Function teia::complex::compute_boundary

pub fn compute_boundary<'a, 'b, I, G, V>(iter: I, elem: &'b G) -> Option<V> where
    G: 'a + PartialEq + ChainGenerator + ChainGeneratorBoundary<'b, G>,
    I: Iterator<Item = (usize, &'a G)> + Clone,
    V: FromIterator<(usize, Sign)>,