I don't have a great idea, but can you use gdb to attach to the
spinning "racketcgc" process (that's running "xform.rkt") and get a
stack trace?
My guess is that something goes wrong in communicating with the
subprocess that created by "xform.rkt" to run the C preprocessor, and
we should be able t
You may already know that `datum-intern-literal` is implemented
similarly, but `datum-intern-literal` hashes only certain kinds of
values. The `canonicalize` function below accepts arbitrary values, so
the `equal-hash-code` and `equal?` operations by the hash table can
call arbitrary code. Running
> However, (I’m guessing) using world or w makes it clear that the
functions
> are meant to be used with big-bang.
This is on the right track. You are programming using the universe API.
This API manipulates what changes in a game which it calls a world. What a
world actually is depends on the gam
Hi all,
I'd love any comments on the following as a general technique for
"hash-consing" - that is, making (equal?) imply (eq?). (Corollary: two
canonicalized values will be (eq?) iff they are (equal?).)
Is it worth considering this as something to push into the C runtime for
speed?
#lang rack
In this program, a world is just an interval.
All of those w s could be replaced with ivl s, because a world is an interval,
and the value of the parameter will always be an interval.
However, (I’m guessing) using world or w makes it clear that the functions are
meant to be used with big-ba
In Guess My Number I see the following definitions:
(define (smaller w)
(interval (interval-small w)
(max (interval-small w) (sub1 (guess w)
(define (bigger w)
(interval (min (interval-big w) (add1 (guess w)))
(interval-big w)))
(define (guess w)
(quotient (+ (int
I have not had a lot of experience building Racket from source, but I
downloaded the minimal racket source and followed the instructions on the
readme. The configure step seems to encounter no problems, but when I run
make afterwards, it gets to the step of "Compiling xform support... Done
making x
Thank you very much!
This is it.
Sun, 29 Jun 2014 20:39:33 -0500 от Robby Findler :
>Yes, I believe this is what you want:
>
>#lang racket
>
>(define (chaperone-f f)
> (chaperone-procedure
> f
> (λ (fst . more)
> (printf "fst arg: ~s\n" fst)
> (apply values fst more
>
>((chapero
Hi,
2014-06-30 3:26 GMT+02:00 Jay McCarthy :
> Hi Jens,
>
> On Sun, Jun 29, 2014 at 8:39 AM, Jens Axel Søgaard
> wrote:
>> Hi All,
>>
>> I am attempting to install the git version of Whalesong.
>> There is a conflict with already existing installed module - but which one?
>> I can't see anything
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