http://programmingexamples.net/w/index.php?action=history&feed=atom&title=CPP%2FFunctor 2026-04-27T17:11:17Z Revision history for this page on the wiki MediaWiki 1.23.5 http://programmingexamples.net/w/index.php?title=CPP/Functor&diff=2809&oldid=prev 2011-02-25T15:54:22Z

<p>Created page with &#039;==Functor.cpp== &lt;source lang=&quot;cpp&quot;&gt; #include &lt;iostream&gt; struct Function { virtual double operator() (const double x, const double&amp; y) const = 0; }; struct Add : public Functi…&#039;</p> <p><b>New page</b></p><div>==Functor.cpp==<br /> &lt;source lang=&quot;cpp&quot;&gt;<br /> #include &lt;iostream&gt;<br /> <br /> struct Function<br /> {<br /> virtual double operator() (const double x, const double&amp; y) const = 0;<br /> };<br /> <br /> struct Add : public Function<br /> {<br /> double operator() (const double x, const double&amp; y) const<br /> {<br /> return x+y;<br /> }<br /> };<br /> <br /> struct Multiply : public Function<br /> {<br /> double operator() (const double x, const double&amp; y) const<br /> {<br /> return x*y;<br /> }<br /> };<br /> <br /> int main(int argc, char *argv[])<br /> {<br /> Function* a;<br /> a = new Add;<br /> std::cout &lt;&lt; (*a)(2.,3.) &lt;&lt; std::endl;<br /> delete a;<br /> <br /> a = new Multiply;<br /> std::cout &lt;&lt; (*a)(2.,3.) &lt;&lt; std::endl;<br /> <br /> return 0;<br /> }<br /> <br /> &lt;/source&gt;<br /> <br /> ==CMakeLists.txt==<br /> &lt;source lang=&quot;cmake&quot;&gt;<br /> cmake_minimum_required(VERSION 2.6)<br /> <br /> PROJECT(Functor)<br /> <br /> ADD_EXECUTABLE(Functor Functor.cpp )<br /> <br /> &lt;/source&gt;</div>

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