pe deduction system">the section called &#8220;Extending return type deduction system&#8221;</a>). 
	The second is to use a special lambda expression (<code class="literal">ret</code>) which defines the return type in place (see <a class="xref" href="le_in_details.html#lambda.overriding_deduced_return_type" title="Overriding the deduced return type">the section called &#8220;Overriding the deduced return type&#8221;</a>):

	</p>
<pre class="programlisting">A a; B b; ret&lt;C&gt;(_1 + _2)(a, b);</pre>
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