span> Class<span class="special">,</span> <span class="keyword">typename</span> Func<span class="special">&gt;</span> 
    <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a class="link" href="smart_library.html#idp28639872-bb"><span class="identifier">get_mem_fn</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span> <span class="special">&amp;</span