This module implements the binding forms for multiple values
let*-values. These forms are similar to
let* (see Local Bindings), but they support
binding of the values returned by multiple-valued expressions.
(use-modules (srfi srfi-11)) to make the bindings
(let-values (((x y) (values 1 2)) ((z f) (values 3 4))) (+ x y z f)) ⇒ 10
let-values performs all bindings simultaneously, which means that
no expression in the binding clauses may refer to variables bound in the
same clause list.
let*-values, on the other hand, performs the
bindings sequentially, just like
let* does for single-valued