(* Standard Alpha Library *)

type string: 1 -> character
type BooleanXBoolean: [Boolean: x; Boolean: y]
type characterXcharacter: [character: x; character: y]
type integerXinteger: [integer: x; integer: y]

type Boolean2Boolean: Boolean -> Boolean
type integer2integer: integer -> integer
type character2integer: character -> integer
type Boolean2integer: Boolean -> integer
type string2integer: string -> integer
type integerXinteger2integer: integerXinteger -> integer
type integerXinteger2Boolean: integerXinteger -> Boolean
type characterXcharacter2Boolean: characterXcharacter -> Boolean
type BooleanXBoolean2Boolean: BooleanXBoolean -> Boolean
type integer2address: integer -> address
type address2integer: address -> integer
type integer2string: integer -> string
type integer2character: integer -> character
type integer2Boolean: integer -> Boolean


external function printInteger: integer2integer
external function printCharacter: character2integer
external function printBoolean: Boolean2integer

external function printS: string2integer
external function printI: integer2integer
external function printC: character2integer
external function printB: Boolean2integer

external function inS: integer2string
external function inI: integer2integer
external function inC: integer2character