2010/10/15 Joe Python <jopyt...@gmail.com>: > When I try to call the builtin 'nth-value' , I was expecting a number, > instead I am getting a error. > > <snip> > #;1> (nth-value 2 '(2 3 4 5)) > Error: (list-tail) out of range > ((2 3 4 5)) > </snip>
You are expecting NTH-VALUE to do what LIST-REF actually does: #;1> (list-ref '(2 3 4 5) 2) 4 > The documentation says ; > [syntax] (nth-value N EXP) > > Returns the Nth value (counting from zero) of the values returned by > expression EXP. > > Did I interpret it wrong? Yes. NTH-VALUE is intended to be used with expressions that return multiple values, using VALUES: #;2> (nth-value 2 (values 2 3 4 5)) 4 --- Alonso _______________________________________________ Chicken-users mailing list Chicken-users@nongnu.org http://lists.nongnu.org/mailman/listinfo/chicken-users
