macro_rules! hashset {
(@single $($x:tt)*) => { ... };
(@count $($rest:expr),*) => { ... };
($($value:expr,)+) => { ... };
($($value:expr),*) => { ... };
}
Creates new HashSet
from a list of values.
let map = hashset![1, 1, 2];
assert!(map.contains(&1));
assert!(map.contains(&2));