5.15 Unchanged Forms

How to Design Programs Languages

5

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5.1	define
5.2	define-struct
5.3	lambda
5.4	Function Calls
5.5	begin
5.6	begin0
5.7	set!
5.8	delay
5.9	shared
5.10	let
5.11	recur
5.12	case
5.13	when and unless
5.14	Primitive Operations
5.15	Unchanged Forms

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check-member-of

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5.15 Unchanged Forms

(local [definition ...] expr)

(letrec ([id expr-for-let] ...) expr)

(let* ([id expr-for-let] ...) expr)

The same as Intermediate’s local, letrec, and let*.

(cond [expr expr] ... [expr expr])

The same as Beginning’s cond, except that else can be used with case.

(if expr expr expr)

The same as Beginning’s if.

(and expr expr expr ...)

(or expr expr expr ...)

The same as Beginning’s and and or.

(time expr)

The same as Intermediate’s time.

(check-expect expr expr)

(check-within expr expr expr)

(check-error expr expr)

(check-member-of expr expr expr ...)

(check-range expr expr expr)

The same as Beginning’s check-expect, etc.

true : boolean?

false : boolean?

Constants for the empty list, true, and false.

(require module-path)

The same as Beginning’s require.

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