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// |reftest| skip-if(!this.hasOwnProperty("Tuple"))
// Treat 0..3, 4..7, etc. as equal.
const compare = (a, b) => (a / 4 | 0) - (b / 4 | 0);
// Create a tuple of the form `[0, 1, …, 126, 127]`.
var tup = Tuple.from({ length: 128 }, (_, i) => i);
const tuple1 = tup;
assertEq(tuple1.toSorted(compare), tup);
// Reverse `tup` so it becomes `[127, 126, …, 1, 0]`.
tup = tup.toReversed();
const tuple2 = tup;
assertEq(tuple2.toSorted(compare),
#[
3, 2, 1, 0, 7, 6, 5, 4, 11, 10, 9, 8,
15, 14, 13, 12, 19, 18, 17, 16, 23, 22, 21, 20,
27, 26, 25, 24, 31, 30, 29, 28, 35, 34, 33, 32,
39, 38, 37, 36, 43, 42, 41, 40, 47, 46, 45, 44,
51, 50, 49, 48, 55, 54, 53, 52, 59, 58, 57, 56,
63, 62, 61, 60, 67, 66, 65, 64, 71, 70, 69, 68,
75, 74, 73, 72, 79, 78, 77, 76, 83, 82, 81, 80,
87, 86, 85, 84, 91, 90, 89, 88, 95, 94, 93, 92,
99, 98, 97, 96, 103, 102, 101, 100, 107, 106, 105, 104,
111, 110, 109, 108, 115, 114, 113, 112, 119, 118, 117, 116,
123, 122, 121, 120, 127, 126, 125, 124,
]);
reportCompare(0, 0);