Vicare Scheme’s typed language: built-in numerics octets base

6.13.17.1 The `<octet>` type

Label Type: <octet>
Parent Type: <non-negative-fixnum>: Type of octet values. An “octet” is a fixnum in the range [0, 255].

Constructor on <octet>: <octet> type-constructor obj: Validate obj as object of type <octet>. Return obj itself.

Type predicate on <octet>: <boolean> type-predicate obj: The type predicate is octet-fixnum?. Return #t if obj is an object of type <octet>; otherwise return #f.