BloombergLP::bslalg::RbTreeUtil::upperBound

Return the address of the leftmost node holding the smallest value greater‐than value in the specified tree (organized according to the specified 'comparator) if found, and return tree.sentinel() if value is greater‐than or equal‐to the rightmost node in tree. COMPARATOR shall be a functor providing two methods that can be called as if they had the following signatures: ` bool operator()(const RbTreeNode&, const VALUE&) const; bool operator()(const VALUE&, const RbTreeNode&) const; ` The behavior is undefined unless comparator provides a strict weak ordering on objects of type VALUE, and tree is well‐formed (isWellFormed). Note that this function returns the last position before which value could be inserted into tree while preserving its ordering.