Method contains

src/common/priority_queue.rs:160–162

Is i an index on this priority queue?

(&self, i: usize)

    /// Is i an index on this priority queue?
    pub fn contains(&self, i: usize) -> bool {
        self.qp[i] != -1
    }

    /// MinPQ: Returns an index associated with a minimum key
    /// MaxPQ: Returns an index associated with a maximum key