SchemeDT:Boolean

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Contents 1 Action 2 Derivation 3 C++ 4 External Rep 5 Example

Action

A boolean is a native Scheme data type having either the value #t (true) or the value #f (false). It represents a logical, or Boolean, value.

Derivation

boolean:scheme-object

C++

logical

External Rep

#t or #f

Example

; boolean (data type) 
; Define and query a boolean Scheme object. 
(define ON #t) 
;; ON 
(define OFF #f) 
;; OFF 
(boolean? ON) 
;; #t
(boolean? OFF)
;; #t
(boolean? 1)
;; #f