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    <p>You need a fixed point combinator. See <a href="https://stackoverflow.com/questions/6453011/my-implementation-of-fixed-point-combinator-in-c0x-compiled-under-vistual-stud">this</a>.</p> <p>or look at the following code:</p> <pre><code>//As decltype(variable)::member_name is invalid currently, //the following template is a workaround. //Usage: t2t&lt;decltype(variable)&gt;::t::member_name template&lt;typename T&gt; struct t2t { typedef T t; }; template&lt;typename R, typename V&gt; struct fixpoint { typedef std::function&lt;R (V)&gt; func_t; typedef std::function&lt;func_t (func_t)&gt; tfunc_t; typedef std::function&lt;func_t (tfunc_t)&gt; yfunc_t; class loopfunc_t { public: func_t operator()(loopfunc_t v)const { return func(v); } template&lt;typename L&gt; loopfunc_t(const L &amp;l):func(l){} typedef V Parameter_t; private: std::function&lt;func_t (loopfunc_t)&gt; func; }; static yfunc_t fix; }; template&lt;typename R, typename V&gt; typename fixpoint&lt;R, V&gt;::yfunc_t fixpoint&lt;R, V&gt;::fix = [](fixpoint&lt;R, V&gt;::tfunc_t f) -&gt; fixpoint&lt;R, V&gt;::func_t { fixpoint&lt;R, V&gt;::loopfunc_t l = [f](fixpoint&lt;R, V&gt;::loopfunc_t x) -&gt; fixpoint&lt;R, V&gt;::func_t{ //f cannot be captured since it is not a local variable //of this scope. We need a new reference to it. auto &amp;ff = f; //We need struct t2t because template parameter //V is not accessable in this level. return [ff, x](t2t&lt;decltype(x)&gt;::t::Parameter_t v){ return ff(x(x))(v); }; }; return l(l); }; int _tmain(int argc, _TCHAR* argv[]) { int v = 0; std::function&lt;int (int)&gt; fac = fixpoint&lt;int, int&gt;::fix([](std::function&lt;int (int)&gt; f) -&gt; std::function&lt;int (int)&gt;{ return [f](int i) -&gt; int{ if(i==0) return 1; else return i * f(i-1); }; }); int i = fac(10); std::cout &lt;&lt; i; //3628800 return 0; } </code></pre>
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