btree_set!() { /* proc-macro */ }Expand description
An initializer for BTreeSet, allowing for items to be specified individually
or “spread” using the .. operator.
Usage
use velcro::btree_set;
let set: BTreeSet<_> = (0..7).into_iter().collect();
assert_eq!(btree_set![..(0..7)], set);
assert_eq!(btree_set![0, 1, ..(2..7)], set);