         = <SPAN CLASS="omitted">default value</SPAN>,
                 <SPAN CLASS="keyword">int</SPAN> window_bits        = <SPAN CLASS="omitted">default value</SPAN>, 
                 <SPAN CLASS="keyword">int</SPAN> mem_level          = <SPAN CLASS="omitted">default value</SPAN>, 
                 <SPAN CLASS="keyword">int</SPAN> strategy           = <SPAN CLASS="omitted">default value</SPAN>,
                 std::string file_name  = "",
                 std::string comment    = "",
                 s