|
1080 | |
---|
1081 | ///Constructor |
---|
1082 | MapFunctor(const M &_m) : m(_m) {}; |
---|
1083 | ///\e |
---|
1084 | Value operator()(Key k) const {return m[k];} |
---|
1085 | ///\e |
---|
1086 | Value operator[](Key k) const {return m[k];} |
---|
1087 | }; |
---|
1088 | |
---|
1089 | ///Returns a \c MapFunctor class |
---|
1090 | |
---|
1091 | ///This function just returns a \c MapFunctor class. |
---|
1092 | ///\relates MapFunctor |
---|
1093 | template<typename M> |
---|
1094 | inline MapFunctor<M> mapFunctor(const M &m) { |
---|
1095 | return MapFunctor<M>(m); |
---|
1096 | } |
---|
1097 | |
---|
1098 | ///Just readable version of \ref ForkWriteMap |
---|
1099 | |
---|
1100 | ///This map has two \ref concepts::ReadMap "readable map" |
---|
1101 | ///parameters and each read request will be passed just to the |
---|
1102 | ///first map. This class is the just readable map type of \c ForkWriteMap. |
---|
1103 | /// |
---|
1104 | ///The \c Key and \c Value are inherited from \c M1. |
---|
1105 | ///The \c Key and \c Value of \c M2 must be convertible from those of \c M1. |
---|
1106 | /// |
---|
1107 | ///\sa ForkWriteMap |
---|
1108 | /// |
---|
1109 | /// \todo Why is it needed? |
---|
1110 | template<typename M1, typename M2> |
---|
1111 | class ForkMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
1112 | const M1& m1; |
---|
1113 | const M2& m2; |
---|
1114 | public: |
---|
1115 | typedef MapBase<typename M1::Key, typename M1::Value> Parent; |
---|
1116 | typedef typename Parent::Key Key; |
---|
1117 | typedef typename Parent::Value Value; |
---|
1118 | |
---|
1119 | ///Constructor |
---|
1120 | ForkMap(const M1 &_m1, const M2 &_m2) : m1(_m1), m2(_m2) {}; |
---|
1121 | /// \e |
---|
1122 | Value operator[](Key k) const {return m1[k];} |
---|
1123 | }; |
---|
1124 | |
---|
1125 | |
---|
1126 | ///Applies all map setting operations to two maps |
---|
1127 | |
---|
1128 | ///This map has two \ref concepts::WriteMap "writable map" |
---|
1129 | ///parameters and each write request will be passed to both of them. |
---|
1130 | ///If \c M1 is also \ref concepts::ReadMap "readable", |
---|
1131 | ///then the read operations will return the |
---|
1132 | ///corresponding values of \c M1. |
---|
1133 | /// |
---|
1134 | ///The \c Key and \c Value are inherited from \c M1. |
---|
1135 | ///The \c Key and \c Value of \c M2 must be convertible from those of \c M1. |
---|
1136 | /// |
---|
1137 | ///\sa ForkMap |
---|
1138 | template<typename M1, typename M2> |
---|
1139 | class ForkWriteMap : public MapBase<typename M1::Key, typename M1::Value> { |
---|
1140 | M1& m1; |
---|
1141 | M2& m2; |
---|
1142 | public: |
---|
1143 | typedef MapBase<typename M1::Key, typename M1::Value> Parent; |
---|
1144 | typedef typename Parent::Key Key; |
---|
1145 | typedef typename Parent::Value Value; |
---|
1146 | |
---|
1147 | ///Constructor |
---|
1148 | ForkWriteMap(M1 &_m1, M2 &_m2) : m1(_m1), m2(_m2) {}; |
---|
1149 | ///\e |
---|
1150 | Value operator[](Key k) const {return m1[k];} |
---|
1151 | ///\e |
---|
1152 | void set(Key k, const Value &v) {m1.set(k,v); m2.set(k,v);} |
---|
1153 | }; |
---|
1154 | |
---|
1155 | ///Returns a \c ForkMap class |
---|
1156 | |
---|
1157 | ///This function just returns a \c ForkMap class. |
---|
1158 | ///\relates ForkMap |
---|
1159 | template <typename M1, typename M2> |
---|
1160 | inline ForkMap<M1, M2> forkMap(const M1 &m1, const M2 &m2) { |
---|
1161 | return ForkMap<M1, M2>(m1,m2); |
---|
1162 | } |
---|
1163 | |
---|
1164 | ///Returns a \c ForkWriteMap class |
---|
1165 | |
---|
1166 | ///This function just returns a \c ForkWriteMap class. |
---|
1167 | ///\relates ForkWriteMap |
---|
1168 | template <typename M1, typename M2> |
---|
1169 | inline ForkWriteMap<M1, M2> forkMap(M1 &m1, M2 &m2) { |
---|
1170 | return ForkWriteMap<M1, M2>(m1,m2); |
---|
1171 | } |
---|
1172 | |
---|
1173 | |
---|
1174 | |
---|
1175 | /* ************* BOOL MAPS ******************* */ |
---|
1176 | |
---|
1177 | ///Logical 'not' of a map |
---|
1178 | |
---|
1179 | ///This bool \ref concepts::ReadMap "read only map" returns the |
---|
1180 | ///logical negation of the value returned by the given map. |
---|
1181 | ///Its \c Key is inherited from \c M, its \c Value is \c bool. |
---|
1182 | /// |
---|
1183 | ///\sa NotWriteMap |
---|
1184 | template <typename M> |
---|
1185 | class NotMap : public MapBase<typename M::Key, bool> { |
---|
1186 | const M& m; |
---|
1187 | public: |
---|
1188 | typedef MapBase<typename M::Key, bool> Parent; |
---|
1189 | typedef typename Parent::Key Key; |
---|
1190 | typedef typename Parent::Value Value; |
---|
1191 | |
---|
1192 | /// Constructor |
---|
1193 | NotMap(const M &_m) : m(_m) {}; |
---|
1194 | ///\e |
---|
1195 | Value operator[](Key k) const {return !m[k];} |
---|
1196 | }; |
---|
1197 | |
---|
1198 | ///Logical 'not' of a map (ReadWrie version) |
---|
1199 | |
---|
1200 | ///This bool \ref concepts::ReadWriteMap "read-write map" returns the |
---|
1201 | ///logical negation of the value returned by the given map. When it is set, |
---|
1202 | ///the opposite value is set to the original map. |
---|
1203 | ///Its \c Key is inherited from \c M, its \c Value is \c bool. |
---|
1204 | /// |
---|
1205 | ///\sa NotMap |
---|
1206 | template <typename M> |
---|
1207 | class NotWriteMap : public MapBase<typename M::Key, bool> { |
---|
1208 | M& m; |
---|
1209 | public: |
---|
1210 | typedef MapBase<typename M::Key, bool> Parent; |
---|
1211 | typedef typename Parent::Key Key; |
---|
1212 | typedef typename Parent::Value Value; |
---|
1213 | |
---|
1214 | /// Constructor |
---|
1215 | NotWriteMap(M &_m) : m(_m) {}; |
---|
1216 | ///\e |
---|
1217 | Value operator[](Key k) const {return !m[k];} |
---|
1218 | ///\e |
---|
1219 | void set(Key k, bool v) { m.set(k, !v); } |
---|
1220 | }; |
---|
1221 | |
---|
1222 | ///Returns a \c NotMap class |
---|
1223 | |
---|
1224 | ///This function just returns a \c NotMap class. |
---|
1225 | ///\relates NotMap |
---|
1226 | template <typename M> |
---|
1227 | inline NotMap<M> notMap(const M &m) { |
---|
1228 | return NotMap<M>(m); |
---|
1229 | } |
---|
1230 | |
---|
1231 | ///Returns a \c NotWriteMap class |
---|
1232 | |
---|
1233 | ///This function just returns a \c NotWriteMap class. |
---|
1234 | ///\relates NotWriteMap |
---|
1235 | template <typename M> |
---|
1236 | inline NotWriteMap<M> notMap(M &m) { |
---|
1237 | return NotWriteMap<M>(m); |
---|
1238 | } |
---|
1239 | |
---|
1240 | namespace _maps_bits { |
---|
1241 | |
---|
1242 | template <typename Value> |
---|
1243 | struct Identity { |
---|
1244 | typedef Value argument_type; |
---|
1245 | typedef Value result_type; |
---|
1246 | Value operator()(const Value& val) const { |
---|
1247 | return val; |
---|
1248 | } |
---|
1249 | }; |
---|
1250 | |
---|
1251 | template <typename _Iterator, typename Enable = void> |
---|
1252 | struct IteratorTraits { |
---|
1253 | typedef typename std::iterator_traits<_Iterator>::value_type Value; |
---|
1254 | }; |
---|
1255 | |
---|
1256 | template <typename _Iterator> |
---|
1257 | struct IteratorTraits<_Iterator, |
---|
1258 | typename exists<typename _Iterator::container_type>::type> |
---|
1259 | { |
---|
1260 | typedef typename _Iterator::container_type::value_type Value; |
---|
1261 | }; |
---|
1262 | |
---|
1263 | } |
---|
1264 | |
---|
1265 | |
---|
1266 | /// \brief Writable bool map for logging each \c true assigned element |
---|
1267 | /// |
---|
1268 | /// A \ref concepts::ReadWriteMap "read-write" bool map for logging |
---|
1269 | /// each \c true assigned element, i.e it copies all the keys set |
---|
1270 | /// to \c true to the given iterator. |
---|
1271 | /// |
---|
1272 | /// \note The container of the iterator should contain space |
---|
1273 | /// for each element. |
---|
1274 | /// |
---|
1275 | /// The following example shows how you can write the edges found by |
---|
1276 | /// the \ref Prim algorithm directly to the standard output. |
---|
1277 | ///\code |
---|
1278 | /// typedef IdMap<Graph, Edge> EdgeIdMap; |
---|
1279 | /// EdgeIdMap edgeId(graph); |
---|
1280 | /// |
---|
1281 | /// typedef MapFunctor<EdgeIdMap> EdgeIdFunctor; |
---|
1282 | /// EdgeIdFunctor edgeIdFunctor(edgeId); |
---|
1283 | /// |
---|
1284 | /// StoreBoolMap<ostream_iterator<int>, EdgeIdFunctor> |
---|
1285 | /// writerMap(ostream_iterator<int>(cout, " "), edgeIdFunctor); |
---|
1286 | /// |
---|
1287 | /// prim(graph, cost, writerMap); |
---|
1288 | ///\endcode |
---|
1289 | /// |
---|
1290 | ///\sa BackInserterBoolMap |
---|
1291 | ///\sa FrontInserterBoolMap |
---|
1292 | ///\sa InserterBoolMap |
---|
1293 | /// |
---|
1294 | ///\todo Revise the name of this class and the related ones. |
---|
1295 | template <typename _Iterator, |
---|
1296 | typename _Functor = |
---|
1297 | _maps_bits::Identity<typename _maps_bits:: |
---|
1298 | IteratorTraits<_Iterator>::Value> > |
---|
1299 | class StoreBoolMap { |
---|
1300 | public: |
---|
1301 | typedef _Iterator Iterator; |
---|
1302 | |
---|
1303 | typedef typename _Functor::argument_type Key; |
---|
1304 | typedef bool Value; |
---|
1305 | |
---|
1306 | typedef _Functor Functor; |
---|
1307 | |
---|
1308 | /// Constructor |
---|
1309 | StoreBoolMap(Iterator it, const Functor& functor = Functor()) |
---|
1310 | : _begin(it), _end(it), _functor(functor) {} |
---|
1311 | |
---|
1312 | /// Gives back the given iterator set for the first key |
---|
1313 | Iterator begin() const { |
---|
1314 | return _begin; |
---|
1315 | } |
---|
1316 | |
---|
1317 | /// Gives back the the 'after the last' iterator |
---|
1318 | Iterator end() const { |
---|
1319 | return _end; |
---|
1320 | } |
---|
1321 | |
---|
1322 | /// The \c set function of the map |
---|
1323 | void set(const Key& key, Value value) const { |
---|
1324 | if (value) { |
---|
1325 | *_end++ = _functor(key); |
---|
1326 | } |
---|
1327 | } |
---|
1328 | |
---|
1329 | private: |
---|
1330 | Iterator _begin; |
---|
1331 | mutable Iterator _end; |
---|
1332 | Functor _functor; |
---|
1333 | }; |
---|
1334 | |
---|
1335 | /// \brief Writable bool map for logging each \c true assigned element in |
---|
1336 | /// a back insertable container. |
---|
1337 | /// |
---|
1338 | /// Writable bool map for logging each \c true assigned element by pushing |
---|
1339 | /// them into a back insertable container. |
---|
1340 | /// It can be used to retrieve the items into a standard |
---|
1341 | /// container. The next example shows how you can store the |
---|
1342 | /// edges found by the Prim algorithm in a vector. |
---|
1343 | /// |
---|
1344 | ///\code |
---|
1345 | /// vector<Edge> span_tree_edges; |
---|
1346 | /// BackInserterBoolMap<vector<Edge> > inserter_map(span_tree_edges); |
---|
1347 | /// prim(graph, cost, inserter_map); |
---|
1348 | ///\endcode |
---|
1349 | /// |
---|
1350 | ///\sa StoreBoolMap |
---|
1351 | ///\sa FrontInserterBoolMap |
---|
1352 | ///\sa InserterBoolMap |
---|
1353 | template <typename Container, |
---|
1354 | typename Functor = |
---|
1355 | _maps_bits::Identity<typename Container::value_type> > |
---|
1356 | class BackInserterBoolMap { |
---|
1357 | public: |
---|
1358 | typedef typename Functor::argument_type Key; |
---|
1359 | typedef bool Value; |
---|
1360 | |
---|
1361 | /// Constructor |
---|
1362 | BackInserterBoolMap(Container& _container, |
---|
1363 | const Functor& _functor = Functor()) |
---|
1364 | : container(_container), functor(_functor) {} |
---|
1365 | |
---|
1366 | /// The \c set function of the map |
---|
1367 | void set(const Key& key, Value value) { |
---|
1368 | if (value) { |
---|
1369 | container.push_back(functor(key)); |
---|
1370 | } |
---|
1371 | } |
---|
1372 | |
---|
1373 | private: |
---|
1374 | Container& container; |
---|
1375 | Functor functor; |
---|
1376 | }; |
---|
1377 | |
---|
1378 | /// \brief Writable bool map for logging each \c true assigned element in |
---|
1379 | /// a front insertable container. |
---|
1380 | /// |
---|
1381 | /// Writable bool map for logging each \c true assigned element by pushing |
---|
1382 | /// them into a front insertable container. |
---|
1383 | /// It can be used to retrieve the items into a standard |
---|
1384 | /// container. For example see \ref BackInserterBoolMap. |
---|
1385 | /// |
---|
1386 | ///\sa BackInserterBoolMap |
---|
1387 | ///\sa InserterBoolMap |
---|
1388 | template <typename Container, |
---|
1389 | typename Functor = |
---|
1390 | _maps_bits::Identity<typename Container::value_type> > |
---|
1391 | class FrontInserterBoolMap { |
---|
1392 | public: |
---|
1393 | typedef typename Functor::argument_type Key; |
---|
1394 | typedef bool Value; |
---|
1395 | |
---|
1396 | /// Constructor |
---|
1397 | FrontInserterBoolMap(Container& _container, |
---|
1398 | const Functor& _functor = Functor()) |
---|
1399 | : container(_container), functor(_functor) {} |
---|
1400 | |
---|
1401 | /// The \c set function of the map |
---|
1402 | void set(const Key& key, Value value) { |
---|
1403 | if (value) { |
---|
1404 | container.push_front(functor(key)); |
---|
1405 | } |
---|
1406 | } |
---|
1407 | |
---|
1408 | private: |
---|
1409 | Container& container; |
---|
1410 | Functor functor; |
---|
1411 | }; |
---|
1412 | |
---|
1413 | /// \brief Writable bool map for storing each \c true assigned element in |
---|
1414 | /// an insertable container. |
---|
1415 | /// |
---|
1416 | /// Writable bool map for storing each \c true assigned element in an |
---|
1417 | /// insertable container. It will insert all the keys set to \c true into |
---|
1418 | /// the container. |
---|
1419 | /// |
---|
1420 | /// For example, if you want to store the cut arcs of the strongly |
---|
1421 | /// connected components in a set you can use the next code: |
---|
1422 | /// |
---|
1423 | ///\code |
---|
1424 | /// set<Arc> cut_arcs; |
---|
1425 | /// InserterBoolMap<set<Arc> > inserter_map(cut_arcs); |
---|
1426 | /// stronglyConnectedCutArcs(digraph, cost, inserter_map); |
---|
1427 | ///\endcode |
---|
1428 | /// |
---|
1429 | ///\sa BackInserterBoolMap |
---|
1430 | ///\sa FrontInserterBoolMap |
---|
1431 | template <typename Container, |
---|
1432 | typename Functor = |
---|
1433 | _maps_bits::Identity<typename Container::value_type> > |
---|
1434 | class InserterBoolMap { |
---|
1435 | public: |
---|
1436 | typedef typename Container::value_type Key; |
---|
1437 | typedef bool Value; |
---|
1438 | |
---|
1439 | /// Constructor with specified iterator |
---|
1440 | |
---|
1441 | /// Constructor with specified iterator. |
---|
1442 | /// \param _container The container for storing the elements. |
---|
1443 | /// \param _it The elements will be inserted before this iterator. |
---|
1444 | /// \param _functor The functor that is used when an element is stored. |
---|
1445 | InserterBoolMap(Container& _container, typename Container::iterator _it, |
---|
1446 | const Functor& _functor = Functor()) |
---|
1447 | : container(_container), it(_it), functor(_functor) {} |
---|
1448 | |
---|
1449 | /// Constructor |
---|
1450 | |
---|
1451 | /// Constructor without specified iterator. |
---|
1452 | /// The elements will be inserted before <tt>_container.end()</tt>. |
---|
1453 | /// \param _container The container for storing the elements. |
---|
1454 | /// \param _functor The functor that is used when an element is stored. |
---|
1455 | InserterBoolMap(Container& _container, const Functor& _functor = Functor()) |
---|
1456 | : container(_container), it(_container.end()), functor(_functor) {} |
---|
1457 | |
---|
1458 | /// The \c set function of the map |
---|
1459 | void set(const Key& key, Value value) { |
---|
1460 | if (value) { |
---|
1461 | it = container.insert(it, functor(key)); |
---|
1462 | ++it; |
---|
1463 | } |
---|
1464 | } |
---|
1465 | |
---|
1466 | private: |
---|
1467 | Container& container; |
---|
1468 | typename Container::iterator it; |
---|
1469 | Functor functor; |
---|
1470 | }; |
---|
1471 | |
---|
1472 | /// \brief Writable bool map for filling each \c true assigned element with a |
---|
1473 | /// given value. |
---|
1474 | /// |
---|
1475 | /// Writable bool map for filling each \c true assigned element with a |
---|
1476 | /// given value. The value can set the container. |
---|
1477 | /// |
---|
1478 | /// The following code finds the connected components of a graph |
---|
1479 | /// and stores it in the \c comp map: |
---|
1480 | ///\code |
---|
1481 | /// typedef Graph::NodeMap<int> ComponentMap; |
---|
1482 | /// ComponentMap comp(graph); |
---|
1483 | /// typedef FillBoolMap<Graph::NodeMap<int> > ComponentFillerMap; |
---|
1484 | /// ComponentFillerMap filler(comp, 0); |
---|
1485 | /// |
---|
1486 | /// Dfs<Graph>::DefProcessedMap<ComponentFillerMap>::Create dfs(graph); |
---|
1487 | /// dfs.processedMap(filler); |
---|
1488 | /// dfs.init(); |
---|
1489 | /// for (NodeIt it(graph); it != INVALID; ++it) { |
---|
1490 | /// if (!dfs.reached(it)) { |
---|
1491 | /// dfs.addSource(it); |
---|
1492 | /// dfs.start(); |
---|
1493 | /// ++filler.fillValue(); |
---|
1494 | /// } |
---|
1495 | /// } |
---|
1496 | ///\endcode |
---|
1497 | template <typename Map> |
---|
1498 | class FillBoolMap { |
---|
1499 | public: |
---|
1500 | typedef typename Map::Key Key; |
---|
1501 | typedef bool Value; |
---|
1502 | |
---|
1503 | /// Constructor |
---|
1504 | FillBoolMap(Map& _map, const typename Map::Value& _fill) |
---|
1505 | : map(_map), fill(_fill) {} |
---|
1506 | |
---|
1507 | /// Constructor |
---|
1508 | FillBoolMap(Map& _map) |
---|
1509 | : map(_map), fill() {} |
---|
1510 | |
---|
1511 | /// Gives back the current fill value |
---|
1512 | const typename Map::Value& fillValue() const { |
---|
1513 | return fill; |
---|
1514 | } |
---|
1515 | |
---|
1516 | /// Gives back the current fill value |
---|
1517 | typename Map::Value& fillValue() { |
---|
1518 | return fill; |
---|
1519 | } |
---|
1520 | |
---|
1521 | /// Sets the current fill value |
---|
1522 | void fillValue(const typename Map::Value& _fill) { |
---|
1523 | fill = _fill; |
---|
1524 | } |
---|
1525 | |
---|
1526 | /// The \c set function of the map |
---|
1527 | void set(const Key& key, Value value) { |
---|
1528 | if (value) { |
---|
1529 | map.set(key, fill); |
---|
1530 | } |
---|
1531 | } |
---|
1532 | |
---|
1533 | private: |
---|
1534 | Map& map; |
---|
1535 | typename Map::Value fill; |
---|
1536 | }; |
---|
1537 | |
---|
1538 | |
---|
1539 | /// \brief Writable bool map for storing the sequence number of |
---|
1540 | /// \c true assignments. |
---|
1541 | /// |
---|
1542 | /// Writable bool map that stores for each \c true assigned elements |
---|
1543 | /// the sequence number of this setting. |
---|
1544 | /// It makes it easy to calculate the leaving |
---|
1545 | /// order of the nodes in the \c Dfs algorithm. |
---|
1546 | /// |
---|
1547 | ///\code |
---|
1548 | /// typedef Digraph::NodeMap<int> OrderMap; |
---|
1549 | /// OrderMap order(digraph); |
---|
1550 | /// typedef SettingOrderBoolMap<OrderMap> OrderSetterMap; |
---|
1551 | /// OrderSetterMap setter(order); |
---|
1552 | /// Dfs<Digraph>::DefProcessedMap<OrderSetterMap>::Create dfs(digraph); |
---|
1553 | /// dfs.processedMap(setter); |
---|
1554 | /// dfs.init(); |
---|
1555 | /// for (NodeIt it(digraph); it != INVALID; ++it) { |
---|
1556 | /// if (!dfs.reached(it)) { |
---|
1557 | /// dfs.addSource(it); |
---|
1558 | /// dfs.start(); |
---|
1559 | /// } |
---|
1560 | /// } |
---|
1561 | ///\endcode |
---|
1562 | /// |
---|
1563 | /// The storing of the discovering order is more difficult because the |
---|
1564 | /// ReachedMap should be readable in the dfs algorithm but the setting |
---|
1565 | /// order map is not readable. Thus we must use the fork map: |
---|
1566 | /// |
---|
1567 | ///\code |
---|
1568 | /// typedef Digraph::NodeMap<int> OrderMap; |
---|
1569 | /// OrderMap order(digraph); |
---|
1570 | /// typedef SettingOrderBoolMap<OrderMap> OrderSetterMap; |
---|
1571 | /// OrderSetterMap setter(order); |
---|
1572 | /// typedef Digraph::NodeMap<bool> StoreMap; |
---|
1573 | /// StoreMap store(digraph); |
---|
1574 | /// |
---|
1575 | /// typedef ForkWriteMap<StoreMap, OrderSetterMap> ReachedMap; |
---|
1576 | /// ReachedMap reached(store, setter); |
---|
1577 | /// |
---|
1578 | /// Dfs<Digraph>::DefReachedMap<ReachedMap>::Create dfs(digraph); |
---|
1579 | /// dfs.reachedMap(reached); |
---|
1580 | /// dfs.init(); |
---|
1581 | /// for (NodeIt it(digraph); it != INVALID; ++it) { |
---|
1582 | /// if (!dfs.reached(it)) { |
---|
1583 | /// dfs.addSource(it); |
---|
1584 | /// dfs.start(); |
---|
1585 | /// } |
---|
1586 | /// } |
---|
1587 | ///\endcode |
---|
1588 | template <typename Map> |
---|
1589 | class SettingOrderBoolMap { |
---|
1590 | public: |
---|
1591 | typedef typename Map::Key Key; |
---|
1592 | typedef bool Value; |
---|
1593 | |
---|
1594 | /// Constructor |
---|
1595 | SettingOrderBoolMap(Map& _map) |
---|
1596 | : map(_map), counter(0) {} |
---|
1597 | |
---|
1598 | /// Number of set operations. |
---|
1599 | int num() const { |
---|
1600 | return counter; |
---|
1601 | } |
---|
1602 | |
---|
1603 | /// The \c set function of the map |
---|
1604 | void set(const Key& key, Value value) { |
---|
1605 | if (value) { |
---|
1606 | map.set(key, counter++); |
---|
1607 | } |
---|
1608 | } |
---|
1609 | |
---|
1610 | private: |
---|
1611 | Map& map; |
---|
1612 | int counter; |
---|
1613 | }; |
---|
1614 | |
---|
1615 | /// @} |
---|
1616 | } |
---|
1617 | |
---|
1618 | #endif // LEMON_MAPS_H |
---|