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Add functions to find reverse edge to DynamicGraph

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This commit is contained in:
Patrick Niklaus 2015-04-17 00:22:51 +02:00
parent f2cd68e3ec
commit 52592b84fd
1 changed files with 21 additions and 0 deletions
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21
data_structures/dynamic_graph.hpp
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@ -283,6 +283,27 @@ template <typename EdgeDataT> class DynamicGraph
return smallest_edge; return smallest_edge;
} }
EdgeIterator FindEdgeInEitherDirection(const NodeIterator from, const NodeIterator to) const
{
EdgeIterator tmp = FindEdge(from, to);
return (SPECIAL_NODEID != tmp ? tmp : FindEdge(to, from));
}
EdgeIterator
FindEdgeIndicateIfReverse(const NodeIterator from, const NodeIterator to, bool &result) const
{
EdgeIterator current_iterator = FindEdge(from, to);
if (SPECIAL_NODEID == current_iterator)
{
current_iterator = FindEdge(to, from);
if (SPECIAL_NODEID != current_iterator)
{
result = true;
}
}
return current_iterator;
}
protected: protected:
bool isDummy(const EdgeIterator edge) const bool isDummy(const EdgeIterator edge) const
{ {