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 <span id="projectnumber">2.10.0</span>
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<li class="navelem"><a class="el" href="namespacesigc.html">sigc</a></li><li class="navelem"><a class="el" href="structsigc_1_1adaptor__base.html">adaptor_base</a></li> </ul>
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<div class="title">sigc::adaptor_base Struct Reference<div class="ingroups"><a class="el" href="group__adaptors.html">Adaptors</a></div></div> </div>
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<p>A hint to the compiler.
<a href="structsigc_1_1adaptor__base.html#details">More...</a></p>
<p><code>#include <sigc++/adaptors/deduce_result_type.h></code></p>
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Inheritance diagram for sigc::adaptor_base:</div>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>A hint to the compiler. </p>
<p>Functors which have all methods based on templates should publicly inherit from this hint and define a nested template class <code><a class="el" href="structsigc_1_1deduce__result__type.html" title="Deduce the return type of a functor. ">deduce_result_type</a></code> that can be used to deduce the methods' return types.</p>
<p><a class="el" href="structsigc_1_1adaptor__base.html" title="A hint to the compiler. ">adaptor_base</a> inherits from the <a class="el" href="structsigc_1_1functor__base.html" title="A hint to the compiler. ">functor_base</a> hint so derived types should also have a result_type defined.</p>
<p>Adaptors don't inherit from this type directly. They use use <a class="el" href="structsigc_1_1adapts.html" title="Base type for adaptors. ">sigc::adapts</a> as a base type instead. sigc::adaptors wraps arbitrary functor types as well as function pointers and class methods. </p>
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