10.1 Multiple Values
See Multiple Return Values for general information about multiple result values. In addition to call-with-values (described in this section), the let-values, let*-values, letrec-values, and define-values forms (among others) create continuations that receive multiple values.
Returns the given vs. That is, values returns its provided arguments.
(call-with-values generator receiver) → any
generator : (-> any) receiver : procedure?
Calls generator, and passes the values that generator produces as arguments to receiver. Thus, call-with-values creates a continuation that accepts any number of values that receiver can accept. The receiver procedure is called in tail position with respect to the call-with-values call.
> (call-with-values (lambda () (values 1 2)) +)
> (call-with-values (lambda () 1) (lambda (x y) (+ x y)))
the expected number of arguments does not match the given