Juin 2009 - Gambit-list - mailman.iro.umontreal.ca

eval
by lowly coder 07 Jui '09

07 Jui '09

Why does gambit's eval ignore the second argument (environment)? Is there some way I fake this by grabbing environments & evaluating in them? Thanks! (eval being able to choose an environment, in my mind, is a bug plus of scheme) Thanks!

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Termite + Black Hole
by Jamie Briggs 06 Jui '09

06 Jui '09

On the Black Hole page of the Gambit wiki, in the "additional Libraries" section there is the line: Termite: A version suited for usage in Black Hole is found at X. Are BH and Termite currently incompatible? And if so, how? I was just going to try using them together but then realized I would probably notice gross problems but might be not catch subtle ones. - Jamie

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gambit, iphone, and LOAD
by James Long 05 Jui '09

05 Jui '09

Hey, folks. I'm using Gambit on the iPhone. There's one thing I can't get working on it, and that's the LOAD procedure. I've heard reports that you can't load dynamic libraries on the iPhone, but I can't find any documentation about it. Besides, LOAD doesn't work to load in raw scheme code either. When my application attempts to use LOAD in an app running on the iPhone simulator, it simply crashes without any messages (both when the file is compiled and not). I'm not sure how to debug this, and I was wondering two things: do you use LOAD on the iphone? is there anything in LOAD which I should look at when running Gambit on a different platform than usual? I think loading dynamic libraries should work in the simulator. And EVAL definitely works, so loading in raw source should work too. I just looked around the Gambit source and everything around these two mechanisms seems fine. - James

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Performance of the interpreter
by Lam Luu 05 Jui '09

05 Jui '09

Hello everyone, I am trying to write a web service in Scheme, so I wish to keep the code in source form (not compiled). I know that Gambit has an very good compiler, but I have not heard much about the interpreter (gsi). Does anyone have an idea how efficient it is, especially in comparison to the compiler as well as other interpreted languages like Perl, Python, and Ruby? Thank you!

2 1

scheme scriptable unicode terminal?
by lowly coder 04 Jui '09

04 Jui '09

Hi! I've been a big fan of rxvt-unicode for a while now; but I really really want a terminal with scheme as it's extension language. Anyone using one? Thanks!

3 2

destructuring bind define-type
by lowly coder 02 Jui '09

02 Jui '09

are there any amcros that play well with destructuring bind of define-type's ? I just want to check to see if there's a pre-existing solution before re-inventing my own. I find myself writing way too much code of the form: (define-type foo a b) (define-type bar c d) (lambda (x) (let ((c (bar-c x) (d (bar-d x))) (let ((a (foo-a a) (b (foo-b b)) ... Thanks!

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profiling code being interpreted by gsi
by lowly coder 31 Mai '09

31 Mai '09

Hi! I have a largeish gambit application. It's interpreted under gsi, and is taking up around 25% of my dual core laptop. I would like to profile to see what functions are taking up all the time. How can I do this? (Searching for profiling in the gambit documentation brings up stuff focused on how to profile scheme code that has been compiled to C, but not on profiling of interpreted code.) Thanks!

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