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1 // Common/MyVector.h
2 
3 #ifndef __COMMON_MY_VECTOR_H
4 #define __COMMON_MY_VECTOR_H
5 
6 template <class T>
7 class CRecordVector
8 {
9   T *_items;
10   unsigned _size;
11   unsigned _capacity;
12 
MoveItems(unsigned destIndex,unsigned srcIndex)13   void MoveItems(unsigned destIndex, unsigned srcIndex)
14   {
15     memmove(_items + destIndex, _items + srcIndex, (size_t)(_size - srcIndex) * (size_t)sizeof(T));
16   }
17 
ReserveOnePosition()18   void ReserveOnePosition()
19   {
20     if (_size == _capacity)
21     {
22       unsigned newCapacity = _capacity + (_capacity >> 2) + 1;
23       T *p = new T[newCapacity];
24       memcpy(p, _items, (size_t)_size * (size_t)sizeof(T));
25       delete []_items;
26       _items = p;
27       _capacity = newCapacity;
28     }
29   }
30 
31 public:
32 
CRecordVector()33   CRecordVector(): _items(0), _size(0), _capacity(0) {}
34 
CRecordVector(const CRecordVector & v)35   CRecordVector(const CRecordVector &v): _items(0), _size(0), _capacity(0)
36   {
37     unsigned size = v.Size();
38     if (size != 0)
39     {
40       _items = new T[size];
41       _size = size;
42       _capacity = size;
43       memcpy(_items, v._items, (size_t)size * (size_t)sizeof(T));
44     }
45   }
46 
Size()47   unsigned Size() const { return _size; }
IsEmpty()48   bool IsEmpty() const { return _size == 0; }
49 
ConstructReserve(unsigned size)50   void ConstructReserve(unsigned size)
51   {
52     if (size != 0)
53     {
54       _items = new T[size];
55       _capacity = size;
56     }
57   }
58 
Reserve(unsigned newCapacity)59   void Reserve(unsigned newCapacity)
60   {
61     if (newCapacity > _capacity)
62     {
63       T *p = new T[newCapacity];
64       memcpy(p, _items, (size_t)_size * (size_t)sizeof(T));
65       delete []_items;
66       _items = p;
67       _capacity = newCapacity;
68     }
69   }
70 
ClearAndReserve(unsigned newCapacity)71   void ClearAndReserve(unsigned newCapacity)
72   {
73     Clear();
74     if (newCapacity > _capacity)
75     {
76       delete []_items;
77       _items = NULL;
78       _capacity = 0;
79       _items = new T[newCapacity];
80       _capacity = newCapacity;
81     }
82   }
83 
ClearAndSetSize(unsigned newSize)84   void ClearAndSetSize(unsigned newSize)
85   {
86     ClearAndReserve(newSize);
87     _size = newSize;
88   }
89 
ChangeSize_KeepData(unsigned newSize)90   void ChangeSize_KeepData(unsigned newSize)
91   {
92     if (newSize > _capacity)
93     {
94       T *p = new T[newSize];
95       memcpy(p, _items, (size_t)_size * (size_t)sizeof(T));
96       delete []_items;
97       _items = p;
98       _capacity = newSize;
99     }
100     _size = newSize;
101   }
102 
ReserveDown()103   void ReserveDown()
104   {
105     if (_size == _capacity)
106       return;
107     T *p = NULL;
108     if (_size != 0)
109     {
110       p = new T[_size];
111       memcpy(p, _items, (size_t)_size * (size_t)sizeof(T));
112     }
113     delete []_items;
114     _items = p;
115     _capacity = _size;
116   }
117 
~CRecordVector()118   ~CRecordVector() { delete []_items; }
119 
ClearAndFree()120   void ClearAndFree()
121   {
122     delete []_items;
123     _items = NULL;
124     _size = 0;
125     _capacity = 0;
126   }
127 
Clear()128   void Clear() { _size = 0; }
129 
DeleteBack()130   void DeleteBack() { _size--; }
131 
DeleteFrom(unsigned index)132   void DeleteFrom(unsigned index)
133   {
134     // if (index <= _size)
135       _size = index;
136   }
137 
DeleteFrontal(unsigned num)138   void DeleteFrontal(unsigned num)
139   {
140     if (num != 0)
141     {
142       MoveItems(0, num);
143       _size -= num;
144     }
145   }
146 
Delete(unsigned index)147   void Delete(unsigned index)
148   {
149     MoveItems(index, index + 1);
150     _size -= 1;
151   }
152 
153   /*
154   void Delete(unsigned index, unsigned num)
155   {
156     if (num > 0)
157     {
158       MoveItems(index, index + num);
159       _size -= num;
160     }
161   }
162   */
163 
164   CRecordVector& operator=(const CRecordVector &v)
165   {
166     unsigned size = v.Size();
167     if (size > _capacity)
168     {
169       delete []_items;
170       _capacity = 0;
171       _size = 0;
172       _items = NULL;
173       _items = new T[size];
174       _capacity = size;
175     }
176     _size = size;
177     memcpy(_items, v._items, (size_t)size * (size_t)sizeof(T));
178     return *this;
179   }
180 
181   CRecordVector& operator+=(const CRecordVector &v)
182   {
183     unsigned size = v.Size();
184     Reserve(_size + size);
185     memcpy(_items + _size, v._items, (size_t)size * (size_t)sizeof(T));
186     _size += size;
187     return *this;
188   }
189 
Add(const T item)190   unsigned Add(const T item)
191   {
192     ReserveOnePosition();
193     _items[_size] = item;
194     return _size++;
195   }
196 
AddInReserved(const T item)197   void AddInReserved(const T item)
198   {
199     _items[_size++] = item;
200   }
201 
Insert(unsigned index,const T item)202   void Insert(unsigned index, const T item)
203   {
204     ReserveOnePosition();
205     MoveItems(index + 1, index);
206     _items[index] = item;
207     _size++;
208   }
209 
MoveToFront(unsigned index)210   void MoveToFront(unsigned index)
211   {
212     if (index != 0)
213     {
214       T temp = _items[index];
215       memmove(_items + 1, _items, (size_t)index * (size_t)sizeof(T));
216       _items[0] = temp;
217     }
218   }
219 
220   const T& operator[](unsigned index) const { return _items[index]; }
221         T& operator[](unsigned index)       { return _items[index]; }
Front()222   const T& Front() const { return _items[0]; }
Front()223         T& Front()       { return _items[0]; }
Back()224   const T& Back() const  { return _items[_size - 1]; }
Back()225         T& Back()        { return _items[_size - 1]; }
226 
227   /*
228   void Swap(unsigned i, unsigned j)
229   {
230     T temp = _items[i];
231     _items[i] = _items[j];
232     _items[j] = temp;
233   }
234   */
235 
FindInSorted(const T item,unsigned left,unsigned right)236   int FindInSorted(const T item, unsigned left, unsigned right) const
237   {
238     while (left != right)
239     {
240       unsigned mid = (left + right) / 2;
241       const T midVal = (*this)[mid];
242       if (item == midVal)
243         return mid;
244       if (item < midVal)
245         right = mid;
246       else
247         left = mid + 1;
248     }
249     return -1;
250   }
251 
FindInSorted2(const T & item,unsigned left,unsigned right)252   int FindInSorted2(const T &item, unsigned left, unsigned right) const
253   {
254     while (left != right)
255     {
256       unsigned mid = (left + right) / 2;
257       const T& midVal = (*this)[mid];
258       int comp = item.Compare(midVal);
259       if (comp == 0)
260         return mid;
261       if (comp < 0)
262         right = mid;
263       else
264         left = mid + 1;
265     }
266     return -1;
267   }
268 
FindInSorted(const T item)269   int FindInSorted(const T item) const
270   {
271     return FindInSorted(item, 0, _size);
272   }
273 
FindInSorted2(const T & item)274   int FindInSorted2(const T &item) const
275   {
276     return FindInSorted2(item, 0, _size);
277   }
278 
AddToUniqueSorted(const T item)279   unsigned AddToUniqueSorted(const T item)
280   {
281     unsigned left = 0, right = _size;
282     while (left != right)
283     {
284       unsigned mid = (left + right) / 2;
285       const T midVal = (*this)[mid];
286       if (item == midVal)
287         return mid;
288       if (item < midVal)
289         right = mid;
290       else
291         left = mid + 1;
292     }
293     Insert(right, item);
294     return right;
295   }
296 
AddToUniqueSorted2(const T & item)297   unsigned AddToUniqueSorted2(const T &item)
298   {
299     unsigned left = 0, right = _size;
300     while (left != right)
301     {
302       unsigned mid = (left + right) / 2;
303       const T& midVal = (*this)[mid];
304       int comp = item.Compare(midVal);
305       if (comp == 0)
306         return mid;
307       if (comp < 0)
308         right = mid;
309       else
310         left = mid + 1;
311     }
312     Insert(right, item);
313     return right;
314   }
315 
SortRefDown(T * p,unsigned k,unsigned size,int (* compare)(const T *,const T *,void *),void * param)316   static void SortRefDown(T* p, unsigned k, unsigned size, int (*compare)(const T*, const T*, void *), void *param)
317   {
318     T temp = p[k];
319     for (;;)
320     {
321       unsigned s = (k << 1);
322       if (s > size)
323         break;
324       if (s < size && compare(p + s + 1, p + s, param) > 0)
325         s++;
326       if (compare(&temp, p + s, param) >= 0)
327         break;
328       p[k] = p[s];
329       k = s;
330     }
331     p[k] = temp;
332   }
333 
Sort(int (* compare)(const T *,const T *,void *),void * param)334   void Sort(int (*compare)(const T*, const T*, void *), void *param)
335   {
336     unsigned size = _size;
337     if (size <= 1)
338       return;
339     T* p = (&Front()) - 1;
340     {
341       unsigned i = size >> 1;
342       do
343         SortRefDown(p, i, size, compare, param);
344       while (--i != 0);
345     }
346     do
347     {
348       T temp = p[size];
349       p[size--] = p[1];
350       p[1] = temp;
351       SortRefDown(p, 1, size, compare, param);
352     }
353     while (size > 1);
354   }
355 
SortRefDown2(T * p,unsigned k,unsigned size)356   static void SortRefDown2(T* p, unsigned k, unsigned size)
357   {
358     T temp = p[k];
359     for (;;)
360     {
361       unsigned s = (k << 1);
362       if (s > size)
363         break;
364       if (s < size && p[s + 1].Compare(p[s]) > 0)
365         s++;
366       if (temp.Compare(p[s]) >= 0)
367         break;
368       p[k] = p[s];
369       k = s;
370     }
371     p[k] = temp;
372   }
373 
Sort2()374   void Sort2()
375   {
376     unsigned size = _size;
377     if (size <= 1)
378       return;
379     T* p = (&Front()) - 1;
380     {
381       unsigned i = size >> 1;
382       do
383         SortRefDown2(p, i, size);
384       while (--i != 0);
385     }
386     do
387     {
388       T temp = p[size];
389       p[size--] = p[1];
390       p[1] = temp;
391       SortRefDown2(p, 1, size);
392     }
393     while (size > 1);
394   }
395 };
396 
397 typedef CRecordVector<int> CIntVector;
398 typedef CRecordVector<unsigned int> CUIntVector;
399 typedef CRecordVector<bool> CBoolVector;
400 typedef CRecordVector<unsigned char> CByteVector;
401 typedef CRecordVector<void *> CPointerVector;
402 
403 template <class T>
404 class CObjectVector
405 {
406   CPointerVector _v;
407 public:
Size()408   unsigned Size() const { return _v.Size(); }
IsEmpty()409   bool IsEmpty() const { return _v.IsEmpty(); }
ReserveDown()410   void ReserveDown() { _v.ReserveDown(); }
411   // void Reserve(unsigned newCapacity) { _v.Reserve(newCapacity); }
ClearAndReserve(unsigned newCapacity)412   void ClearAndReserve(unsigned newCapacity) { Clear(); _v.ClearAndReserve(newCapacity); }
413 
CObjectVector()414   CObjectVector() {};
CObjectVector(const CObjectVector & v)415   CObjectVector(const CObjectVector &v)
416   {
417     unsigned size = v.Size();
418     _v.ConstructReserve(size);
419     for (unsigned i = 0; i < size; i++)
420       _v.AddInReserved(new T(v[i]));
421   }
422   CObjectVector& operator=(const CObjectVector &v)
423   {
424     Clear();
425     unsigned size = v.Size();
426     _v.Reserve(size);
427     for (unsigned i = 0; i < size; i++)
428       _v.AddInReserved(new T(v[i]));
429     return *this;
430   }
431 
432   CObjectVector& operator+=(const CObjectVector &v)
433   {
434     unsigned size = v.Size();
435     _v.Reserve(Size() + size);
436     for (unsigned i = 0; i < size; i++)
437       _v.AddInReserved(new T(v[i]));
438     return *this;
439   }
440 
441   const T& operator[](unsigned index) const { return *((T *)_v[index]); }
442         T& operator[](unsigned index)       { return *((T *)_v[index]); }
Front()443   const T& Front() const { return operator[](0); }
Front()444         T& Front()       { return operator[](0); }
Back()445   const T& Back() const  { return operator[](_v.Size() - 1); }
Back()446         T& Back()        { return operator[](_v.Size() - 1); }
447 
MoveToFront(unsigned index)448   void MoveToFront(unsigned index) { _v.MoveToFront(index); }
449 
Add(const T & item)450   unsigned Add(const T& item) { return _v.Add(new T(item)); }
451 
AddInReserved(const T & item)452   void AddInReserved(const T& item) { _v.AddInReserved(new T(item)); }
453 
AddNew()454   T& AddNew()
455   {
456     T *p = new T;
457     _v.Add(p);
458     return *p;
459   }
460 
AddNewInReserved()461   T& AddNewInReserved()
462   {
463     T *p = new T;
464     _v.AddInReserved(p);
465     return *p;
466   }
467 
Insert(unsigned index,const T & item)468   void Insert(unsigned index, const T& item) { _v.Insert(index, new T(item)); }
469 
InsertNew(unsigned index)470   T& InsertNew(unsigned index)
471   {
472     T *p = new T;
473     _v.Insert(index, p);
474     return *p;
475   }
476 
~CObjectVector()477   ~CObjectVector()
478   {
479     for (unsigned i = _v.Size(); i != 0;)
480       delete (T *)_v[--i];
481   }
482 
ClearAndFree()483   void ClearAndFree()
484   {
485     Clear();
486     _v.ClearAndFree();
487   }
488 
Clear()489   void Clear()
490   {
491     for (unsigned i = _v.Size(); i != 0;)
492       delete (T *)_v[--i];
493     _v.Clear();
494   }
495 
DeleteFrom(unsigned index)496   void DeleteFrom(unsigned index)
497   {
498     unsigned size = _v.Size();
499     for (unsigned i = index; i < size; i++)
500       delete (T *)_v[i];
501     _v.DeleteFrom(index);
502   }
503 
DeleteFrontal(unsigned num)504   void DeleteFrontal(unsigned num)
505   {
506     for (unsigned i = 0; i < num; i++)
507       delete (T *)_v[i];
508     _v.DeleteFrontal(num);
509   }
510 
DeleteBack()511   void DeleteBack()
512   {
513     delete (T *)_v[_v.Size() - 1];
514     _v.DeleteBack();
515   }
516 
Delete(unsigned index)517   void Delete(unsigned index)
518   {
519     delete (T *)_v[index];
520     _v.Delete(index);
521   }
522 
523   /*
524   void Delete(unsigned index, unsigned num)
525   {
526     for (unsigned i = 0; i < num; i++)
527       delete (T *)_v[index + i];
528     _v.Delete(index, num);
529   }
530   */
531 
532   /*
533   int Find(const T& item) const
534   {
535     unsigned size = Size();
536     for (unsigned i = 0; i < size; i++)
537       if (item == (*this)[i])
538         return i;
539     return -1;
540   }
541   */
542 
FindInSorted(const T & item)543   int FindInSorted(const T& item) const
544   {
545     unsigned left = 0, right = Size();
546     while (left != right)
547     {
548       unsigned mid = (left + right) / 2;
549       const T& midVal = (*this)[mid];
550       int comp = item.Compare(midVal);
551       if (comp == 0)
552         return mid;
553       if (comp < 0)
554         right = mid;
555       else
556         left = mid + 1;
557     }
558     return -1;
559   }
560 
AddToUniqueSorted(const T & item)561   unsigned AddToUniqueSorted(const T& item)
562   {
563     unsigned left = 0, right = Size();
564     while (left != right)
565     {
566       unsigned mid = (left + right) / 2;
567       const T& midVal = (*this)[mid];
568       int comp = item.Compare(midVal);
569       if (comp == 0)
570         return mid;
571       if (comp < 0)
572         right = mid;
573       else
574         left = mid + 1;
575     }
576     Insert(right, item);
577     return right;
578   }
579 
580   /*
581   unsigned AddToSorted(const T& item)
582   {
583     unsigned left = 0, right = Size();
584     while (left != right)
585     {
586       unsigned mid = (left + right) / 2;
587       const T& midVal = (*this)[mid];
588       int comp = item.Compare(midVal);
589       if (comp == 0)
590       {
591         right = mid + 1;
592         break;
593       }
594       if (comp < 0)
595         right = mid;
596       else
597         left = mid + 1;
598     }
599     Insert(right, item);
600     return right;
601   }
602   */
603 
Sort(int (* compare)(void * const *,void * const *,void *),void * param)604   void Sort(int (*compare)(void *const *, void *const *, void *), void *param)
605     { _v.Sort(compare, param); }
606 
CompareObjectItems(void * const * a1,void * const * a2,void *)607   static int CompareObjectItems(void *const *a1, void *const *a2, void * /* param */)
608     { return (*(*((const T **)a1))).Compare(*(*((const T **)a2))); }
609 
Sort()610   void Sort() { _v.Sort(CompareObjectItems, 0); }
611 };
612 
613 #define FOR_VECTOR(_i_, _v_) for (unsigned _i_ = 0; _i_ < (_v_).Size(); _i_++)
614 
615 #endif
616