X-Git-Url: http://git.hcoop.net/bpt/guile.git/blobdiff_plain/ecb8733562079227b96b1a2884cd3cce6d3974bb..fa1a30726dc28c58cb01594ae6df27e80d4c2f00:/doc/ref/api-binding.texi

diff --git a/doc/ref/api-binding.texi b/doc/ref/api-binding.texi
index 5763f36de..5857e782f 100644
--- a/doc/ref/api-binding.texi
+++ b/doc/ref/api-binding.texi
@@ -1,7 +1,7 @@
 @c -*-texinfo-*-
 @c This is part of the GNU Guile Reference Manual.
-@c Copyright (C)  1996, 1997, 2000, 2001, 2002, 2003, 2004, 2009, 2010, 2011
-@c   Free Software Foundation, Inc.
+@c Copyright (C) 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2009, 2010, 2011,
+@c   2014 Free Software Foundation, Inc.
 @c See the file guile.texi for copying conditions.
 
 @node Binding Constructs
@@ -17,6 +17,7 @@ and expressions.  This is important for modularity and data abstraction.
 * Local Bindings::              Local variable bindings.
 * Internal Definitions::        Internal definitions.
 * Binding Reflection::          Querying variable bindings.
+* Binding Multiple Values::     Binding multiple return values.
 @end menu
 
 
@@ -218,9 +219,9 @@ variables.
 
 @lisp
 (letrec ((a 42)
-         (b (+ a 10)))
+         (b (+ a 10)))  ;; Illegal access
   (* a b))
-@result{} ;; Error: unbound variable: a
+;; The behavior of the expression above is unspecified
 
 (letrec* ((a 42)
           (b (+ a 10)))
@@ -321,6 +322,28 @@ the current module when @var{module} is not specified; otherwise return
 @end deffn
 
 
+@node Binding Multiple Values
+@subsection Binding multiple return values
+
+@deffn {Syntax} define-values formals expression
+The @var{expression} is evaluated, and the @var{formals} are bound to
+the return values in the same way that the formals in a @code{lambda}
+expression are matched to the arguments in a procedure call.
+@end deffn
+
+@example
+(define-values (q r) (floor/ 10 3))
+(list q r) @result{} (3 1)
+
+(define-values (x . y) (values 1 2 3))
+x @result{} 1
+y @result{} (2 3)
+
+(define-values x (values 1 2 3))
+x @result{} (1 2 3)
+@end example
+
+
 @c Local Variables:
 @c TeX-master: "guile.texi"
 @c End: