IStdlib.PartialOrder
type total = [
| `LeftSmallerThanRight
| `Equal
| `RightSmallerThanLeft
]
type t = [
| total
| `NotComparable
val join : [< t ] -> [< t ] -> t
type 'a xcompare = lhs:'a -> rhs:'a -> t
type 'a xcompare_total = lhs:'a -> rhs:'a -> total
val of_compare : compare:('a -> 'a -> int) -> 'a xcompare_total
val of_le : le:('a -> 'a -> bool) -> 'a xcompare
val of_opt : xcompare_elt:'a xcompare -> 'a option xcompare
val container : fold:('t, 'a * 'a, t) IStdlib.IStd.Container.fold -> 't -> xcompare_elt:'a xcompare -> t