manpagez: man pages & more
info guile
Home | html | info | man
[ << ] [ < ] [ Up ] [ > ] [ >> ]         [Top] [Contents] [Index] [ ? ]

7.5.10 SRFI-11 - let-values

This module implements the binding forms for multiple values let-values and let*-values. These forms are similar to let and let* (see section Local Variable Bindings), but they support binding of the values returned by multiple-valued expressions.

Write (use-modules (srfi srfi-11)) to make the bindings available.

(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 expressions.


This document was generated on February 3, 2012 using texi2html 5.0.

© manpagez.com 2000-2024
Individual documents may contain additional copyright information.