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<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Struct template accumulator_set</title> <link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> <link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> <link rel="up" href="../../accumulators/reference.html#header.boost.accumulators.accumulators_fwd_hpp" title="Header <boost/accumulators/accumulators_fwd.hpp>"> <link rel="prev" href="with_cached_result.html" title="Struct template with_cached_result"> <link rel="next" href="extractor.html" title="Struct template extractor"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr> <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> <td align="center"><a href="../../../../index.html">Home</a></td> <td align="center"><a href="../../../../libs/libraries.htm">Libraries</a></td> <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> <td align="center"><a href="../../../../more/index.htm">More</a></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="with_cached_result.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../accumulators/reference.html#header.boost.accumulators.accumulators_fwd_hpp"><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="extractor.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="refentry"> <a name="boost.accumulators.accumulator_set"></a><div class="titlepage"></div> <div class="refnamediv"> <h2>Struct template accumulator_set</h2> boost::accumulators::accumulator_set — A set of accumulators. </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">// 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>> template<typename Sample, typename Features, typename Weight = void> struct <a class="link" href="accumulator_set.html" title="Struct template accumulator_set">accumulator_set</a> { // <a class="link" href="accumulator_set.html#boost.accumulators.accumulator_setconstruct-copy-destruct">construct/copy/destruct</a> template<typename A1> explicit <a class="link" href="accumulator_set.html#idp65442208-bb">accumulator_set</a>(A1 const &); // <a class="link" href="accumulator_set.html#idp65423600-bb">public member functions</a> template<typename UnaryFunction> void <a class="link" href="accumulator_set.html#idp65424160-bb">visit</a>(UnaryFunction const &); template<typename FilterPred, typename UnaryFunction> void <a class="link" href="accumulator_set.html#idp65427424-bb">visit_if</a>(UnaryFunction const &); void <a class="link" href="accumulator_set.html#idp65431328-bb">operator()</a>(); template<typename A1> void <a class="link" href="accumulator_set.html#idp65432592-bb">operator()</a>(A1 const &); template<typename Feature> apply< Feature >::type & <a class="link" href="accumulator_set.html#idp65434976-bb">extract</a>(); template<typename Feature> apply< Feature >::type const & <a class="link" href="accumulator_set.html#idp65437248-bb">extract</a>() const; template<typename Feature> void <a class="link" href="accumulator_set.html#idp65440064-bb">drop</a>(); };</pre></div> <div class="refsect1"> <a name="idp99360800"></a><h2>Description</h2> <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. 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. <div class="refsect2"> <a name="idp99362832"></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">template<typename A1> explicit <a name="idp65442208-bb"></a>accumulator_set(A1 const & a1);</pre> This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. <div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody><tr> <td>Parameters:</td> <td><div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody><tr> <td><code class="computeroutput">a1</code></td> <td>Optional named parameter to be passed to all the accumulators </td> </tr></tbody> </table></div></td> </tr></tbody> </table></div> </li></ol></div> </div> <div class="refsect2"> <a name="idp99377472"></a><h3> <a name="idp65423600-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">template<typename UnaryFunction> void <a name="idp65424160-bb"></a>visit(UnaryFunction const & func);</pre> Visitation <div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody><tr> <td>Parameters:</td> <td><div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody><tr> <td><code class="computeroutput">func</code></td> <td>UnaryFunction which is invoked with each accumulator in turn. </td> </tr></tbody> </table></div></td> </tr></tbody> </table></div> </li> <li class="listitem"> <pre class="literallayout">template<typename FilterPred, typename UnaryFunction> void <a name="idp65427424-bb"></a>visit_if(UnaryFunction const & func);</pre> Conditional visitation <div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody><tr> <td>Parameters:</td> <td><div class="variablelist"><table border="0" class="variablelist compact"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody><tr> <td><code class="computeroutput">func</code></td> <td>UnaryFunction which is invoked with each accumulator in turn, provided the accumulator satisfies the MPL predicate FilterPred. </td> </tr></tbody> </table></div></td> </tr></tbody> </table></div> </li> <li class="listitem"> <pre class="literallayout">void <a name="idp65431328-bb"></a>operator()();</pre> Accumulation </li> <li class="listitem"><pre class="literallayout">template<typename A1> void <a name="idp65432592-bb"></a>operator()(A1 const & a1);</pre></li> <li class="listitem"> <pre class="literallayout">template<typename Feature> apply< Feature >::type & <a name="idp65434976-bb"></a>extract();</pre>Extraction. </li> <li class="listitem"> <pre class="literallayout">template<typename Feature> apply< Feature >::type const & <a name="idp65437248-bb"></a>extract() const;</pre> This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts. </li> <li class="listitem"> <pre class="literallayout">template<typename Feature> void <a name="idp65440064-bb"></a>drop();</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 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>) </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="with_cached_result.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../accumulators/reference.html#header.boost.accumulators.accumulators_fwd_hpp"><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="extractor.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>