DGtal 1.3.0
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testIteratorFunctions.cpp
Go to the documentation of this file.
1
31#include <iostream>
32#include <list>
33#include <vector>
34#include "DGtal/base/Common.h"
35#include "DGtal/base/IteratorFunctions.h"
36#include "DGtal/base/Circulator.h"
37#include "DGtal/base/ReverseIterator.h"
39
40using namespace std;
41using namespace DGtal;
42
44// Functions for testing class IteratorFunctions.
46template<typename Container, typename T>
47struct Tool
48{
49 static void add(Container& c, const T& obj)
50 {
51 c.push_back(obj);
52 }
53};
54
55#include <forward_list>
56//specialization for forward lists
57template<typename T>
58struct Tool<std::forward_list<int>, T>
59{
60 static void add(std::forward_list<int>& c, const T& obj)
61 {
62 c.push_front(obj);
63 }
64};
65
71template<typename Container>
72bool testAdvance(Container c)
73{
74 unsigned int nbok = 0;
75 unsigned int nb = 0;
76
77 trace.beginBlock ( "Advance..." );
78
80 typedef typename Container::iterator I;
81 typedef typename IteratorCirculatorTraits<I>::Category Category;
82 trace.info() << typeid(Category()).name() << std::endl;
83
85 Tool<Container,int>::add(c,1);
86 Tool<Container,int>::add(c,2);
87 Tool<Container,int>::add(c,3);
88 Tool<Container,int>::add(c,4);
89 Tool<Container,int>::add(c,5);
90
91 //classical iterator
92 I res = c.begin();
93 while ((nb+1) < 5)
94 {
95 ++res;
96 I i = c.begin();
97 DGtal::advanceIterator(i, (nb+1));
98 if ( (i != c.begin()) && ( i == res ) )
99 nbok++;
100 nb++;
101 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
102 }
103
104 //circulator
105 Circulator<I> cres = Circulator<I>(c.begin(), c.begin(), c.end());
106 while ((nb+1) < 5)
107 {
108 ++cres;
109 Circulator<I> ci = Circulator<I>(c.begin(), c.begin(), c.end());
110 DGtal::advanceIterator(ci, (nb+1));
111 if ( (ci != Circulator<I>(c.begin(), c.begin(), c.end()))
112 && ( ci == cres ) )
113 nbok++;
114 nb++;
115 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
116 }
117
118 trace.endBlock();
119
120 return (nbok == nb);
121}
122
128template<typename Container>
129bool testSize(Container c)
130{
131 unsigned int nbok = 0;
132 unsigned int nb = 0;
133
134 trace.beginBlock ( "Size..." );
135
137 typedef typename Container::iterator I;
138 typedef typename IteratorCirculatorTraits<I>::Category Category;
139 trace.info() << typeid(Category()).name() << std::endl;
140
141 trace.info() << "empty underlying range" << std::endl;
142 if ( rangeSize(c.begin(), c.end()) == 0 )
143 nbok++;
144 nb++;
145 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
146 if ( rangeSize( Circulator<I>(c.begin(), c.begin(), c.end()),
147 Circulator<I>(c.end(), c.begin(), c.end()) ) == 0 )
148 nbok++;
149 nb++;
150 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
151 if ( subRangeSize(c.begin(), c.end()) == 0 )
152 nbok++;
153 nb++;
154 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
155 if ( subRangeSize( Circulator<I>(c.begin(), c.begin(), c.end()),
156 Circulator<I>(c.end(), c.begin(), c.end()) ) == 0 )
157 nbok++;
158 nb++;
159 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
160
162 Tool<Container,int>::add(c,5);
163
164 trace.info() << "underlying range of one element" << std::endl;
165 if ( rangeSize(c.begin(), c.end()) == 1 )
166 nbok++;
167 nb++;
168 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
169 if ( rangeSize( Circulator<I>(c.begin(), c.begin(), c.end()),
170 Circulator<I>(c.begin(), c.begin(), c.end()) ) == 1 )
171 nbok++;
172 nb++;
173
175 Tool<Container,int>::add(c,1);
176 Tool<Container,int>::add(c,2);
177 Tool<Container,int>::add(c,3);
178 Tool<Container,int>::add(c,4);
179 Tool<Container,int>::add(c,5);
180 Tool<Container,int>::add(c,6);
181
182 trace.info() << "two equal iterators" << std::endl;
183 if ( rangeSize(c.begin(), c.begin()) == 0 )
184 nbok++;
185 nb++;
186 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
187 if ( subRangeSize(c.begin(), c.begin()) == 0 )
188 nbok++;
189 nb++;
190 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
191 if ( subRangeSize( Circulator<I>(c.begin(), c.begin(), c.end()),
192 Circulator<I>(c.begin(), c.begin(), c.end()) ) == 0 )
193 nbok++;
194 nb++;
195 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
196
197
198 trace.info() << "whole range (of 7 elements)" << std::endl;
199 if ( rangeSize(c.begin(), c.end()) == 7 )
200 nbok++;
201 nb++;
202 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
203 if ( rangeSize( Circulator<I>(c.begin(), c.begin(), c.end()),
204 Circulator<I>(c.begin(), c.begin(), c.end()) ) == 7 )
205 nbok++;
206 nb++;
207 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
208
210 I itb = c.begin(); ++itb;
211 I ite = itb;
212 ite++; ite++; ite++; ite++;
213
214 trace.info() << "subrange (of 4 elements)" << std::endl;
215 if ( rangeSize(itb, ite) == 4 )
216 nbok++;
217 nb++;
218 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
219 if ( rangeSize( Circulator<I>(itb, c.begin(), c.end()),
220 Circulator<I>(ite, c.begin(), c.end()) ) == 4 )
221 nbok++;
222 nb++;
223 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
224 if ( subRangeSize(itb, ite) == 4 )
225 nbok++;
226 nb++;
227 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
228 if ( subRangeSize( Circulator<I>(itb, c.begin(), c.end()),
229 Circulator<I>(ite, c.begin(), c.end()) ) == 4 )
230 nbok++;
231 nb++;
232 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
233
234
235 trace.endBlock();
236
237 return (nbok == nb);
238}
239
240
246template<typename Container>
247bool testMiddle(Container c)
248{
249 unsigned int nbok = 0;
250 unsigned int nb = 0;
251
252 trace.beginBlock ( "Middle iterator..." );
253
255 typedef typename Container::iterator I;
256 typedef typename IteratorCirculatorTraits<I>::Category Category;
257 trace.info() << typeid(Category()).name() << std::endl;
258
259 trace.info() << "empty underlying range" << std::endl;
260 if ( rangeMiddle(c.begin(), c.end()) == c.begin() )
261 nbok++;
262 nb++;
263 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
264 if ( rangeMiddle( Circulator<I>(c.begin(), c.begin(), c.end()),
265 Circulator<I>(c.begin(), c.begin(), c.end()) )
266 == Circulator<I>(c.begin(), c.begin(), c.end()) )
267 nbok++;
268 nb++;
269 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
270 if ( subRangeMiddle(c.begin(), c.end()) == c.begin() )
271 nbok++;
272 nb++;
273 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
274 if ( subRangeMiddle( Circulator<I>(c.begin(), c.begin(), c.end()),
275 Circulator<I>(c.end(), c.begin(), c.end()) )
276 == Circulator<I>(c.begin(), c.begin(), c.end()) )
277 nbok++;
278 nb++;
279 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
280
282 Tool<Container,int>::add(c,5);
283
284 trace.info() << "underlying range of one element" << std::endl;
285 if ( rangeMiddle(c.begin(), c.end()) == c.begin() )
286 nbok++;
287 nb++;
288 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
289 if ( rangeMiddle( Circulator<I>(c.begin(), c.begin(), c.end()),
290 Circulator<I>(c.begin(), c.begin(), c.end()) )
291 == Circulator<I>(c.begin(), c.begin(), c.end()) )
292 nbok++;
293 nb++;
294 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
295
297 Tool<Container,int>::add(c,1);
298 Tool<Container,int>::add(c,2);
299 Tool<Container,int>::add(c,3);
300 Tool<Container,int>::add(c,4);
301 Tool<Container,int>::add(c,5);
302 Tool<Container,int>::add(c,6);
303 Tool<Container,int>::add(c,5);
304
305 trace.info() << "two equal iterators" << std::endl;
306 if ( rangeMiddle(c.begin(), c.begin()) == c.begin() )
307 nbok++;
308 nb++;
309 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
310 if ( subRangeMiddle(c.begin(), c.begin()) == c.begin() )
311 nbok++;
312 nb++;
313 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
314 if ( subRangeMiddle( Circulator<I>(c.begin(), c.begin(), c.end()),
315 Circulator<I>(c.begin(), c.begin(), c.end()) )
316 == Circulator<I>(c.begin(), c.begin(), c.end()) )
317 nbok++;
318 nb++;
319 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
320
322 I itb = c.begin();
323 I ite = itb;
324 ite++; ite++; ite++;
325 ite++; ite++; ite++; ite++;
326 I res1 = itb;
327 res1++; res1++; res1++;
328 I res2 = res1;
329 res1++;
330
331 trace.info() << "whole range with odd number of elements" << std::endl;
332 if ( rangeMiddle(c.begin(), ite) == res2 )
333 nbok++;
334 nb++;
335 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
336 if ( rangeMiddle( Circulator<I>(c.begin(), c.begin(), ite),
337 Circulator<I>(c.begin(), c.begin(), ite) )
338 == Circulator<I>(res2, c.begin(), ite) )
339 nbok++;
340 nb++;
341 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
342
343 trace.info() << "whole range with even number of elements" << std::endl;
344 if ( rangeMiddle(c.begin(), c.end()) == res1 )
345 nbok++;
346 nb++;
347 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
348 if ( rangeMiddle( Circulator<I>(c.begin(), c.begin(), c.end()),
349 Circulator<I>(c.begin(), c.begin(), c.end()) )
350 == Circulator<I>(res1, c.begin(), c.end()) )
351 nbok++;
352 nb++;
353 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
354
356 ite = itb;
357 itb++;
358 ite++; ite++; ite++;
359 ite++; ite++; ite++;
360
361 trace.info() << "subrange with odd number of elements" << std::endl;
362 if ( rangeMiddle(itb, ite) == res2 )
363 nbok++;
364 nb++;
365 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
366 if ( rangeMiddle( Circulator<I>(itb, c.begin(), c.end()),
367 Circulator<I>(ite, c.begin(), c.end()) )
368 == Circulator<I>(res2, c.begin(), c.end()) )
369 nbok++;
370 nb++;
371 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
372 if ( subRangeMiddle(itb, ite) == res2 )
373 nbok++;
374 nb++;
375 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
376 if ( subRangeMiddle( Circulator<I>(itb, c.begin(), c.end()),
377 Circulator<I>(ite, c.begin(), c.end()) )
378 == Circulator<I>(res2, c.begin(), c.end()) )
379 nbok++;
380 nb++;
381 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
382
384 ite++;
385
386 trace.info() << "subrange with even number of elements" << std::endl;
387 if ( rangeMiddle(itb, ite) == res1 )
388 nbok++;
389 nb++;
390 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
391 if ( rangeMiddle( Circulator<I>(itb, c.begin(), c.end()),
392 Circulator<I>(ite, c.begin(), c.end()) )
393 == Circulator<I>(res1, c.begin(), c.end()) )
394 nbok++;
395 nb++;
396 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
397 if ( subRangeMiddle(itb, ite) == res1 )
398 nbok++;
399 nb++;
400 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
401 if ( subRangeMiddle( Circulator<I>(itb, c.begin(), c.end()),
402 Circulator<I>(ite, c.begin(), c.end()) )
403 == Circulator<I>(res1, c.begin(), c.end()) )
404 nbok++;
405 nb++;
406 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
407
408 trace.endBlock();
409
410 return (nbok == nb);
411}
412
416template<typename IC>
417bool testIsNotEmpty(const IC& itb, const IC& ite, const bool& aFlagIsNotEmpty)
418{
419 return (isNotEmpty(itb,ite) == aFlagIsNotEmpty );
420}
421
427template<typename Container>
428bool testRange(Container c)
429{
430 unsigned int nbok = 0;
431 unsigned int nb = 0;
432
433 trace.beginBlock ( "empty / not empty..." );
434
436 typedef typename Container::iterator I;
437 typedef typename IteratorCirculatorTraits<I>::Category Category;
438 trace.info() << typeid(Category()).name() << std::endl;
439
440 trace.info() << "empty underlying range" << std::endl;
441 if ( testIsNotEmpty(c.begin(), c.end(), false) )
442 nbok++;
443 nb++;
444 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
445 if ( testIsNotEmpty(Circulator<I>(c.begin(), c.begin(), c.end()),
446 Circulator<I>(c.begin(), c.begin(), c.end()), false) )
447 nbok++;
448 nb++;
449 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
450 if ( testIsNotEmpty(ReverseIterator<Circulator<I> >(Circulator<I>(c.begin(), c.begin(), c.end())),
451 ReverseIterator<Circulator<I> >(Circulator<I>(c.begin(), c.begin(), c.end())), false) )
452 nbok++;
453 nb++;
454 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
455
457 Tool<Container,int>::add(c,5);
458
459 trace.info() << "underlying range of one element" << std::endl;
460 if ( testIsNotEmpty(c.begin(), c.end(), true) )
461 nbok++;
462 nb++;
463 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
464 if ( testIsNotEmpty(Circulator<I>(c.begin(), c.begin(), c.end()),
465 Circulator<I>(c.begin(), c.begin(), c.end()), true) )
466 nbok++;
467 nb++;
468 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
469 if ( testIsNotEmpty(ReverseIterator<Circulator<I> >(Circulator<I>(c.begin(), c.begin(), c.end())),
470 ReverseIterator<Circulator<I> >(Circulator<I>(c.begin(), c.begin(), c.end())), true) )
471 nbok++;
472 nb++;
473 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
474
476 Tool<Container,int>::add(c,1);
477 Tool<Container,int>::add(c,2);
478 Tool<Container,int>::add(c,3);
479 Tool<Container,int>::add(c,4);
480 Tool<Container,int>::add(c,5);
481 Tool<Container,int>::add(c,6);
482 Tool<Container,int>::add(c,5);
483
484 trace.info() << "two equal iterators" << std::endl;
485 if ( testIsNotEmpty(c.begin(), c.begin(), false) )
486 nbok++;
487 nb++;
488 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
489 if ( testIsNotEmpty(Circulator<I>(c.begin(), c.begin(), c.end()),
490 Circulator<I>(c.begin(), c.begin(), c.end()), true) )
491 nbok++;
492 nb++;
493 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
494
496 I itb = c.begin(); itb++;
497 I ite = itb;
498 ite++; ite++;
499 ite++; ite++;
500
501 trace.info() << "whole range" << std::endl;
502 if ( testIsNotEmpty(c.begin(), c.end(), true) )
503 nbok++;
504 nb++;
505 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
506 if ( testIsNotEmpty(Circulator<I>(itb, c.begin(), c.end()),
507 Circulator<I>(itb, c.begin(), c.end()), true) )
508 nbok++;
509 nb++;
510 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
511 if ( testIsNotEmpty(ReverseIterator<Circulator<I> >(Circulator<I>(itb, c.begin(), c.end())),
512 ReverseIterator<Circulator<I> >(Circulator<I>(itb, c.begin(), c.end())), true) )
513 nbok++;
514 nb++;
515 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
516
517
518 trace.info() << "subrange" << std::endl;
519 if ( testIsNotEmpty(itb, ite, true) )
520 nbok++;
521 nb++;
522 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
523 if ( testIsNotEmpty(Circulator<I>(itb, c.begin(), c.end()),
524 Circulator<I>(ite, c.begin(), c.end()), true) )
525 nbok++;
526 nb++;
527 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
528 if ( testIsNotEmpty(ReverseIterator<Circulator<I> >(Circulator<I>(itb, c.begin(), c.end())),
529 ReverseIterator<Circulator<I> >(Circulator<I>(ite, c.begin(), c.end())), true) )
530 nbok++;
531 nb++;
532 trace.info() << "(" << nbok << "/" << nb << ") " << std::endl;
533
534
535 trace.endBlock();
536
537 return (nbok == nb);
538}
539
541// Standard services - public :
542
543int main( int argc, char** argv )
544{
545 trace.beginBlock ( "Testing class IteratorFunctions" );
546 trace.info() << "Args:";
547 for ( int i = 0; i < argc; ++i )
548 trace.info() << " " << argv[ i ];
549 trace.info() << endl;
550
551 std::forward_list<int> fl;
552 std::list<int> bl;
553 std::vector<int> v;
554
555 bool res =
556 testAdvance(fl) &&
557 testAdvance(bl) &&
558 testAdvance(v) &&
559 testMiddle(fl) &&
560 testMiddle(bl) &&
561 testMiddle(v) &&
562 testSize(fl) &&
563 testSize(bl) &&
564 testSize(v) &&
565 testRange(fl) &&
566 testRange(bl) &&
567 testRange(v);
568
569 trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
570 trace.endBlock();
571 return res ? 0 : 1;
572}
573// //
DGtal::Circulator
Aim: Provides an adapter for classical iterators that can iterate through the underlying data structu...
Definition: Circulator.h:86
DGtal::ReverseIterator
This class adapts any bidirectional iterator so that operator++ calls operator-- and vice versa.
Definition: ReverseIterator.h:70
DGtal::Trace::beginBlock
void beginBlock(const std::string &keyword="")
DGtal::Trace::emphase
std::ostream & emphase()
DGtal::Trace::info
std::ostream & info()
DGtal::Trace::endBlock
double endBlock()
DGtal
DGtal is the top-level namespace which contains all DGtal functions and types.
Definition: ClosedIntegerHalfPlane.h:49
DGtal::rangeSize
IteratorCirculatorTraits< IC >::Difference rangeSize(const IC &itb, const IC &ite)
DGtal::subRangeMiddle
IC subRangeMiddle(const IC &itb, const IC &ite)
DGtal::isNotEmpty
bool isNotEmpty(const IC &itb, const IC &ite)
DGtal::rangeMiddle
IC rangeMiddle(const IC &itb, const IC &ite)
DGtal::trace
Trace trace
Definition: Common.h:154
DGtal::advanceIterator
void advanceIterator(IC &ic, typename IteratorCirculatorTraits< IC >::Difference n)
DGtal::subRangeSize
IteratorCirculatorTraits< IC >::Difference subRangeSize(const IC &itb, const IC &ite)
std
STL namespace.
DGtal::IteratorCirculatorTraits::Category
ToDGtalCategory< typenameboost::iterator_category< IC >::type >::Category Category
Definition: IteratorCirculatorTraits.h:301
main
int main()
Definition: testBits.cpp:56
testRange
bool testRange(Container c)
Definition: testIteratorFunctions.cpp:428
testAdvance
bool testAdvance(Container c)
Definition: testIteratorFunctions.cpp:72
testIsNotEmpty
bool testIsNotEmpty(const IC &itb, const IC &ite, const bool &aFlagIsNotEmpty)
Definition: testIteratorFunctions.cpp:417
testMiddle
bool testMiddle(Container c)
Definition: testIteratorFunctions.cpp:247
testSize
bool testSize(Container c)
Definition: testIteratorFunctions.cpp:129
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