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| <a name="boost.accumulators.accumulator_set"></a><div class="titlepage"></div> |
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| <h2><span class="refentrytitle">Struct template accumulator_set</span></h2> |
| <p>boost::accumulators::accumulator_set — A set of accumulators. </p> |
| </div> |
| <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> |
| <div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="comment">// In header: <<a class="link" href="../../accumulators/reference.html#header.boost.accumulators.accumulators_fwd_hpp" title="Header <boost/accumulators/accumulators_fwd.hpp>">boost/accumulators/accumulators_fwd.hpp</a>> |
| |
| </span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Sample<span class="special">,</span> <span class="keyword">typename</span> Features<span class="special">,</span> <span class="keyword">typename</span> Weight<span class="special">></span> |
| <span class="keyword">struct</span> <a class="link" href="accumulator_set.html" title="Struct template accumulator_set">accumulator_set</a> <span class="special">{</span> |
| <span class="comment">// <a class="link" href="accumulator_set.html#boost.accumulators.accumulator_setconstruct-copy-destruct">construct/copy/destruct</a></span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> A1<span class="special">></span> <span class="keyword">explicit</span> <a class="link" href="accumulator_set.html#idp57968736-bb"><span class="identifier">accumulator_set</span></a><span class="special">(</span><span class="identifier">A1</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| |
| <span class="comment">// <a class="link" href="accumulator_set.html#idp57950128-bb">public member functions</a></span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> UnaryFunction<span class="special">></span> <span class="keyword">void</span> <a class="link" href="accumulator_set.html#idp57950688-bb"><span class="identifier">visit</span></a><span class="special">(</span><span class="identifier">UnaryFunction</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FilterPred<span class="special">,</span> <span class="keyword">typename</span> UnaryFunction<span class="special">></span> |
| <span class="keyword">void</span> <a class="link" href="accumulator_set.html#idp57953952-bb"><span class="identifier">visit_if</span></a><span class="special">(</span><span class="identifier">UnaryFunction</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">void</span> <a class="link" href="accumulator_set.html#idp57957856-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> A1<span class="special">></span> <span class="keyword">void</span> <a class="link" href="accumulator_set.html#idp57959120-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">A1</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Feature<span class="special">></span> apply<span class="special"><</span> <span class="identifier">Feature</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <span class="special">&</span> <a class="link" href="accumulator_set.html#idp57961504-bb"><span class="identifier">extract</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Feature<span class="special">></span> apply<span class="special"><</span> <span class="identifier">Feature</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <span class="keyword">const</span> <span class="special">&</span> <a class="link" href="accumulator_set.html#idp57963776-bb"><span class="identifier">extract</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Feature<span class="special">></span> <span class="keyword">void</span> <a class="link" href="accumulator_set.html#idp57966592-bb"><span class="identifier">drop</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> |
| <span class="special">}</span><span class="special">;</span></pre></div> |
| <div class="refsect1"> |
| <a name="idp89849024"></a><h2>Description</h2> |
| <p><a class="link" href="accumulator_set.html" title="Struct template accumulator_set">accumulator_set</a> resolves the dependencies between features and ensures that the accumulators in the set are updated in the proper order.</p> |
| <p>acccumulator_set provides a general mechanism to visit the accumulators in the set in order, with or without a filter. You can also fetch a reference to an accumulator that corresponds to a feature. </p> |
| <div class="refsect2"> |
| <a name="idp89851056"></a><h3> |
| <a name="boost.accumulators.accumulator_setconstruct-copy-destruct"></a><code class="computeroutput">accumulator_set</code> |
| public |
| construct/copy/destruct</h3> |
| <div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> A1<span class="special">></span> <span class="keyword">explicit</span> <a name="idp57968736-bb"></a><span class="identifier">accumulator_set</span><span class="special">(</span><span class="identifier">A1</span> <span class="keyword">const</span> <span class="special">&</span> a1<span class="special">)</span><span class="special">;</span></pre> |
| <p>This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.</p> |
| <p> |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist compact"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term">Parameters:</span></p></td> |
| <td><div class="variablelist"><table border="0" class="variablelist compact"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term"><code class="computeroutput">a1</code></span></p></td> |
| <td><p>Optional named parameter to be passed to all the accumulators </p></td> |
| </tr></tbody> |
| </table></div></td> |
| </tr></tbody> |
| </table></div> |
| </li></ol></div> |
| </div> |
| <div class="refsect2"> |
| <a name="idp89865664"></a><h3> |
| <a name="idp57950128-bb"></a><code class="computeroutput">accumulator_set</code> public member functions</h3> |
| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> UnaryFunction<span class="special">></span> <span class="keyword">void</span> <a name="idp57950688-bb"></a><span class="identifier">visit</span><span class="special">(</span><span class="identifier">UnaryFunction</span> <span class="keyword">const</span> <span class="special">&</span> func<span class="special">)</span><span class="special">;</span></pre> |
| <p>Visitation |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist compact"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term">Parameters:</span></p></td> |
| <td><div class="variablelist"><table border="0" class="variablelist compact"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term"><code class="computeroutput">func</code></span></p></td> |
| <td><p>UnaryFunction which is invoked with each accumulator in turn. </p></td> |
| </tr></tbody> |
| </table></div></td> |
| </tr></tbody> |
| </table></div> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FilterPred<span class="special">,</span> <span class="keyword">typename</span> UnaryFunction<span class="special">></span> |
| <span class="keyword">void</span> <a name="idp57953952-bb"></a><span class="identifier">visit_if</span><span class="special">(</span><span class="identifier">UnaryFunction</span> <span class="keyword">const</span> <span class="special">&</span> func<span class="special">)</span><span class="special">;</span></pre> |
| <p>Conditional visitation |
| </p> |
| <div class="variablelist"><table border="0" class="variablelist compact"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term">Parameters:</span></p></td> |
| <td><div class="variablelist"><table border="0" class="variablelist compact"> |
| <colgroup> |
| <col align="left" valign="top"> |
| <col> |
| </colgroup> |
| <tbody><tr> |
| <td><p><span class="term"><code class="computeroutput">func</code></span></p></td> |
| <td><p>UnaryFunction which is invoked with each accumulator in turn, provided the accumulator satisfies the MPL predicate FilterPred. </p></td> |
| </tr></tbody> |
| </table></div></td> |
| </tr></tbody> |
| </table></div> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">void</span> <a name="idp57957856-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> |
| <p>Accumulation |
| </p> |
| </li> |
| <li class="listitem"><pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> A1<span class="special">></span> <span class="keyword">void</span> <a name="idp57959120-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">A1</span> <span class="keyword">const</span> <span class="special">&</span> a1<span class="special">)</span><span class="special">;</span></pre></li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Feature<span class="special">></span> apply<span class="special"><</span> <span class="identifier">Feature</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <span class="special">&</span> <a name="idp57961504-bb"></a><span class="identifier">extract</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Extraction. </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Feature<span class="special">></span> apply<span class="special"><</span> <span class="identifier">Feature</span> <span class="special">></span><span class="special">::</span><span class="identifier">type</span> <span class="keyword">const</span> <span class="special">&</span> <a name="idp57963776-bb"></a><span class="identifier">extract</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> |
| <p>This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Feature<span class="special">></span> <span class="keyword">void</span> <a name="idp57966592-bb"></a><span class="identifier">drop</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>Drop. </li> |
| </ol></div> |
| </div> |
| </div> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2005, 2006 Eric Niebler<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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