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| <title>Class filter</title> |
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| </div> |
| <div class="refentry"> |
| <a name="boost.log.filter"></a><div class="titlepage"></div> |
| <div class="refnamediv"> |
| <h2><span class="refentrytitle">Class filter</span></h2> |
| <p>boost::log::filter</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="../../expressions.html#header.boost.log.expressions.filter_hpp" title="Header <boost/log/expressions/filter.hpp>">boost/log/expressions/filter.hpp</a>> |
| |
| </span> |
| <span class="keyword">class</span> <a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="comment">// types</span> |
| <span class="keyword">typedef</span> <span class="keyword">bool</span> <a name="boost.log.filter.result_type"></a><span class="identifier">result_type</span><span class="special">;</span> <span class="comment">// Result type. </span> |
| |
| <span class="comment">// member classes/structs/unions</span> |
| |
| <span class="comment">// Default filter, always returns <code class="computeroutput">true</code>. </span> |
| |
| <span class="keyword">struct</span> <a class="link" href="filter/default_filter.html" title="Struct default_filter">default_filter</a> <span class="special">{</span> |
| <span class="comment">// types</span> |
| <span class="keyword">typedef</span> <span class="keyword">bool</span> <a class="link" href="filter/default_filter.html#boost.log.filter.default_filter.result_type"><span class="identifier">result_type</span></a><span class="special">;</span> |
| |
| <span class="comment">// <a class="link" href="filter/default_filter.html#idp40873600-bb">public member functions</a></span> |
| <span class="identifier">result_type</span> <a class="link" href="filter/default_filter.html#idp40874160-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">attribute_value_set</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</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="filter.html#boost.log.filterconstruct-copy-destruct">construct/copy/destruct</a></span> |
| <a class="link" href="filter.html#idp40886400-bb"><span class="identifier">filter</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> |
| <a class="link" href="filter.html#idp40887600-bb"><span class="identifier">filter</span></a><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> |
| <a class="link" href="filter.html#idp40889280-bb"><span class="identifier">filter</span></a><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FunT<span class="special">></span> <a class="link" href="filter.html#idp40891200-bb"><span class="identifier">filter</span></a><span class="special">(</span><span class="identifier">FunT</span> <span class="special">&&</span><span class="special">)</span><span class="special">;</span> |
| <a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span> <a class="link" href="filter.html#idp40893520-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> |
| <a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span> <a class="link" href="filter.html#idp40896016-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <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> FunT<span class="special">></span> <a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span> <a class="link" href="filter.html#idp40898272-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="identifier">FunT</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="filter.html#idp40877280-bb">public member functions</a></span> |
| <span class="identifier">result_type</span> <a class="link" href="filter.html#idp40877840-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">attribute_value_set</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> |
| <span class="keyword">void</span> <a class="link" href="filter.html#idp40881968-bb"><span class="identifier">reset</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> |
| <span class="keyword">void</span> <a class="link" href="filter.html#idp40883728-bb"><span class="identifier">swap</span></a><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> |
| <span class="special">}</span><span class="special">;</span></pre></div> |
| <div class="refsect1"> |
| <a name="idp111365488"></a><h2>Description</h2> |
| <p>Log record filter function wrapper. </p> |
| <div class="refsect2"> |
| <a name="idp111366208"></a><h3> |
| <a name="boost.log.filterconstruct-copy-destruct"></a><code class="computeroutput">filter</code> |
| public |
| construct/copy/destruct</h3> |
| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <li class="listitem"> |
| <pre class="literallayout"><a name="idp40886400-bb"></a><span class="identifier">filter</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> |
| <p>Default constructor. Creates a filter that always returns <code class="computeroutput">true</code>. </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><a name="idp40887600-bb"></a><span class="identifier">filter</span><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="keyword">const</span> <span class="special">&</span> that<span class="special">)</span><span class="special">;</span></pre> |
| <p>Copy constructor </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><a name="idp40889280-bb"></a><span class="identifier">filter</span><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&&</span> that<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre> |
| <p>Move constructor. The moved-from filter is left in an unspecified state. </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FunT<span class="special">></span> <a name="idp40891200-bb"></a><span class="identifier">filter</span><span class="special">(</span><span class="identifier">FunT</span> <span class="special">&&</span> fun<span class="special">)</span><span class="special">;</span></pre> |
| <p>Initializing constructor. Creates a filter which will invoke the specified function object. </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span> <a name="idp40893520-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&&</span> that<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre> |
| <p>Move assignment. The moved-from filter is left in an unspecified state. </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span> <a name="idp40896016-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="keyword">const</span> <span class="special">&</span> that<span class="special">)</span><span class="special">;</span></pre> |
| <p>Copy assignment. </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> FunT<span class="special">></span> <a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span> <a name="idp40898272-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="identifier">FunT</span> <span class="keyword">const</span> <span class="special">&</span> fun<span class="special">)</span><span class="special">;</span></pre> |
| <p>Initializing assignment. Sets the specified function object to the filter. </p> |
| </li> |
| </ol></div> |
| </div> |
| <div class="refsect2"> |
| <a name="idp111420304"></a><h3> |
| <a name="idp40877280-bb"></a><code class="computeroutput">filter</code> public member functions</h3> |
| <div class="orderedlist"><ol class="orderedlist" type="1"> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="identifier">result_type</span> <a name="idp40877840-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">attribute_value_set</span> <span class="keyword">const</span> <span class="special">&</span> values<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> |
| <p>Filtering operator.</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">values</code></span></p></td> |
| <td><p>Attribute values of the log record. </p></td> |
| </tr></tbody> |
| </table></div></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">Returns:</span></p></td> |
| <td><p><code class="computeroutput">true</code> if the log record passes the filter, <code class="computeroutput">false</code> otherwise. </p></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">void</span> <a name="idp40881968-bb"></a><span class="identifier">reset</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> |
| <p>Resets the filter to the default. The default filter always returns <code class="computeroutput">true</code>. </p> |
| </li> |
| <li class="listitem"> |
| <pre class="literallayout"><span class="keyword">void</span> <a name="idp40883728-bb"></a><span class="identifier">swap</span><span class="special">(</span><a class="link" href="filter.html" title="Class filter">filter</a> <span class="special">&</span> that<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre> |
| <p>Swaps two filters </p> |
| </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 © 2007-2015 Andrey |
| Semashev<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> |
| </div></td> |
| </tr></table> |
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