Hello Lutz,
Im seeking for a solution ;-)
A 'While 'Unit 'dotree etc..are all loop based and im now trying to create
a simple loop myself that must loop the function but somehow im overseeing
something i think?
>(define (loop _func) ( while true _func))
but this does not work... you have a hint ?
Norman.
loop
This one will work:
(define-macro (loop _func) (while true (eval _func)))
now try:
(loop (println "."))
What happens in your function is the following: When the function argument (println ".") passes into your function it gets evaluated and evaluates to ".". Now inside your function you are doing a (while true "."), which will just sit there and loop without any output.
Using 'define-macro' leaves (println ".") un-evaluated and you get a
(while true (eval '(println ".")))
which will work
Lutz
(define-macro (loop _func) (while true (eval _func)))
now try:
(loop (println "."))
What happens in your function is the following: When the function argument (println ".") passes into your function it gets evaluated and evaluates to ".". Now inside your function you are doing a (while true "."), which will just sit there and loop without any output.
Using 'define-macro' leaves (println ".") un-evaluated and you get a
(while true (eval '(println ".")))
which will work
Lutz