module Core_int63

: sig

63 or 64 bit integers.

The size of Int63 is always at least 63 bits. On a 64-bit platform it is just an int (63-bits), and on a 32-bit platform it is an int64.

Because Int63 has different sizes on 32-bit and 64-bit platforms, there are several pitfalls to be aware of:

include Int_intf.S with type t = private int
val of_int : int -> t
val to_int : t -> int option