chj_rustbin::util::div

Function btreemap_get_mut

Source 
pub fn btreemap_get_mut<'m, K, P: Ord + ?Sized, V>(
    m: &'m mut BTreeMap<K, V>,
    k: &P,
) -> Result<&'m mut V, &'m mut BTreeMap<K, V>>
where
    K: Borrow<P> + Ord,