compare the value of the integers, notice this is different from const compare, which distinguished between signed and unsigned +1
val of_int : int ‑> t
val of_int32 : int32 ‑> t
val of_int64 : int64 ‑> t
val isminusone : t ‑> bool
val isnegative : t ‑> bool
val isnull : t ‑> bool
val isone : t ‑> bool
val iszero : t ‑> bool
val minus_one : t
val one : t
val to_int : t ‑> int
val two : t
val zero : t