Method find_child_index

rust/src/node.rs:621–627

(&self, key: &K)

    /// Find the index of the child that should contain the given key.
    #[inline]
    pub fn find_child_index(&self, key: &K) -> usize {
        // Binary search to find the appropriate child
        match self.keys.binary_search(key) {
            Ok(index) => index + 1, // Key found, go to right child
            Err(index) => index,    // Key not found, index is the insertion point
        }
    }

    /// Returns the number of keys in this branch node.
    pub fn len(&self) -> usize {