On 01/21/2013 04:33 PM, Berthold Bäuml wrote:
I just did that. Here are the types:
real-matrix* : (Array Real) (Array Real) -> (Array Real)
flonum-matrix* : (Array Flonum) (Array Flonum) -> (Array Flonum)
flmatrix* : FlArray FlArray -> FlArray
Results so far, measured in DrRacket wit
Ahh,
yes you are right.
I compare it with the results in c++. There I get an Error_success in
getlasterror(), thatswhy I was a little bit confused about the
ERROR_PATH_NOT_FOUND in (GetLastError) in Racket.
Thank you very much.
Yours,
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Have you tried using define-syntax-class to define some of the
"intermediate chunks"?
For example would it help if you were to define a syntax class for
old-date, another for time-of-day, and compose old-timestamp from
those?
On Mon, Jan 21, 2013 at 3:04 PM, Lorenz Köhl wrote:
> How can I match
>
> I just did that. Here are the types:
>
> real-matrix* : (Array Real) (Array Real) -> (Array Real)
>
> flonum-matrix* : (Array Flonum) (Array Flonum) -> (Array Flonum)
>
> flmatrix* : FlArray FlArray -> FlArray
>
> Results so far, measured in DrRacket with debugging off:
>
> Function
How can I match datums more concisely with syntax-parse?
I get syntax objects like this from ragg:
#'(old-timestamp (old-date 2 23) (time-of-day 2 ":" 23 ":" 42))
The parts I care about are the numbers. I write patterns like
((~datum old-timestamp)
((~datum old-date) month day)
((~d
On 01/21/2013 02:48 AM, Pierpaolo Bernardi wrote:
Hello,
what's the most convenient way to convert between math/matrices and
FFI/arrays?
To reduce the scope of the question, at the moment I'm only interested
in conversions from and to the following FFI types:
(_array _double 3 3)
(_array _
I have considered adding something like this to the DrRacket teaching languages
for HtDP.
For an ordinary programmer, this conveys that tests do NOT prove anything but
that the function works on the supplied test cases.
Absolutely useful. Note: 30 years ago, this macro was the beginning of a
Hello,
your code looks fine to me.
On my virtualized installation of Windows XP it runs flawlessly and the
call to SendMessageTimeoutW returns with (= r4 1), which is a successful
result according to the Win32 API documentation [1]. The result of
GetLastError is meaningless in that context, s
On 21/01/13 05:22, Eli Barzilay wrote:
(Ah, and that explains the `define/test'. I don't know what's the
time-frame involved, but something that would be more ambitious would
be a language where the source code must have enough tests to get
complete coverage...)
Time frame is the end of the mo
2013/1/21 Tobias Hammer :
> The attached patch should fix it.
Thanks!
/Jens Axel
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On 20/01/13 22:26, Matthias Felleisen wrote:
On Jan 20, 2013, at 6:35 AM, Tim Brown wrote:
On Jan 18, 2013, at 12:36 PM, Tim Brown wrote:
A concrete example is that I am trying to write a #lang language.
Honestly, I would never ever try to write a #lang first.
That's more than most people wan
The attached patch should fix it.
Tobias
On Sun, 20 Jan 2013 15:09:42 +0100, Jens Axel Søgaard
wrote:
Hi Berthold,
2013/1/20 Berthold Bäuml :
I tried a little test with mildly large Flonum matrices using
math/matrix in Typed
Racket. Two 1000x1000 dimensional matrices should be multipli
Thank you very much,
but if I understand you right, I make it so:
[Code_Begin]
#lang racket
(require ffi/com
ffi/unsafe
ffi/unsafe/define
ffi/winapi
racket/string
racket/format)
(define _HKEY (_cpointer/null 'HKEY))
(define _HANDLE (_cpointer/null '
Hello,
what's the most convenient way to convert between math/matrices and
FFI/arrays?
To reduce the scope of the question, at the moment I'm only interested in
conversions from and to the following FFI types:
(_array _double 3 3)
(_array _double 3)
(_array _double 2 3)
Thanks!
P.
__
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