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<h2><span class="refentrytitle">Class no_slots_error</span></h2>
<p>boost::signals2::no_slots_error — Indicates a combiner was unable to synthesize a return value.</p>
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<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="../../signals2/reference.html#header.boost.signals2.last_value_hpp" title="Header <boost/signals2/last_value.hpp>">boost/signals2/last_value.hpp</a>>
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<span class="keyword">class</span> <a class="link" href="no_slots_error.html" title="Class no_slots_error">no_slots_error</a> <span class="special">:</span> <span class="keyword">public</span> std::exception <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
<span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keyword">char</span> <span class="special">*</span> <a class="link" href="no_slots_error.html#idm45506981208416-bb"><span class="identifier">what</span></a><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></pre></div>
<div class="refsect1">
<a name="idm45555131466320"></a><h2>Description</h2>The <code class="computeroutput">no_slots_error</code> exception may be thrown by <a class="link" href="last_value.html" title="Class template last_value">signals2::last_value</a>
when it is run but unable to obtain any results from its input iterators.
<pre class="literallayout"><span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keyword">char</span> <span class="special">*</span> <a name="idm45506981208416-bb"></a><span class="identifier">what</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
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<td align="right"><div class="copyright-footer">Copyright © 2001-2004 Douglas Gregor<br>Copyright © 2007-2009 Frank Mori Hess<p>Distributed under the Boost
Software License, Version 1.0. (See accompanying file
<code class="filename">LICENSE_1_0.txt</code> 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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