visit_top() [6/6]

template<typename T >

template<typename Func >

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

inline

Visits each node, starting at the root node, for const trees.

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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