Function geometry_predicates::predicates::four_four_sum

pub fn four_four_sum(
    a3: f64, 
    a2: f64, 
    a1: f64, 
    a0: f64, 
    b4: f64, 
    b3: f64, 
    b1: f64, 
    b0: f64
) -> [f64; 8]