visit_top() [5/6]

template<typename T >

template<typename Func >

std::result_of< Func(Valueconst &)>::type syten::BinaryTree::Tree< T >::visit_top ( Func &&  f, typename std::result_of< Func(Value &)>::type  initial, IterFirst const  dir = IterFirst::Left  )

inline

Visits each node, starting at the root node.

Parameters

f	function to call on each node value
initial	initial value of the accumulator
dir	left or right branch first?

Returns

the accumulated value from the root node and each branch

References syten::BinaryTree::Tree< T >::r, and syten::BinaryTree::Tree< T >::visit_top_rec().

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