a) const </td></tr>
<tr class="memdesc:a7fc53c0667fdfb95dadd6a302f045941"><td class="mdescLeft">&#160;</td><td class="mdescRight">Return the flow on the given arc.  <a href="#a7fc53c0667fdfb95dadd6a302f045941">More...</a><br/></td></tr>
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<tr class="memitem:ac7fb0010590a95a23fda72ce45474a2a"><td class="memTemplParams" colspan="2">template&lt;typename FlowMap &gt; </td></tr>
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