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Small change with no_op in treeTraversal

release/4.3a0
Richard Roberts 2013-08-15 18:16:29 +00:00
parent 148e6f6898
commit 9b75df07ff
1 changed files with 6 additions and 3 deletions
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9
gtsam/base/treeTraversal-inst.h
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@ -51,8 +51,10 @@ namespace gtsam {
}; };
// Do nothing - default argument for post-visitor for tree traversal // Do nothing - default argument for post-visitor for tree traversal
template<typename NODE, typename DATA> struct no_op {
void no_op(const boost::shared_ptr<NODE>& node, const DATA& data) {} template<typename NODE, typename DATA>
void operator()(const boost::shared_ptr<NODE>& node, const DATA& data) {}
};
// Internal node used in parallel traversal stack // Internal node used in parallel traversal stack
template<typename NODE, typename DATA> template<typename NODE, typename DATA>
@ -251,7 +253,8 @@ namespace gtsam {
template<class FOREST, typename DATA, typename VISITOR_PRE> template<class FOREST, typename DATA, typename VISITOR_PRE>
void DepthFirstForest(FOREST& forest, DATA& rootData, VISITOR_PRE& visitorPre) void DepthFirstForest(FOREST& forest, DATA& rootData, VISITOR_PRE& visitorPre)
{ {
DepthFirstForest(forest, rootData, visitorPre, no_op<typename FOREST::Node, DATA>); no_op visitorPost;
DepthFirstForest(forest, rootData, visitorPre, visitorPost);
} }
/** Traverse a forest depth-first with pre-order and post-order visits. /** Traverse a forest depth-first with pre-order and post-order visits.