scheme: working in guile but not in lilypond?

Hi, the following code gives me the expected output in guile: (define-public lst `()) (define (set-new-alist! ls-1 ls-2 proc) (for-each (lambda (x) (set! ls-1 (acons x proc ls-1))) ls-2) ls-1) (set-new-alist! lst '(1 2 3) X) == ((3 . X) (2 . X) (1 . X)) trying similiar in lily: \version

Re: scheme: working in guile but not in lilypond?

Thomas Morley thomasmorle...@googlemail.com writes: Hi, the following code gives me the expected output in guile: (define-public lst `()) (define (set-new-alist! ls-1 ls-2 proc) (for-each (lambda (x) (set! ls-1 (acons x proc ls-1))) ls-2) ls-1) (set-new-alist! lst '(1 2 3) X) ==

Re: scheme: working in guile but not in lilypond?

\version 2.15.36 #(define-public lst `()) #(define (set-new-alist! ls-1 ls-2 proc) (for-each (lambda (x) (set! ls-1 (acons x proc ls-1))) ls-2) ls-1) #(set-new-alist! lst '(1 2 3) X) #(display lst) returns: () What am I missing? %% Well, if you change #(set-new-alist! lst '(1 2 3) X)