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24</div>
25<div class="section boost_icl_function_reference_size" lang="en">
26<div class="titlepage"><div><div><h3 class="title">
27<a name="boost_icl.function_reference.size"></a><a class="link" href="size.html" title="Size">Size</a>
28</h3></div></div></div>
29<div class="informaltable"><table class="table">
30<colgroup>
31<col>
32<col>
33<col>
34<col>
35<col>
36<col>
37</colgroup>
38<thead><tr>
39<th>
40 <p>
41 <span class="emphasis"><em><span class="bold"><strong>Size</strong></span></em></span>
42 </p>
43 </th>
44<th>
45 <p>
46 intervals
47 </p>
48 </th>
49<th>
50 <p>
51 interval<br> sets
52 </p>
53 </th>
54<th>
55 <p>
56 interval<br> maps
57 </p>
58 </th>
59<th>
60 <p>
61 element<br> sets
62 </p>
63 </th>
64<th>
65 <p>
66 element<br> maps
67 </p>
68 </th>
69</tr></thead>
70<tbody>
71<tr>
72<td>
73 <p>
74 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">T</span><span class="special">::</span><span class="identifier">size</span><span class="special">()</span><span class="keyword">const</span></code><br>
75 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">size</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
76 </p>
77 </td>
78<td>
79 <p>
80 <span class="emphasis"><em>O(1)</em></span>
81 </p>
82 </td>
83<td>
84 <p>
85 <span class="emphasis"><em>O(n)</em></span>
86 </p>
87 </td>
88<td>
89 <p>
90 <span class="emphasis"><em>O(n)</em></span>
91 </p>
92 </td>
93<td>
94 <p>
95 <span class="emphasis"><em>O(1)</em></span>
96 </p>
97 </td>
98<td>
99 <p>
100 <span class="emphasis"><em>O(1)</em></span>
101 </p>
102 </td>
103</tr>
104<tr>
105<td>
106 <p>
107 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">cardinality</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
108 </p>
109 </td>
110<td>
111 <p>
112 <span class="emphasis"><em>O(1)</em></span>
113 </p>
114 </td>
115<td>
116 <p>
117 <span class="emphasis"><em>O(n)</em></span>
118 </p>
119 </td>
120<td>
121 <p>
122 <span class="emphasis"><em>O(n)</em></span>
123 </p>
124 </td>
125<td>
126 <p>
127 <span class="emphasis"><em>O(1)</em></span>
128 </p>
129 </td>
130<td>
131 <p>
132 <span class="emphasis"><em>O(1)</em></span>
133 </p>
134 </td>
135</tr>
136<tr>
137<td>
138 <p>
139 <code class="computeroutput"><span class="identifier">difference_type</span> <span class="identifier">length</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
140 </p>
141 </td>
142<td>
143 <p>
144 <span class="emphasis"><em>O(1)</em></span>
145 </p>
146 </td>
147<td>
148 <p>
149 <span class="emphasis"><em>O(n)</em></span>
150 </p>
151 </td>
152<td>
153 <p>
154 <span class="emphasis"><em>O(n)</em></span>
155 </p>
156 </td>
157<td>
158 <p>
159 </p>
160 </td>
161<td>
162 <p>
163 </p>
164 </td>
165</tr>
166<tr>
167<td>
168 <p>
169 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">iterative_size</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
170 </p>
171 </td>
172<td>
173 <p>
174 </p>
175 </td>
176<td>
177 <p>
178 <span class="emphasis"><em>O(1)</em></span>
179 </p>
180 </td>
181<td>
182 <p>
183 <span class="emphasis"><em>O(1)</em></span>
184 </p>
185 </td>
186<td>
187 <p>
188 <span class="emphasis"><em>O(1)</em></span>
189 </p>
190 </td>
191<td>
192 <p>
193 <span class="emphasis"><em>O(1)</em></span>
194 </p>
195 </td>
196</tr>
197<tr>
198<td>
199 <p>
200 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">interval_count</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
201 </p>
202 </td>
203<td>
204 <p>
205 </p>
206 </td>
207<td>
208 <p>
209 <span class="emphasis"><em>O(1)</em></span>
210 </p>
211 </td>
212<td>
213 <p>
214 <span class="emphasis"><em>O(1)</em></span>
215 </p>
216 </td>
217<td>
218 <p>
219 </p>
220 </td>
221<td>
222 <p>
223 </p>
224 </td>
225</tr>
226</tbody>
227</table></div>
228<p>
229 For <span class="bold"><strong>icl</strong></span> containers the single <code class="computeroutput"><span class="identifier">size</span></code> function known from std containers
230 branches into tree to five different members functions. The table above shows
231 the types, <code class="computeroutput"><span class="identifier">size</span></code> functions
232 are implemented for, together with their <span class="bold"><strong>complexities</strong></span>.
233 Linear complexities <span class="emphasis"><em>O(n)</em></span> refer to the container's <code class="computeroutput"><span class="identifier">iterative_size</span></code>:
234</p>
235<pre class="programlisting"><span class="identifier">n</span> <span class="special">=</span> <span class="identifier">y</span><span class="special">.</span><span class="identifier">iterative_size</span><span class="special">()</span>
236</pre>
237<p>
238 </p>
239<p>
240 The next table gives a short definition for the different size functions.
241 </p>
242<div class="informaltable"><table class="table">
243<colgroup>
244<col>
245<col>
246<col>
247</colgroup>
248<thead><tr>
249<th>
250 <p>
251 <span class="emphasis"><em><span class="bold"><strong>Size</strong></span></em></span>
252 </p>
253 </th>
254<th>
255 <p>
256 Types
257 </p>
258 </th>
259<th>
260 <p>
261 Description
262 </p>
263 </th>
264</tr></thead>
265<tbody>
266<tr>
267<td>
268 <p>
269 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">interval_count</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
270 </p>
271 </td>
272<td>
273 <p>
274 <a class="link" href="../interface/function_synopsis.html#interval_set_types"><span class="bold"><strong>S</strong></span></a>
275 <a class="link" href="../interface/function_synopsis.html#interval_map_types"><span class="bold"><strong>M</strong></span></a>
276 </p>
277 </td>
278<td>
279 <p>
280 The number of intervals of an interval container.
281 </p>
282 </td>
283</tr>
284<tr>
285<td>
286 <p>
287 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">iterative_size</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
288 </p>
289 </td>
290<td>
291 <p>
292 <a class="link" href="../interface/function_synopsis.html#interval_set_types"><span class="bold"><strong>S</strong></span></a>
293 <a class="link" href="../interface/function_synopsis.html#interval_map_types"><span class="bold"><strong>M</strong></span></a>
294 <a class="link" href="../interface/function_synopsis.html#itl_set_type"><span class="bold"><strong>s</strong></span></a>
295 <a class="link" href="../interface/function_synopsis.html#itl_map_type"><span class="bold"><strong>m</strong></span></a>
296 </p>
297 </td>
298<td>
299 <p>
300 The number of objects in an icl container that can be iterated over.
301 </p>
302 </td>
303</tr>
304<tr>
305<td>
306 <p>
307 <code class="computeroutput"><span class="identifier">difference_type</span> <span class="identifier">length</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
308 </p>
309 </td>
310<td>
311 <p>
312 <a class="link" href="../interface/function_synopsis.html#interval_type"><span class="bold"><strong>i</strong></span></a>
313 <a class="link" href="../interface/function_synopsis.html#interval_set_types"><span class="bold"><strong>S</strong></span></a>
314 <a class="link" href="../interface/function_synopsis.html#interval_map_types"><span class="bold"><strong>M</strong></span></a>
315 </p>
316 </td>
317<td>
318 <p>
319 The length of an interval or the sum of lengths of an interval container's
320 intervals, that's <code class="computeroutput"><span class="identifier">domain_type</span></code>
321 has a <code class="computeroutput"><span class="identifier">difference_type</span></code>.
322 </p>
323 </td>
324</tr>
325<tr>
326<td>
327 <p>
328 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">cardinality</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
329 </p>
330 </td>
331<td>
332 <p>
333 <a class="link" href="../interface/function_synopsis.html#interval_type"><span class="bold"><strong>i</strong></span></a>
334 <a class="link" href="../interface/function_synopsis.html#interval_set_types"><span class="bold"><strong>S</strong></span></a>
335 <a class="link" href="../interface/function_synopsis.html#interval_map_types"><span class="bold"><strong>M</strong></span></a>
336 <a class="link" href="../interface/function_synopsis.html#itl_set_type"><span class="bold"><strong>s</strong></span></a>
337 <a class="link" href="../interface/function_synopsis.html#itl_map_type"><span class="bold"><strong>m</strong></span></a>
338 </p>
339 </td>
340<td>
341 <p>
342 The number of elements of an interval or a container. For continuous
343 data types cardinality can be <span class="emphasis"><em>infinite</em></span>.
344 </p>
345 </td>
346</tr>
347<tr>
348<td>
349 <p>
350 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">T</span><span class="special">::</span><span class="identifier">size</span><span class="special">()</span><span class="keyword">const</span></code><br>
351 <code class="computeroutput"><span class="identifier">size_type</span> <span class="identifier">size</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">T</span><span class="special">&amp;)</span></code>
352 </p>
353 </td>
354<td>
355 <p>
356 <a class="link" href="../interface/function_synopsis.html#interval_type"><span class="bold"><strong>i</strong></span></a>
357 <a class="link" href="../interface/function_synopsis.html#interval_set_types"><span class="bold"><strong>S</strong></span></a>
358 <a class="link" href="../interface/function_synopsis.html#interval_map_types"><span class="bold"><strong>M</strong></span></a>
359 <a class="link" href="../interface/function_synopsis.html#itl_set_type"><span class="bold"><strong>s</strong></span></a>
360 <a class="link" href="../interface/function_synopsis.html#itl_map_type"><span class="bold"><strong>m</strong></span></a>
361 </p>
362 </td>
363<td>
364 <p>
365 The number of elements of an interval or a container, which is also
366 it's <code class="computeroutput"><span class="identifier">cardinality</span></code>.
367 </p>
368 </td>
369</tr>
370</tbody>
371</table></div>
372<p>
373 <span class="emphasis"><em><span class="bold"><strong>Back to section . . .</strong></span></em></span>
374 </p>
375<div class="informaltable"><table class="table">
376<colgroup><col></colgroup>
377<thead><tr></tr></thead>
378<tbody>
379<tr><td>
380 <p>
381 <a class="link" href="../interface/function_synopsis.html#function_synopsis_table"><span class="emphasis"><em><span class="bold"><strong>Function
382 Synopsis</strong></span></em></span></a>
383 </p>
384 </td></tr>
385<tr><td>
386 <p>
387 <a class="link" href="../interface.html" title="Interface"><span class="emphasis"><em><span class="bold"><strong>Interface</strong></span></em></span></a>
388 </p>
389 </td></tr>
390</tbody>
391</table></div>
392</div>
393<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
394<td align="left"></td>
395<td align="right"><div class="copyright-footer">Copyright &#169; 2007 -2010 Joachim Faulhaber<br>Copyright &#169; 1999 -2006 Cortex Software GmbH<p>
396 Distributed under the Boost Software License, Version 1.0. (See accompanying
397 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>)
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