Your suggestion works, but only for explicitly parameterized parameters. There may be parameters that I don't know of, but nevertheless may affect my protected-caller. Therefore I want ALL parameters protected. Thanks, Jos
-----Original Message----- From: racket-users@googlegroups.com [mailto:racket-users@googlegroups.com] On Behalf Of jon stenerson Sent: miércoles, 13 de enero de 2016 0:50 To: racket-users@googlegroups.com Subject: Re: [racket-users] Calling a procedure without allowing it to permanently alter parameters. Can you use this instead? (define (protected-caller thunk) (parameterize ([p 'anything]) (thunk))) Works for me Jon -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
