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cecfc5e7
VZ		 1/////////////////////////////////////////////////////////////////////////////
2// Name: No names yet.
3// Purpose: Contrib. demo
4// Author: Aleksandras Gluchovas
5// Modified by:
6// Created: 27/09/98
7// RCS-ID: $Id$
8// Copyright: (c) Aleskandars Gluchovas
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef __WXSTLVEC_G__
13#define __WXSTLVEC_G__
14
3d05544e
JS		 15#ifdef new
16#undef new
17#endif
18
cecfc5e7
VZ		 19#include <memory.h>
20#include <string.h> // imports memmove()
21#include <stddef.h>
ad053960
GD		 22#if !defined(__WXMAC__) || defined(__DARWIN__)
23# include <sys/types.h>
24#endif
cecfc5e7
VZ		 25#include <limits.h>
26#include <new>
27
28// the below macro used internally (see actual interface after this macro)
29
30#define __DEFINE_STL_VECTOR_DEEP( vectorClass, Type ) class vectorClass {\
31\
32public:\
33 typedef Type value_type;\
34 typedef value_type* iterator;\
35 typedef const value_type* const_iterator;\
36 typedef iterator pointer;\
37 typedef const iterator const_pointer;\
38 typedef value_type& reference;\
39 typedef const value_type& const_reference;\
40 typedef size_t size_type;\
41 typedef ptrdiff_t difference_type;\
42\
43 typedef iterator OutputIterator;\
44 typedef const_iterator InputIterator;\
45\
46protected:\
47\
48 inline void PlacementCopy( const_iterator first, const_iterator last, iterator result )\
49 {\
50 while ( first != last ) \
51 new (result++) value_type(*first++);\
52 }\
53\
54 inline void ConstructObjects( iterator first, iterator last, const value_type& pattern )\
55 {\
56 while( first != last ) \
57 new (first++) value_type(pattern);\
58 }\
59\
60 inline void CopyObjects( iterator first, iterator last, iterator result )\
61 {\
62 while( first != last ) \
63 *result++ = *first++;\
64 }\
65\
66 inline void CopyObjectsBack( iterator first, iterator last, iterator result )\
67 {\
68 result += difference_type(last,first);\
69\
70 while( first != last ) \
71 *(--result) = *(--last);\
72 }\
73\
74public:\
75\
76 class reverse_iterator \
77 {\
78 friend class vectorClass;\
79 friend class const_reverse_iterator;\
80\
81 public:\
82 iterator mpPos;\
83\
84 public:\
85\
86 reverse_iterator() {}\
87\
88 reverse_iterator ( iterator pPos )\
89 {\
90 mpPos = pPos;\
91 }\
92 \
93 int operator==( const reverse_iterator& rhs ) const { return (mpPos == rhs.mpPos); }\
94 int operator!=( const reverse_iterator& rhs ) const { return (mpPos != rhs.mpPos); }\
95\
96 inline reverse_iterator( const reverse_iterator& other )\
97 {\
98 mpPos = other.mpPos;\
99 }\
100\
101 inline const reverse_iterator& operator--() \
102 {\
103 --mpPos;\
104 return *this;\
105 }\
106\
107 inline reverse_iterator operator--(int)\
108 {\
109 reverse_iterator tmp = *this;\
110 --mpPos;\
111 return tmp;\
112 }\
113\
114 inline const reverse_iterator & operator++() \
115 {\
116 ++mpPos;\
117 return *this;\
118 }\
119\
120 inline reverse_iterator operator++(int)\
121 {\
122 reverse_iterator tmp = *this;\
123 ++mpPos;\
124 return tmp;\
125 }\
126\
127 inline const_reference operator*() const { return *mpPos; }\
128 };\
129\
130\
131 class const_reverse_iterator \
132 {\
133 protected:\
134 iterator mpPos;\
135 public:\
136\
137 const_reverse_iterator() {}\
138\
139 const_reverse_iterator( const iterator pPos )\
140 {\
141 mpPos = pPos;\
142 }\
143 \
144 int operator==( const const_reverse_iterator& rhs ) const { return (mpPos == rhs.mpPos); }\
145 int operator!=( const const_reverse_iterator& rhs ) const { return (mpPos != rhs.mpPos); }\
146\
147 inline const_reverse_iterator( const reverse_iterator& other )\
148 {\
149 mpPos = other.mpPos;\
150 }\
151\
152 inline const const_reverse_iterator& operator--() \
153 {\
154 --mpPos;\
155 return *this;\
156 }\
157\
158 inline const_reverse_iterator operator--(int)\
159 {\
160 const_reverse_iterator tmp = *this;\
161 --mpPos;\
162 return tmp;\
163 }\
164\
165 inline const const_reverse_iterator & operator++() \
166 {\
167 ++mpPos;\
168 return *this;\
169 }\
170\
171 inline const_reverse_iterator operator++(int)\
172 {\
173 const_reverse_iterator tmp = *this;\
174 ++mpPos;\
175 return tmp;\
176 }\
177\
178 inline const_reference operator*() const { return *mpPos; }\
179 };\
180\
181protected:\
182 \
183 pointer mpStart;\
184 pointer mpEnd;\
185 pointer mpEndOfBuf;\
186\
187protected:\
188\
9d6eda5f 189 inline void quick_sort(int WXUNUSED(low), int WXUNUSED(hi)) \
cecfc5e7
VZ		 190 {\
191 }\
192\
193 inline void DestructRange( iterator first, iterator last )\
194 {\
195 typedef value_type value_type_local;\
196\
197 while ( first != last ) \
198 {\
199 first->value_type_local::~value_type_local();\
200 ++first;\
201 }\
202 }\
203\
204 inline iterator DoInsert(iterator position, const value_type& x)\
205 {\
206 if ( mpEnd < mpEndOfBuf )\
207 {\
208 new (mpEnd) value_type(*(mpEnd-1) );\
209 \
210 CopyObjectsBack( position, mpEnd, position + 1 );\
211 \
212 *position = x;\
213 \
214 ++mpEnd;\
215 \
216 return position;\
217 }\
218 \
219 size_type minBufLen = WXSTL_VECTOR_MIN_BUF_SIZE/sizeof(value_type);\
220 \
221 size_type doubledSize = size()*2;\
222 \
223 size_type newLen = ( doubledSize < minBufLen ) ? minBufLen : doubledSize;\
224 \
225 iterator pNewStart = (iterator)( new char[newLen*sizeof(value_type)] );\
226 \
227 PlacementCopy( mpStart, position, pNewStart );\
228 \
229 iterator atPosition = pNewStart + difference_type( position - mpStart );\
230 \
231 new (atPosition) value_type(x);\
232 \
233 iterator newPos = atPosition;\
234 \
235 ++atPosition;\
236 \
237 if ( mpStart ) \
238 {\
239 PlacementCopy( position, mpEnd, atPosition );\
240 DestructRange( mpStart, mpEnd );\
241 delete [](char*)mpStart;\
242 }\
243 \
244 mpEnd = atPosition + difference_type( mpEnd - position );\
245 \
246 mpStart = pNewStart;\
247 mpEndOfBuf = pNewStart + newLen;\
248 \
249 return newPos;\
250 }\
251\
252public:\
253\
254 inline vectorClass() : mpStart(0), \
255 mpEnd(0),\
256 mpEndOfBuf(0)\
257 {}\
258\
259 inline vectorClass( const_iterator first, const_iterator last )\
260 : mpStart(0),\
261 mpEnd(0),\
262 mpEndOfBuf(0)\
263 \
264 { while( first != last ) push_back( *first++ ); }\
265\
266 inline vectorClass( size_type n, const value_type& value = value_type() )\
267 : mpStart(0),\
268 mpEnd(0),\
269 mpEndOfBuf(0)\
270 \
271 { for( size_type i = 0; i != n; ++i ) push_back( value ); }\
272\
273 inline const vectorClass& operator=( const vectorClass& other )\
274 {\
275 if (mpStart) \
276 {\
277 DestructRange( begin(), end() );\
278 delete [](char*)mpStart; \
279 }\
280\
281 size_t newLen = difference_type( other.mpEndOfBuf - other.mpStart );\
282\
283 mpStart = (iterator)( new char[newLen*sizeof(value_type)] );\
284\
285 PlacementCopy( other.begin(), other.end(), mpStart );\
286\
287 mpEnd = mpStart + other.size();\
288\
289 mpEndOfBuf = mpStart + newLen;\
290\
291 return *this;\
292 }\
293\
294 inline vectorClass( const vectorClass& other )\
295 : mpStart(0),\
296 mpEnd(0),\
297 mpEndOfBuf(0)\
298 {\
299 this->operator=( other );\
300 }\
301\
302 inline ~vectorClass() \
303 { \
304 if (mpStart) \
305 {\
306 DestructRange( begin(), end() );\
307 delete [](char*)mpStart; \
308 }\
309 }\
310\
311 inline iterator begin() { return mpStart; }\
312\
313 inline const_iterator begin() const { return mpStart; }\
314\
315 inline iterator end() { return mpEnd; }\
316\
317 inline const_iterator end() const { return mpEnd; }\
318\
319 inline size_type size() const { return (size_type)difference_type(mpEnd-mpStart); }\
320\
321 inline size_type max_size() const { return UINT_MAX/sizeof(value_type); }\
322\
323 inline size_type capacity() const \
324 { return difference_type(mpEndOfBuf-mpStart)/sizeof(value_type); }\
325\
326 inline int empty() const { return mpStart == mpEnd; }\
327\
328 inline reference operator[](size_type n) { return *(mpStart+n); }\
329\
330 inline const_reference operator[](size_type n) const { return *(mpStart+n); }\
331\
332 inline reference front() { return (*mpStart); }\
333 \
334 inline const_reference front() const { return (*mpStart); }\
335\
336 inline reference back() { return (*(mpEnd-1)); }\
337\
338 inline const_reference back() const { return (*(mpEnd-1)); }\
339\
9d6eda5f 340 inline void reserve(size_type WXUNUSED(n)) {}\
cecfc5e7
VZ		 341\
342 inline void push_back(const value_type& x)\
343 {\
344 if ( mpEnd != mpEndOfBuf ) \
345 {\
346 new (mpEnd) value_type(x);\
347 ++mpEnd;\
348 }\
349 else\
350 DoInsert( mpEnd, x );\
351 }\
352\
353 inline iterator insert(iterator position, const value_type& x = value_type())\
354 {\
355 if ( position == mpEnd && mpEnd != mpEndOfBuf )\
356 {\
357 new (mpEnd) value_type(x);\
358 ++mpEnd;\
359 return (mpEnd-1);\
360 }\
361 else return DoInsert( position, x );\
362 }\
363\
364 inline void pop_back()\
365 {\
366 DestructRange( mpEnd-1, mpEnd );\
367\
368 --mpEnd;\
369 }\
370\
371 inline void erase(iterator first, iterator last)\
372 {\
373 if ( last == mpEnd )\
374 {\
375 DestructRange( first, last );\
376 mpEnd = first;\
377 return;\
378 }\
379 \
380 CopyObjects( last, last + difference_type( mpEnd - last ), first );\
381 \
382 iterator newEnd = mpEnd - difference_type( last - first );\
383 DestructRange( newEnd, mpEnd );\
384 \
385 mpEnd = newEnd;\
386 }\
387\
388 inline void erase( iterator position )\
389 {\
390 erase( position, position + 1 );\
391 }\
392\
393 inline void sort()\
394 {\
395 if ( size() < 2 ) return;\
396 quick_sort( 0, size()-1 );\
397 }\
398}
399
400/////////////////////////////// shallow-copy container ///////////////////////
401
402#define __DEFINE_STL_VECTOR_SHALLOW( vectorClass, Type ) class vectorClass {\
403\
404public:\
405 typedef Type value_type;\
406 typedef value_type* iterator;\
407 typedef const value_type* const_iterator;\
408 typedef iterator pointer;\
409 typedef const iterator const_pointer;\
410 typedef value_type& reference;\
411 typedef const value_type& const_reference;\
412 typedef size_t size_type;\
413 typedef ptrdiff_t difference_type;\
414\
415 typedef iterator OutputIterator;\
416 typedef const_iterator InputIterator;\
417\
418protected:\
419\
420 inline void PlacementCopy( const_iterator first, const_iterator last, iterator result )\
421 {\
422 memcpy(result, first, int(difference_type(last-first)*sizeof(value_type)) );\
423 }\
424\
425 inline void ConstructObjects( iterator first, iterator last, const value_type& pattern )\
426 {\
427 if ( sizeof(pattern) == 1 )\
428 \
429 memset( first, int(difference_type(last-first)/sizeof(value_type)), \
430 int(*((char*)&pattern)) );\
431 else\
432 while( first != last ) \
433 *first++ = pattern;\
434 }\
435\
436 inline void CopyObjects( iterator first, iterator last, iterator result )\
437 {\
438 memcpy(result, first, int(difference_type(last-first)*sizeof(value_type)) );\
439 }\
440\
441 inline void CopyObjectsBack( iterator first, iterator last, iterator result )\
442 {\
443 memmove(result, first, int(difference_type(last-first)*sizeof(value_type)) );\
444 }\
445\
446public:\
447\
448 class reverse_iterator \
449 {\
450 friend class vectorClass;\
451 friend class const_reverse_iterator;\
452\
453 public:\
454 iterator mpPos;\
455\
456 public:\
457\
458 reverse_iterator() {}\
459\
460 reverse_iterator ( iterator pPos )\
461 {\
462 mpPos = pPos;\
463 }\
464 \
465 int operator==( const reverse_iterator& rhs ) const { return (mpPos == rhs.mpPos); }\
466 int operator!=( const reverse_iterator& rhs ) const { return (mpPos != rhs.mpPos); }\
467\
468 inline reverse_iterator( const reverse_iterator& other )\
469 {\
470 mpPos = other.mpPos;\
471 }\
472\
473 inline const reverse_iterator& operator--() \
474 {\
475 --mpPos;\
476 return *this;\
477 }\
478\
479 inline reverse_iterator operator--(int)\
480 {\
481 reverse_iterator tmp = *this;\
482 --mpPos;\
483 return tmp;\
484 }\
485\
486 inline const reverse_iterator & operator++() \
487 {\
488 ++mpPos;\
489 return *this;\
490 }\
491\
492 inline reverse_iterator operator++(int)\
493 {\
494 reverse_iterator tmp = *this;\
495 ++mpPos;\
496 return tmp;\
497 }\
498\
499 inline const_reference operator*() const { return *mpPos; }\
500 };\
501\
502\
503 class const_reverse_iterator \
504 {\
505 protected:\
506 iterator mpPos;\
507 public:\
508\
509 const_reverse_iterator() {}\
510\
511 const_reverse_iterator( const iterator pPos )\
512 {\
513 mpPos = pPos;\
514 }\
515 \
516 int operator==( const const_reverse_iterator& rhs ) const { return (mpPos == rhs.mpPos); }\
517 int operator!=( const const_reverse_iterator& rhs ) const { return (mpPos != rhs.mpPos); }\
518\
519 inline const_reverse_iterator( const reverse_iterator& other )\
520 {\
521 mpPos = other.mpPos;\
522 }\
523\
524 inline const const_reverse_iterator& operator--() \
525 {\
526 --mpPos;\
527 return *this;\
528 }\
529\
530 inline const_reverse_iterator operator--(int)\
531 {\
532 const_reverse_iterator tmp = *this;\
533 --mpPos;\
534 return tmp;\
535 }\
536\
537 inline const const_reverse_iterator & operator++() \
538 {\
539 ++mpPos;\
540 return *this;\
541 }\
542\
543 inline const_reverse_iterator operator++(int)\
544 {\
545 const_reverse_iterator tmp = *this;\
546 ++mpPos;\
547 return tmp;\
548 }\
549\
550 inline const_reference operator*() const { return *mpPos; }\
551 };\
552\
553protected:\
554 \
555 pointer mpStart;\
556 pointer mpEnd;\
557 pointer mpEndOfBuf;\
558\
559protected:\
560\
9d6eda5f 561 inline void quick_sort(int WXUNUSED(low), int WXUNUSED(hi)) \
cecfc5e7
VZ		 562 {\
563 }\
564\
9d6eda5f 565 inline void DestructRange( iterator WXUNUSED(first), iterator WXUNUSED(last))\
cecfc5e7
VZ		 566 {\
567 }\
568\
569 inline iterator DoInsert(iterator position, const value_type& x)\
570 {\
571 if ( mpEnd < mpEndOfBuf )\
572 {\
573 new (mpEnd) value_type(*(mpEnd-1) );\
574 \
575 CopyObjectsBack( position, mpEnd, position + 1 );\
576 \
577 *position = x;\
578 \
579 ++mpEnd;\
580 \
581 return position;\
582 }\
583 \
584 size_type minBufLen = WXSTL_VECTOR_MIN_BUF_SIZE/sizeof(value_type);\
585 \
586 size_type doubledSize = size()*2;\
587 \
588 size_type newLen = ( doubledSize < minBufLen ) ? minBufLen : doubledSize;\
589 \
590 iterator pNewStart = (iterator)( new char[newLen*sizeof(value_type)] );\
591 \
592 PlacementCopy( mpStart, position, pNewStart );\
593 \
594 iterator atPosition = pNewStart + difference_type( position - mpStart );\
595 \
596 new (atPosition) value_type(x);\
597 \
598 iterator newPos = atPosition;\
599 \
600 ++atPosition;\
601 \
602 if ( mpStart ) \
603 {\
604 PlacementCopy( position, mpEnd, atPosition );\
605 DestructRange( mpStart, mpEnd );\
606 delete [](char*)mpStart;\
607 }\
608 \
609 mpEnd = atPosition + difference_type( mpEnd - position );\
610 \
611 mpStart = pNewStart;\
612 mpEndOfBuf = pNewStart + newLen;\
613 \
614 return newPos;\
615 }\
616\
617public:\
618\
619 inline vectorClass() : mpStart(0), \
620 mpEnd(0),\
621 mpEndOfBuf(0)\
622 {}\
623\
624 inline vectorClass( const_iterator first, const_iterator last )\
625 : mpStart(0),\
626 mpEnd(0),\
627 mpEndOfBuf(0)\
628 \
629 { while( first != last ) push_back( *first++ ); }\
630\
631 inline vectorClass( size_type n, const value_type& value = value_type() )\
632 : mpStart(0),\
633 mpEnd(0),\
634 mpEndOfBuf(0)\
635 \
636 { for( size_type i = 0; i != n; ++i ) push_back( value ); }\
637\
638 inline const vectorClass& operator=( const vectorClass& other )\
639 {\
640 if (mpStart) \
641 {\
642 DestructRange( begin(), end() );\
643 delete [](char*)mpStart; \
644 }\
645\
646 size_t newLen = difference_type( other.mpEndOfBuf - other.mpStart );\
647\
648 mpStart = (iterator)( new char[newLen*sizeof(value_type)] );\
649\
650 PlacementCopy( other.begin(), other.end(), mpStart );\
651\
652 mpEnd = mpStart + other.size();\
653\
654 mpEndOfBuf = mpStart + newLen;\
655\
656 return *this;\
657 }\
658\
659 inline vectorClass( const vectorClass& other )\
660 : mpStart(0),\
661 mpEnd(0),\
662 mpEndOfBuf(0)\
663 {\
664 this->operator=( other );\
665 }\
666\
667 inline ~vectorClass() \
668 { \
669 if (mpStart) \
670 {\
671 DestructRange( begin(), end() );\
672 delete [](char*)mpStart; \
673 }\
674 }\
675\
676 inline iterator begin() { return mpStart; }\
677\
678 inline const_iterator begin() const { return mpStart; }\
679\
680 inline iterator end() { return mpEnd; }\
681\
682 inline const_iterator end() const { return mpEnd; }\
683\
684 inline size_type size() const { return (size_type)difference_type(mpEnd-mpStart); }\
685\
686 inline size_type max_size() const { return UINT_MAX/sizeof(value_type); }\
687\
688 inline size_type capacity() const \
689 { return difference_type(mpEndOfBuf-mpStart)/sizeof(value_type); }\
690\
691 inline int empty() const { return mpStart == mpEnd; }\
692\
693 inline reference operator[](size_type n) { return *(mpStart+n); }\
694\
695 inline const_reference operator[](size_type n) const { return *(mpStart+n); }\
696\
697 inline reference front() { return (*mpStart); }\
698 \
699 inline const_reference front() const { return (*mpStart); }\
700\
701 inline reference back() { return (*(mpEnd-1)); }\
702\
703 inline const_reference back() const { return (*(mpEnd-1)); }\
704\
9d6eda5f 705 inline void reserve(size_type WXUNUSED(n)) {}\
cecfc5e7
VZ		 706\
707 inline void push_back(const value_type& x)\
708 {\
709 if ( mpEnd != mpEndOfBuf ) \
710 {\
711 new (mpEnd) value_type(x);\
712 ++mpEnd;\
713 }\
714 else\
715 DoInsert( mpEnd, x );\
716 }\
717\
718 inline iterator insert(iterator position, const value_type& x = value_type())\
719 {\
720 if ( position == mpEnd && mpEnd != mpEndOfBuf )\
721 {\
722 new (mpEnd) value_type(x);\
723 ++mpEnd;\
724 return (mpEnd-1);\
725 }\
726 else return DoInsert( position, x );\
727 }\
728\
729 inline void pop_back()\
730 {\
731 DestructRange( mpEnd-1, mpEnd );\
732\
733 --mpEnd;\
734 }\
735\
736 inline void erase(iterator first, iterator last)\
737 {\
738 if ( last == mpEnd )\
739 {\
740 DestructRange( first, last );\
741 mpEnd = first;\
742 return;\
743 }\
744 \
745 CopyObjects( last, last + difference_type( mpEnd - last ), first );\
746 \
747 iterator newEnd = mpEnd - difference_type( last - first );\
748 DestructRange( newEnd, mpEnd );\
749 \
750 mpEnd = newEnd;\
751 }\
752\
753 inline void erase( iterator position )\
754 {\
755 erase( position, position + 1 );\
756 }\
757\
758 inline void sort()\
759 {\
760 if ( size() < 2 ) return;\
761 quick_sort( 0, size()-1 );\
762 }\
763}
764
765
766
767// redefine below symbol to change the default allocation unit of vector content buffer
768#define WXSTL_VECTOR_MIN_BUF_SIZE 64
769
770// defines vector class, where objects are copied
771// using "deep-copy" sematics (i.e. by calling their copy constructors)
772
773#define WXSTL_VECTOR(ELEMENT_CLASS) \
774__DEFINE_STL_VECTOR_DEEP(_WXSTL_VECTOR_##ELEMENT_CLASS, ELEMENT_CLASS)
775
776// defines vector class, where objects are copied
777// using "shallow-copy" sematics (i.e. instead of calling
778// their constructors, memcpy() and memmove() are used to copy their raw data)
779
780
781#define WXSTL_VECTOR_SHALLOW_COPY(ELEMENT_CLASS) __DEFINE_STL_VECTOR_SHALLOW(_WXSTL_VECTORSC_##ELEMENT_CLASS, ELEMENT_CLASS)
782
783#endif
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