keyword">typename</span> Ptree<span class="special">,</span> <span class="keyword">typename</span> Ch<span class="special">&gt;</span> 
        <span class="keyword">void</span> <a class="link" href="../boost/property_tree/info_parser/read_i_1_3_33_10_3_1_1_1_1.html" title="Function template read_info"><span class="identifier">read_info</span></a><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">basic_istream</span><span class="special">