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<div class="section">
<div class="titlepage"><div><div><h5 class="title">
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy"></a><a class="link" href="covered_by_3_with_strategy.html" title="covered_by (with strategy)">covered_by
(with strategy)</a>
</h5></div></div></div>
<p>
<a class="indexterm" name="idp110324720"></a>
Checks if the first geometry is inside or on border the second geometry
using the specified strategy.
</p>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h0"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.description"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.description">Description</a>
</h6>
<p>
The free function covered_by checks if the first geometry is inside or
on border the second geometry, using the specified strategy. Reasons
to specify a strategy include: use another coordinate system for calculations;
construct the strategy beforehand (e.g. with the radius of the Earth);
select a strategy when there are more than one available for a calculation.
</p>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h1"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.synopsis"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.synopsis">Synopsis</a>
</h6>
<p>
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Geometry1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry2</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Strategy</span><span class="special">&gt;</span>
<span class="keyword">bool</span> <span class="identifier">covered_by</span><span class="special">(</span><span class="identifier">Geometry1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry1</span><span class="special">,</span> <span class="identifier">Geometry2</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry2</span><span class="special">,</span> <span class="identifier">Strategy</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">strategy</span><span class="special">)</span></pre>
<p>
</p>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h2"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.parameters"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.parameters">Parameters</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Type
</p>
</th>
<th>
<p>
Concept
</p>
</th>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Description
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
Geometry1 const &amp;
</p>
</td>
<td>
<p>
Any type fulfilling a Geometry Concept
</p>
</td>
<td>
<p>
geometry1
</p>
</td>
<td>
<p>
A model of the specified concept which might be inside or on
the border of the second geometry
</p>
</td>
</tr>
<tr>
<td>
<p>
Geometry2 const &amp;
</p>
</td>
<td>
<p>
Any type fulfilling a Geometry Concept
</p>
</td>
<td>
<p>
geometry2
</p>
</td>
<td>
<p>
A model of the specified concept which might cover the first
geometry
</p>
</td>
</tr>
<tr>
<td>
<p>
Strategy const &amp;
</p>
</td>
<td>
</td>
<td>
<p>
strategy
</p>
</td>
<td>
<p>
strategy to be used
</p>
</td>
</tr>
</tbody>
</table></div>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h3"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.returns"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.returns">Returns</a>
</h6>
<p>
true if geometry1 is inside of or on the border of geometry2, else false
</p>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h4"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.header"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.header">Header</a>
</h6>
<p>
Either
</p>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
</p>
<p>
Or
</p>
<p>
<code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">algorithms</span><span class="special">/</span><span class="identifier">covered_by</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
</p>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h5"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.conformance"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.conformance">Conformance</a>
</h6>
<p>
The function covered_by is not defined by OGC.
</p>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
Both PostGIS and Oracle contain an algorithm with the same name and
the same functionality. See the <a href="http://www.postgis.org/docs/ST_CoveredBy.html" target="_top">PostGIS
documentation</a>.
</p></td></tr>
</table></div>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h6"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.supported_geometries"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.supported_geometries">Supported
geometries</a>
</h6>
<div class="informaltable"><table class="table">
<colgroup>
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<col>
<col>
<col>
<col>
<col>
<col>
<col>
<col>
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</colgroup>
<thead><tr>
<th>
</th>
<th>
<p>
Point
</p>
</th>
<th>
<p>
Segment
</p>
</th>
<th>
<p>
Box
</p>
</th>
<th>
<p>
Linestring
</p>
</th>
<th>
<p>
Ring
</p>
</th>
<th>
<p>
Polygon
</p>
</th>
<th>
<p>
MultiPoint
</p>
</th>
<th>
<p>
MultiLinestring
</p>
</th>
<th>
<p>
MultiPolygon
</p>
</th>
<th>
<p>
Variant
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
Point
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
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<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
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<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
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<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
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<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
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<td>
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<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
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<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
Segment
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
Box
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
Linestring
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
Ring
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
Polygon
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
MultiPoint
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
MultiLinestring
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
MultiPolygon
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
</tr>
<tr>
<td>
<p>
Variant
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/ok.png" alt="ok"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../../../img/nyi.png" alt="nyi"></span>
</p>
</td>
</tr>
</tbody>
</table></div>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
In this status matrix above: columns are types of first parameter and
rows are types of second parameter. So a point can be checked to be
covered by a polygon, but not vice versa.
</p></td></tr>
</table></div>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h7"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.complexity"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.complexity">Complexity</a>
</h6>
<p>
Linear
</p>
<h6>
<a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.h8"></a>
<span class="phrase"><a name="geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.see_also"></a></span><a class="link" href="covered_by_3_with_strategy.html#geometry.reference.algorithms.covered_by.covered_by_3_with_strategy.see_also">See
also</a>
</h6>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
<a class="link" href="../within.html" title="within">within</a>
</li></ul></div>
<div class="note"><table border="0" summary="Note">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../../doc/src/images/note.png"></td>
<th align="left">Note</th>
</tr>
<tr><td align="left" valign="top"><p>
The difference with the <code class="computeroutput"><span class="identifier">within</span></code>
algorithm is that this algorithm checks the border by default
</p></td></tr>
</table></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2009-2015 Barend Gehrels, Bruno Lalande,
Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
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>)
</p>
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