> ------------------------------ > > Message: 2 > Date: Tue, 19 Jun 2018 11:18:30 -0400 > From: Joshua Branson <jbra...@fastmail.com> > To: guile-user@gnu.org > Subject: lat? and atom? not in guile? > Message-ID: <877emuyfcp....@fastmail.com> > Content-Type: text/plain > > > Hello, > > This question comes from a non-scheme guy. I'm not trying to be > critical of guile. I'm just curious. > > So I have the book "The Little Schemer". The book describes the > procedures: "lat?" and "atom?". Surprisingly, guile does not seem to > define these procedures by default. I had assumed that these procedures > were apart of standard scheme, but I guess that is not the case. > > Is there any plan to define these procedures? > > Thanks, > > Joshua
Good choice, I am reading it too currently. Maybe I should share my unit tests somewhere? I think many Schemes do not implement these procedures. Guile does not and neither does Racket, which I used for most of the books examples and exercises. I think those procedures are defined in the book in order to have a common ground for a lot of Schemes, so that you can use whatever you want and so that the ideas of the book are clear and not dependent on one specific Scheme dialect. I don't know about any plans of the Guile developers though. ~ Zelphir
