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4 | <title>Interval Construction</title> | |
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24 | </div> | |
25 | <div class="section boost_icl_function_reference_interval_construction" lang="en"> | |
26 | <div class="titlepage"><div><div><h3 class="title"> | |
27 | <a name="boost_icl.function_reference.interval_construction"></a><a class="link" href="interval_construction.html" title="Interval Construction">Interval | |
28 | Construction</a> | |
29 | </h3></div></div></div> | |
30 | <div class="informaltable"><table class="table"> | |
31 | <colgroup> | |
32 | <col> | |
33 | <col> | |
34 | <col> | |
35 | <col> | |
36 | <col> | |
37 | <col> | |
38 | <col> | |
39 | </colgroup> | |
40 | <thead><tr> | |
41 | <th> | |
42 | <p> | |
43 | T | |
44 | </p> | |
45 | </th> | |
46 | <th> | |
47 | <p> | |
48 | discrete<br> _interval | |
49 | </p> | |
50 | </th> | |
51 | <th> | |
52 | <p> | |
53 | continuous<br> _interval | |
54 | </p> | |
55 | </th> | |
56 | <th> | |
57 | <p> | |
58 | right_open<br> _interval | |
59 | </p> | |
60 | </th> | |
61 | <th> | |
62 | <p> | |
63 | left_open<br> _interval | |
64 | </p> | |
65 | </th> | |
66 | <th> | |
67 | <p> | |
68 | closed<br> _interval | |
69 | </p> | |
70 | </th> | |
71 | <th> | |
72 | <p> | |
73 | open<br> _interval | |
74 | </p> | |
75 | </th> | |
76 | </tr></thead> | |
77 | <tbody> | |
78 | <tr> | |
79 | <td> | |
80 | <p> | |
81 | Interval bounds | |
82 | </p> | |
83 | </td> | |
84 | <td> | |
85 | <p> | |
86 | dynamic | |
87 | </p> | |
88 | </td> | |
89 | <td> | |
90 | <p> | |
91 | dynamic | |
92 | </p> | |
93 | </td> | |
94 | <td> | |
95 | <p> | |
96 | static | |
97 | </p> | |
98 | </td> | |
99 | <td> | |
100 | <p> | |
101 | static | |
102 | </p> | |
103 | </td> | |
104 | <td> | |
105 | <p> | |
106 | static | |
107 | </p> | |
108 | </td> | |
109 | <td> | |
110 | <p> | |
111 | static | |
112 | </p> | |
113 | </td> | |
114 | </tr> | |
115 | <tr> | |
116 | <td> | |
117 | <p> | |
118 | Form | |
119 | </p> | |
120 | </td> | |
121 | <td> | |
122 | <p> | |
123 | </p> | |
124 | </td> | |
125 | <td> | |
126 | <p> | |
127 | </p> | |
128 | </td> | |
129 | <td> | |
130 | <p> | |
131 | asymmetric | |
132 | </p> | |
133 | </td> | |
134 | <td> | |
135 | <p> | |
136 | asymmetric | |
137 | </p> | |
138 | </td> | |
139 | <td> | |
140 | <p> | |
141 | symmetric | |
142 | </p> | |
143 | </td> | |
144 | <td> | |
145 | <p> | |
146 | symmetric | |
147 | </p> | |
148 | </td> | |
149 | </tr> | |
150 | <tr> | |
151 | <td> | |
152 | <p> | |
153 | <span class="emphasis"><em><span class="bold"><strong>Construct</strong></span></em></span> | |
154 | </p> | |
155 | </td> | |
156 | <td> | |
157 | <p> | |
158 | </p> | |
159 | </td> | |
160 | <td> | |
161 | <p> | |
162 | </p> | |
163 | </td> | |
164 | <td> | |
165 | <p> | |
166 | </p> | |
167 | </td> | |
168 | <td> | |
169 | <p> | |
170 | </p> | |
171 | </td> | |
172 | <td> | |
173 | <p> | |
174 | </p> | |
175 | </td> | |
176 | <td> | |
177 | <p> | |
178 | </p> | |
179 | </td> | |
180 | </tr> | |
181 | <tr> | |
182 | <td> | |
183 | <p> | |
184 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">singleton</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> | |
185 | </p> | |
186 | </td> | |
187 | <td> | |
188 | <p> | |
189 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
190 | </p> | |
191 | </td> | |
192 | <td> | |
193 | <p> | |
194 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
195 | </p> | |
196 | </td> | |
197 | <td> | |
198 | <p> | |
199 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
200 | </p> | |
201 | </td> | |
202 | <td> | |
203 | <p> | |
204 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
205 | </p> | |
206 | </td> | |
207 | <td> | |
208 | <p> | |
209 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
210 | </p> | |
211 | </td> | |
212 | <td> | |
213 | <p> | |
214 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
215 | </p> | |
216 | </td> | |
217 | </tr> | |
218 | <tr> | |
219 | <td> | |
220 | <p> | |
221 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> | |
222 | <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> | |
223 | </p> | |
224 | </td> | |
225 | <td> | |
226 | <p> | |
227 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
228 | </p> | |
229 | </td> | |
230 | <td> | |
231 | <p> | |
232 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
233 | </p> | |
234 | </td> | |
235 | <td> | |
236 | <p> | |
237 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
238 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
239 | </p> | |
240 | </td> | |
241 | <td> | |
242 | <p> | |
243 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
244 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
245 | </p> | |
246 | </td> | |
247 | <td> | |
248 | <p> | |
249 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
250 | </p> | |
251 | </td> | |
252 | <td> | |
253 | <p> | |
254 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
255 | </p> | |
256 | </td> | |
257 | </tr> | |
258 | <tr> | |
259 | <td> | |
260 | <p> | |
261 | ||
262 | </p> | |
263 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> | |
264 | <span class="identifier">interval_bounds</span> <span class="special">)</span> | |
265 | </pre> | |
266 | <p> | |
267 | </p> | |
268 | </td> | |
269 | <td> | |
270 | <p> | |
271 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
272 | </p> | |
273 | </td> | |
274 | <td> | |
275 | <p> | |
276 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
277 | </p> | |
278 | </td> | |
279 | <td> | |
280 | <p> | |
281 | </p> | |
282 | </td> | |
283 | <td> | |
284 | <p> | |
285 | </p> | |
286 | </td> | |
287 | <td> | |
288 | <p> | |
289 | </p> | |
290 | </td> | |
291 | <td> | |
292 | <p> | |
293 | </p> | |
294 | </td> | |
295 | </tr> | |
296 | <tr> | |
297 | <td> | |
298 | <p> | |
299 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">hull</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> | |
300 | <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> | |
301 | </p> | |
302 | </td> | |
303 | <td> | |
304 | <p> | |
305 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
306 | </p> | |
307 | </td> | |
308 | <td> | |
309 | <p> | |
310 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
311 | </p> | |
312 | </td> | |
313 | <td> | |
314 | <p> | |
315 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
316 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
317 | </p> | |
318 | </td> | |
319 | <td> | |
320 | <p> | |
321 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
322 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
323 | </p> | |
324 | </td> | |
325 | <td> | |
326 | <p> | |
327 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
328 | </p> | |
329 | </td> | |
330 | <td> | |
331 | <p> | |
332 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
333 | </p> | |
334 | </td> | |
335 | </tr> | |
336 | <tr> | |
337 | <td> | |
338 | <p> | |
339 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">span</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> | |
340 | <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span></code> | |
341 | </p> | |
342 | </td> | |
343 | <td> | |
344 | <p> | |
345 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
346 | </p> | |
347 | </td> | |
348 | <td> | |
349 | <p> | |
350 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
351 | </p> | |
352 | </td> | |
353 | <td> | |
354 | <p> | |
355 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
356 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
357 | </p> | |
358 | </td> | |
359 | <td> | |
360 | <p> | |
361 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
362 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
363 | </p> | |
364 | </td> | |
365 | <td> | |
366 | <p> | |
367 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
368 | </p> | |
369 | </td> | |
370 | <td> | |
371 | <p> | |
372 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
373 | </p> | |
374 | </td> | |
375 | </tr> | |
376 | <tr> | |
377 | <td> | |
378 | <p> | |
379 | <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> | |
380 | <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> | |
381 | <span class="identifier">P</span><span class="special">&)</span></code> | |
382 | </p> | |
383 | </td> | |
384 | <td> | |
385 | <p> | |
386 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
387 | </p> | |
388 | </td> | |
389 | <td> | |
390 | <p> | |
391 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
392 | </p> | |
393 | </td> | |
394 | <td> | |
395 | <p> | |
396 | </p> | |
397 | </td> | |
398 | <td> | |
399 | <p> | |
400 | </p> | |
401 | </td> | |
402 | <td> | |
403 | <p> | |
404 | </p> | |
405 | </td> | |
406 | <td> | |
407 | <p> | |
408 | </p> | |
409 | </td> | |
410 | </tr> | |
411 | <tr> | |
412 | <td> | |
413 | <p> | |
414 | <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> | |
415 | <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> | |
416 | <span class="identifier">P</span><span class="special">&)</span></code> | |
417 | </p> | |
418 | </td> | |
419 | <td> | |
420 | <p> | |
421 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
422 | </p> | |
423 | </td> | |
424 | <td> | |
425 | <p> | |
426 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
427 | </p> | |
428 | </td> | |
429 | <td> | |
430 | <p> | |
431 | </p> | |
432 | </td> | |
433 | <td> | |
434 | <p> | |
435 | </p> | |
436 | </td> | |
437 | <td> | |
438 | <p> | |
439 | </p> | |
440 | </td> | |
441 | <td> | |
442 | <p> | |
443 | </p> | |
444 | </td> | |
445 | </tr> | |
446 | <tr> | |
447 | <td> | |
448 | <p> | |
449 | <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> | |
450 | <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> | |
451 | <span class="identifier">P</span><span class="special">&)</span></code> | |
452 | </p> | |
453 | </td> | |
454 | <td> | |
455 | <p> | |
456 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
457 | </p> | |
458 | </td> | |
459 | <td> | |
460 | <p> | |
461 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
462 | </p> | |
463 | </td> | |
464 | <td> | |
465 | <p> | |
466 | </p> | |
467 | </td> | |
468 | <td> | |
469 | <p> | |
470 | </p> | |
471 | </td> | |
472 | <td> | |
473 | <p> | |
474 | </p> | |
475 | </td> | |
476 | <td> | |
477 | <p> | |
478 | </p> | |
479 | </td> | |
480 | </tr> | |
481 | <tr> | |
482 | <td> | |
483 | <p> | |
484 | <code class="computeroutput"><span class="keyword">static</span> <span class="identifier">T</span> | |
485 | <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> | |
486 | <span class="identifier">P</span><span class="special">&)</span></code> | |
487 | </p> | |
488 | </td> | |
489 | <td> | |
490 | <p> | |
491 | <a class="link" href="../interface/function_synopsis.html#discrete_types"><span class="bold"><strong>d</strong></span></a> | |
492 | </p> | |
493 | </td> | |
494 | <td> | |
495 | <p> | |
496 | <a class="link" href="../interface/function_synopsis.html#continuous_types"><span class="bold"><strong>c</strong></span></a> | |
497 | </p> | |
498 | </td> | |
499 | <td> | |
500 | <p> | |
501 | </p> | |
502 | </td> | |
503 | <td> | |
504 | <p> | |
505 | </p> | |
506 | </td> | |
507 | <td> | |
508 | <p> | |
509 | </p> | |
510 | </td> | |
511 | <td> | |
512 | <p> | |
513 | </p> | |
514 | </td> | |
515 | </tr> | |
516 | </tbody> | |
517 | </table></div> | |
518 | <p> | |
519 | The table above shows the availability of functions, that allow the construction | |
520 | of intervals. All interval constructin functins are of <span class="emphasis"><em><span class="bold"><strong>constant time and space complexity</strong></span></em></span>. | |
521 | </p> | |
522 | <div class="informaltable"><table class="table"> | |
523 | <colgroup> | |
524 | <col> | |
525 | <col> | |
526 | </colgroup> | |
527 | <thead><tr> | |
528 | <th> | |
529 | <p> | |
530 | <span class="emphasis"><em><span class="bold"><strong>Construct</strong></span></em></span> | |
531 | </p> | |
532 | </th> | |
533 | <th> | |
534 | <p> | |
535 | Description | |
536 | </p> | |
537 | </th> | |
538 | </tr></thead> | |
539 | <tbody> | |
540 | <tr> | |
541 | <td> | |
542 | <p> | |
543 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">singleton</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> | |
544 | <span class="identifier">value</span><span class="special">)</span></code> | |
545 | </p> | |
546 | </td> | |
547 | <td> | |
548 | <p> | |
549 | Constructs an interval that contains exactly one element <code class="computeroutput"><span class="identifier">value</span></code>. For all interval types of | |
550 | the icl sigletons can be constructed for <span class="emphasis"><em>discrete</em></span> | |
551 | domain types. For continuous domain types, only <code class="computeroutput"><a class="link" href="../../boost/icl/continuous_interval.html" title="Class template continuous_interval">continuous_interval</a></code> | |
552 | is capable to construct a singleton. | |
553 | </p> | |
554 | </td> | |
555 | </tr> | |
556 | <tr> | |
557 | <td> | |
558 | <p> | |
559 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> | |
560 | <span class="identifier">lower</span><span class="special">,</span> | |
561 | <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">upper</span><span class="special">)</span></code> | |
562 | </p> | |
563 | </td> | |
564 | <td> | |
565 | <p> | |
566 | Contructs an interval with lower bound <code class="computeroutput"><span class="identifier">lower</span></code> | |
567 | and upper bound <code class="computeroutput"><span class="identifier">upper</span></code> | |
568 | </p> | |
569 | </td> | |
570 | </tr> | |
571 | <tr> | |
572 | <td> | |
573 | <p> | |
574 | ||
575 | </p> | |
576 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">T</span> <span class="identifier">construct</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">lower</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">upper</span><span class="special">,</span> | |
577 | <span class="identifier">interval_bounds</span> <span class="identifier">bounds</span> | |
578 | <span class="special">=</span> <span class="identifier">interval_bounds</span><span class="special">::</span><span class="identifier">right_open</span><span class="special">())</span> | |
579 | </pre> | |
580 | <p> | |
581 | </p> | |
582 | </td> | |
583 | <td> | |
584 | <p> | |
585 | For dynamically bounded intervals this function constructs an interval | |
586 | with interval bounds specified by the third parameter. | |
587 | </p> | |
588 | </td> | |
589 | </tr> | |
590 | <tr> | |
591 | <td> | |
592 | <p> | |
593 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">hull</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> | |
594 | <span class="identifier">x1</span><span class="special">,</span> | |
595 | <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">x2</span><span class="special">)</span></code> | |
596 | </p> | |
597 | </td> | |
598 | <td> | |
599 | <p> | |
600 | <code class="computeroutput"><span class="identifier">hull</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">)</span></code> | |
601 | constructs the smallest interval that contains both <code class="computeroutput"><span class="identifier">x1</span></code> and <code class="computeroutput"><span class="identifier">x2</span></code>. | |
602 | <code class="computeroutput"><span class="identifier">x2</span></code> may be smaller | |
603 | than <code class="computeroutput"><span class="identifier">x1</span></code>. | |
604 | </p> | |
605 | </td> | |
606 | </tr> | |
607 | <tr> | |
608 | <td> | |
609 | <p> | |
610 | <code class="computeroutput"><span class="identifier">T</span> <span class="identifier">span</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> | |
611 | <span class="identifier">x1</span><span class="special">,</span> | |
612 | <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&</span> <span class="identifier">x2</span><span class="special">)</span></code> | |
613 | </p> | |
614 | </td> | |
615 | <td> | |
616 | <p> | |
617 | <code class="computeroutput"><span class="identifier">span</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">)</span></code> | |
618 | constructs the interval <code class="computeroutput"><span class="identifier">construct</span><span class="special">(</span><span class="identifier">min</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">),</span> <span class="identifier">max</span><span class="special">(</span><span class="identifier">x1</span><span class="special">,</span><span class="identifier">x2</span><span class="special">))</span></code>. Note the differences between | |
619 | <code class="computeroutput"><span class="identifier">span</span></code>, <code class="computeroutput"><span class="identifier">hull</span></code> and <code class="computeroutput"><span class="identifier">construct</span></code>: | |
620 | ||
621 | </p> | |
622 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">span</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[</span><span class="number">1</span><span class="special">,</span><span class="number">2</span><span class="special">)</span> <span class="comment">// does NOT contain 2 | |
623 | </span><span class="identifier">hull</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[</span><span class="number">1</span><span class="special">,</span><span class="number">3</span><span class="special">)</span> <span class="comment">// contains 2 | |
624 | </span><span class="identifier">construct</span><span class="special"><</span><span class="identifier">right_open_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="special">>(</span><span class="number">2</span><span class="special">,</span><span class="number">1</span><span class="special">)</span> <span class="special">==</span> <span class="special">[)</span> <span class="comment">// is empty | |
625 | </span></pre> | |
626 | <p> | |
627 | </p> | |
628 | </td> | |
629 | </tr> | |
630 | <tr> | |
631 | <td> | |
632 | <p> | |
633 | ||
634 | </p> | |
635 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
636 | <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
637 | <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
638 | <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
639 | </pre> | |
640 | <p> | |
641 | </p> | |
642 | </td> | |
643 | <td> | |
644 | <p> | |
645 | For dynamically bounded intervals there are for static functions | |
646 | to construct intervals with the four interval bound types: | |
647 | </p> | |
648 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">discrete_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">discrete_interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span> | |
649 | <span class="identifier">continuous_interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">></span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">continuous_interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> | |
650 | </pre> | |
651 | <p> | |
652 | </p> | |
653 | </td> | |
654 | </tr> | |
655 | <tr> | |
656 | <td> | |
657 | <p> | |
658 | <span class="emphasis"><em><span class="bold"><strong>Using the interval default</strong></span></em></span> | |
659 | </p> | |
660 | </td> | |
661 | <td> | |
662 | <p> | |
663 | </p> | |
664 | </td> | |
665 | </tr> | |
666 | <tr> | |
667 | <td> | |
668 | <p> | |
669 | <code class="computeroutput"><span class="identifier">interval</span><span class="special"><</span><span class="identifier">P</span><span class="special">>::</span><span class="identifier">type</span></code> | |
670 | </p> | |
671 | </td> | |
672 | <td> | |
673 | <p> | |
674 | There is a library default, for all interval containers of the <span class="bold"><strong>icl</strong></span>. The intension of the library default | |
675 | is to minimize the need for parameter specification, when working | |
676 | with <span class="bold"><strong>icl</strong></span> class templates. We can | |
677 | get the library default interval type as <code class="computeroutput"><span class="identifier">interval</span><span class="special"><</span><span class="identifier">P</span><span class="special">>::</span><span class="identifier">type</span></code>. | |
678 | The library default uses <span class="emphasis"><em><span class="bold"><strong>dynamically | |
679 | bounded intervals</strong></span></em></span>. You can switch to <span class="emphasis"><em><span class="bold"><strong>statically bounded intervals</strong></span></em></span> by | |
680 | <code class="computeroutput"><span class="preprocessor">#define</span> <span class="identifier">BOOST_ICL_USE_STATIC_BOUNDED_INTERVALS</span></code> | |
681 | prior to icl includes. | |
682 | </p> | |
683 | </td> | |
684 | </tr> | |
685 | <tr> | |
686 | <td> | |
687 | <p> | |
688 | ||
689 | </p> | |
690 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">right_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
691 | <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">left_open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
692 | <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">closed</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
693 | <span class="keyword">static</span> <span class="identifier">T</span> <span class="identifier">open</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">P</span><span class="special">&,</span> <span class="keyword">const</span> <span class="identifier">P</span><span class="special">&)</span> | |
694 | </pre> | |
695 | <p> | |
696 | </p> | |
697 | </td> | |
698 | <td> | |
699 | <p> | |
700 | For template struct <code class="computeroutput"><span class="identifier">interval</span></code> | |
701 | that always uses the library default the static functions for the | |
702 | four interval bound types are also available. | |
703 | </p> | |
704 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span> | |
705 | <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> | |
706 | </pre> | |
707 | <p> | |
708 | This works with the statically bounded intervals as well, with the | |
709 | restriction that for continuous domain types the matching function | |
710 | has to be used: | |
711 | </p> | |
712 | <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_ICL_USE_STATIC_BOUNDED_INTERVALS</span> | |
713 | <span class="special">.</span> <span class="special">.</span> <span class="special">.</span> | |
714 | <span class="comment">// library default is the statically bounded right_open_interval | |
715 | </span><span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv1</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">int</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0</span><span class="special">,</span><span class="number">42</span><span class="special">);</span> <span class="comment">//==[0,43) //ok, bounds are shifted | |
716 | </span><span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv2</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">right_open</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> <span class="comment">//ok. right_open matches | |
717 | </span><span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">type</span> <span class="identifier">itv3</span> <span class="special">=</span> <span class="identifier">interval</span><span class="special"><</span><span class="keyword">double</span><span class="special">>::</span><span class="identifier">closed</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">);</span> <span class="comment">//will NOT compile | |
718 | </span></pre> | |
719 | <p> | |
720 | See also examples <a class="link" href="../examples/dynamic_interval.html" title="Dynamic interval">Dynamic | |
721 | intervals</a> and <a class="link" href="../examples/static_interval.html" title="Static interval">Static | |
722 | intervals</a> | |
723 | </p> | |
724 | </td> | |
725 | </tr> | |
726 | </tbody> | |
727 | </table></div> | |
728 | <p> | |
729 | <span class="emphasis"><em><span class="bold"><strong>See also . . .</strong></span></em></span> | |
730 | </p> | |
731 | <div class="informaltable"><table class="table"> | |
732 | <colgroup><col></colgroup> | |
733 | <thead><tr></tr></thead> | |
734 | <tbody> | |
735 | <tr><td> | |
736 | <p> | |
737 | <a class="link" href="../examples/dynamic_interval.html" title="Dynamic interval"><span class="emphasis"><em><span class="bold"><strong>Example: Dynamically bounded intervals and the library | |
738 | default</strong></span></em></span></a> | |
739 | </p> | |
740 | </td></tr> | |
741 | <tr><td> | |
742 | <p> | |
743 | <a class="link" href="../examples/static_interval.html" title="Static interval"><span class="emphasis"><em><span class="bold"><strong>Example: Statically bounded intervals, changing the library | |
744 | default</strong></span></em></span></a> | |
745 | </p> | |
746 | </td></tr> | |
747 | </tbody> | |
748 | </table></div> | |
749 | <p> | |
750 | <span class="emphasis"><em><span class="bold"><strong>Back to section . . .</strong></span></em></span> | |
751 | </p> | |
752 | <div class="informaltable"><table class="table"> | |
753 | <colgroup><col></colgroup> | |
754 | <thead><tr></tr></thead> | |
755 | <tbody> | |
756 | <tr><td> | |
757 | <p> | |
758 | <a class="link" href="../interface/function_synopsis.html#additional_interval_functions"><span class="emphasis"><em><span class="bold"><strong>Additional interval functions</strong></span></em></span></a> | |
759 | </p> | |
760 | </td></tr> | |
761 | <tr><td> | |
762 | <p> | |
763 | <a class="link" href="../interface/function_synopsis.html#function_synopsis_table"><span class="emphasis"><em><span class="bold"><strong>Function | |
764 | Synopsis</strong></span></em></span></a> | |
765 | </p> | |
766 | </td></tr> | |
767 | <tr><td> | |
768 | <p> | |
769 | <a class="link" href="../interface.html" title="Interface"><span class="emphasis"><em><span class="bold"><strong>Interface</strong></span></em></span></a> | |
770 | </p> | |
771 | </td></tr> | |
772 | </tbody> | |
773 | </table></div> | |
774 | </div> | |
775 | <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> | |
776 | <td align="left"></td> | |
777 | <td align="right"><div class="copyright-footer">Copyright © 2007 -2010 Joachim Faulhaber<br>Copyright © 1999 -2006 Cortex Software GmbH<p> | |
778 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
779 | file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) | |
780 | </p> | |
781 | </div></td> | |
782 | </tr></table> | |
783 | <hr> | |
784 | <div class="spirit-nav"> | |
785 | <a accesskey="p" href="streaming__conversion.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../function_reference.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="additional_interval_orderings.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> | |
786 | </div> | |
787 | </body> | |
788 | </html> |