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203 lines
7.1 KiB
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<div class="section">
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<div class="titlepage"><div><div><h3 class="title">
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<a name="boost_icl.concepts.aspects"></a><a class="link" href="aspects.html" title="Aspects">Aspects</a>
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</h3></div></div></div>
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<p>
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There are two major <span class="emphasis"><em><span class="bold"><strong>aspects</strong></span></em></span>
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or <span class="emphasis"><em><span class="bold"><strong>views</strong></span></em></span> of icl containers.
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The first and predominant aspect is called <span class="emphasis"><em><span class="bold"><strong>fundamental</strong></span></em></span>.
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The second and minor aspect is called <span class="emphasis"><em><span class="bold"><strong>segmental</strong></span></em></span>.
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</p>
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<div class="informaltable"><table class="table">
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<colgroup>
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<thead><tr>
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<th>
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</th>
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<th>
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<p>
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Fundamental
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</p>
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</th>
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<th>
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<p>
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Segmental
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</p>
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</th>
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</tr></thead>
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<tbody>
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<tr>
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<td>
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<p>
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Abstraction level
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</p>
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</td>
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<td>
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<p>
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more abstract
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</p>
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</td>
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<td>
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<p>
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less abstract
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</p>
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</td>
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<td>
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</td>
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<td>
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<p>
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sequence of elements is irrelevant
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</p>
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</td>
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<td>
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<p>
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sequence of elements is relevant
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</p>
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</td>
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</tr>
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<tr>
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<td>
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</td>
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<td>
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<p>
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iterator independent
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</p>
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</td>
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<td>
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<p>
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iterator dependent
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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Informs about
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</p>
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</td>
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<td>
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<p>
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membership of elements
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</p>
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</td>
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<td>
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<p>
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sequence of intervals (segmentation)
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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Equality
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</p>
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</td>
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<td>
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<p>
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equality of elements
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</p>
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</td>
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<td>
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<p>
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equality of segments
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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Practical
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</p>
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</td>
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<td>
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<p>
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interval_sets(maps) can be used as sets(maps) of elements(element
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value pairs)
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</p>
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</td>
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<td>
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<p>
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Segmentation information is available. See e.g. <a class="link" href="../examples/time_grids.html" title="Time grids for months and weeks">Time
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grids for months and weeks</a>
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</p>
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</td>
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</tr>
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</tbody>
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</table></div>
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<p>
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On the fundamental aspect
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</p>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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an <code class="computeroutput"><span class="identifier">interval</span></code> implements
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a set of elements partially.
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</li>
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<li class="listitem">
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an <code class="computeroutput"><a class="link" href="../../boost/icl/interval_set.html" title="Class template interval_set">interval_set</a></code>
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implements a set of elements.
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</li>
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<li class="listitem">
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an <code class="computeroutput"><a class="link" href="../../boost/icl/interval_map.html" title="Class template interval_map">interval_map</a></code>
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implements a map of element value pairs.
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</li>
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</ul></div>
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<p>
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On the segmental aspect
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</p>
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<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
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<li class="listitem">
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an <code class="computeroutput"><a class="link" href="../../boost/icl/interval_set.html" title="Class template interval_set">interval_set</a></code>
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implements a set of intervals.
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</li>
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<li class="listitem">
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an <code class="computeroutput"><a class="link" href="../../boost/icl/interval_map.html" title="Class template interval_map">interval_map</a></code>
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implements a map of interval value pairs.
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</li>
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</ul></div>
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</div>
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<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="left"></td>
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<td align="right"><div class="copyright-footer">Copyright © 2007-2010 Joachim
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Faulhaber<br>Copyright © 1999-2006 Cortex Software
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GmbH<p>
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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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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</p>
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</div></td>
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</tr></table>
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<hr>
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<div class="spirit-nav">
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<a accesskey="p" href="../concepts.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../concepts.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="sets_and_maps.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a>
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