ypename Digraph &gt; </td></tr>
<tr class="memitem:gaef2b43c8cd1d74e15fa5c7607bc5e396"><td class="memTemplItemLeft" align="right" valign="top">bool&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="a00616.html#gaef2b43c8cd1d74e15fa5c7607bc5e396">dag</a> (const Digraph &amp;digraph)</td></tr>
<tr class="memdesc:gaef2b43c8cd1d74e15fa5c7607bc5e396"><td class="mdescLeft">&#160;</td><td class="mdescRight">Check whether a digraph is DAG.  <a href="a00616.html#gaef2b43c8cd1d74e15fa5c7607b