link is not called "raco", then it uses `setup-plt` mode, which
treats arguments as file names instead of collection names.
You can work around the problem by supplying `-l` before
`mycollection`.
At Thu, 27 Feb 2014 14:56:58 +0100, Tobias Hammer wrote:
Hi,
if i use a softlink on lin
s if i am trying something evil or for
possible workarounds.
Tobias
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on to SVG format.
* Under unix, Racket provides desktop entries (.desktop files) for
its graphical executables.
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_
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e questions are:
A. Is there dot product function available?
B. Is there any reason that matrix* yields single-element matrix (2)
Thanks
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DLR / Robotics and Mechatronics Center (RMC)
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T
My normal workflow for this (preferring post-mortem analysis because no
special flags for gdb required)
enable core dumps
ulimit -c unlimited
cat segv.rkt
#lang racket
(require ffi/unsafe)
(define _strlen (get-ffi-obj "strlen" #f (_fun _pointer -> _int)))
(_strlen #f)
racket segv.rkt
SI
On Sun, 13 Oct 2013 21:37:55 +0200, Eli Barzilay wrote:
2. One thing on Windows that prevents removing a directory is when
there's a process whose working directory you're trying to delete.
(I keep running into that when I try to remove some directory and
there's a cygwin shell in that
our-filesystem-change-evt)]) ;1
(define f (dynamic-require 'racket/base 'filesystem-change-evt))
(match (f (build-path 'same) (const our-filesystem-change-evt))
[(? procedure? f) f] ;2
[(? evt?) f]))) ;3
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to have no real impact as i get the exactly same error with just leaving
it out?
Thanks for any clarification.
Tobias
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Muenchner Str. 20, D-82234 Wessling
Tel.: 08153/28-1487
M
On Tue, 27 Aug 2013 20:03:43 +0200, Greg Hendershott
wrote:
I've been wondering whether it would be more practical for
struct-generated
names to concatenate with colon (":") as a separator, rather than with
minus
("-").
1. Yes. In addition to name conflicts, it's harder on human code
re
On Tue, 27 Aug 2013 22:35:06 +0200, Asumu Takikawa
wrote:
In addition, the test predicate should take an exception value so
`negative?` won't work. You probably want a predicate like
`(λ (e) (regexp-match #rx"negative?" (exn-message e)))` instead.
Slightly OT:
check-exn can directly take a re
d/should rackunit provide something like `check-expansion`?
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Tel.: 08153/28-1487
Mail: tob
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nce an identifier before its definition
;; in module: 'm
;; phase: 1
;; context...:
;;standard-module-name-resolver
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Tobias Hammer
DLR / Robotics and Mechatronics Center (RMC)
Muenchner Str. 20, D-82234 Wessling
Te
Thanks again
R
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Tobias Hammer
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the same file (full of from-to pairs) are a bunch of
straight string replacements, like this:
> >
> >("…""\\…")
> >
> >
> >I cannot figure out what's wrong with this one: what to do here
> >
> >("\n""\n")
&
Sorry for the misinformation but Eli is of course right that regexp-quote
must be used.
Example:
(regexp-match? "a" "abc")
#t
(regexp-match? "." "abc")
#t ; WRONG! '.' matches every character
(regexp-match? (regexp-quote "a") "abc")
#t
(regexp-match? (regexp-quote ".") "abc")
#f
On
A difference is that `quasisyntax/loc' is predefined --- so, in some
sense, you're not supposed to know that it's a macro, and maybe it
should just work.
Offhand, I can imagine ways to fix the interaction of `quasisyntax' and
`quasisyntax/loc', but I'll have to think
Or even shorter
(regexp-match? sub-str str)
(Didn't know that worked)
On Tue, 04 Jun 2013 13:34:37 +0200, Tobias Hammer
wrote:
I think regexp are the right choice:
(regexp-match? (regexp sub-str) str))
On Tue, 04 Jun 2013 12:43:02 +0200, Daniel Prager
wrote:
I've just
lso most welcome.
-- Dan
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Tobias Hammer
DLR / Robotics and Mechatronics Center (RMC)
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Tel.: 08153/28-1487
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var 'outer])
(quasisyntax/loc stx
(let ([var 'inner])
(quasisyntax/loc #'here
#,var]))
(loc)
#
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Tobias Hammer
DLR / Robotics and Mechatronics Center (RMC)
Muenchner Str. 20, D-8223
;d as my example runs with #lang
racket/load)
Tobias
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ate-dependent-function (add v)
(set! state (cons v state)))
(define-invocation-local-state-dependent-function (get)
state)
(provide (except-out (all-from-out racket/base)
#%module-begin)
(rename-out [module-begin #%module-begin])
add get)
On Tue, May 28,
ut racket/base)
#%module-begin)
(rename-out [module-begin #%module-begin])
add get)
On Tue, May 28, 2013 at 5:59 AM, Tobias Hammer
wrote:
Hi,
i am trying to write a simple language that has variables that should
not be
shar
of complexity.
So, the question is, what is the right way to get the desired behavior?
Tobias
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Tel.: 08153/28-1487
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te:
I think it doesn't scale past about 6, which is probably why the limit
of 8
is there.
Robby
On Fri, May 3, 2013 at 7:00 AM, Tobias Hammer
wrote:
> Good hint.
> Only on 32bit linux it's limited to 4 and on 64bit the hard limit
seems to
> be 8.
> It's good
13:53:58 +0200, Robby Findler
wrote:
It is with a 32 bit build (possibly only under windows, I forget).
I believe the issue is that the docs building phase runs out of memory
with
more.
Robby
On Fri, May 3, 2013 at 6:47 AM, Tobias Hammer
wrote:
Hi,
is raco setup limited to use
claim that).
Tobias
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Tobias Hammer
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Today nightlies.
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Mail: tobias.ham...@dlr.de
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r' also should be
changed, because "generator" now means something specific and
different.
At Thu, 28 Mar 2013 16:08:09 +0100, Tobias Hammer wrote:
Hi,
i am trying to understand how nack-guard-evt works. Therefore i created
the appended test program. Sometimes it stops with the e
ync/timeout 0. nack))
'ALWAYS
#f
. . sync/timeout: contract violation
expected: evt?
given: #f
argument position: 2nd
other arguments...:
0.0
OR
'ALWAYS
#
#
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---------
Tobias Hammer
DLR / Robotics and Mechatronics Cen
ms very counter
intuitive.
On Thu, Mar 21, 2013 at 1:51 AM, Tobias Hammer
wrote:
> The difference lies in the method how racket and raco make check for
> changes.
> - racket only looks at each individual file's timestamp source and
.zo
> timestamp and uses whichever is never
ne give some insight on what I
should be expecting?
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Tel.: 08153/28-1487
Mail: tobia
-get place1)
(place-channel-get place2)
(place-channel-get place1)
(place-channel-get place2)
(place-wait place1)
(place-wait place2)
(void))
(define (noplaces-main)
(test-function test-vector)
(test-function test-vector)
(void))
On Thu, Mar 14
s cpu time: 15787 real time: 23318 gc time: 1373
Without places cpu time: 7769 real time: 9456 gc time: 4461
Press any key to continue . . .
--
Thanks,
Harry Spier
--
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Tobias Hammer
DLR / Institute of Robotics and Mechatronics
(struct-out id), not _id still works. Only the 'special' names like _id,
_id-pointer etc. are not included.
Tobias
On Sat, 09 Mar 2013 09:24:02 +0100, Pierpaolo Bernardi
wrote:
Hello,
I understand that there isn't an abbreviation equivalent to (provide
(struct-out ...)), but for cstruc
e' to `ffi/unsafe', risking collisions with existing
code? Or add `ffi/size' (or `ffi/size_t')?
At Fri, 8 Feb 2013 20:45:07 +0100, Tobias Hammer wrote:
This should work:
_uintptr = size_t
_intptr = ssize_t
Tobias
On Fri, 08 Feb 2013 20:40:43 +0100, Tony Garnock-Jones
w
ze_t _long)
./racket/draw/unsafe/jpeg.rkt: (define _size_t _intptr)
... of which the last one looks most likely to work properly.
Cheers,
Tony
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Tobias
When you pass it directly to c-code, maybe you can completely bypass the
array and convert
matrix -> flarray -> flvector -> cpointer
the last 3 conversions should be blazing fast but i guess that won't
matter much for 16 elements.
Neil, can you nevertheless tell me more about the expected perf
disable.
If it is enabled, I currently get this curious error from the compiler:
../collects/compiler/cm.rkt:438:6: write: cannot marshal value that is
embedded in compiled code
value: #
I unsure whether it is a bug in my code, or in cm.rkt.
--
--
On Sun, 20 Jan 2013 15:09:42 +0100, Jens Axel Søgaard
wrote:
Note: Disable "Populate "compiled" directories (for faster loading)"
to run it in DrRacket. To disable: Choose the language menu.
Choose the menu item "Choose language". Click the button
"advanced". The
ll of
the background expansion features) as requested by Tobias. At least that
way we can address the immediate problem.
Robby
On Thu, Nov 22, 2012 at 10:00 AM, Tobias Hammer
wrote:
The arrows are definitely far more distracting because they overlap
everything and pop up whenever i have to
ectly.
Tobias
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Mail: tobias.ham...@dlr.de
Racket Users list:
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modifier key? (I
think (hope...) that that isn't being used for anything yet.)
Robby
On Thu, Nov 22, 2012 at 10:00 AM, Tobias Hammer
wrote:
The arrows are definitely far more distracting because they overlap
everything and pop up whenever i have to click somewhere. The tooltips
an
ltips?
Robby
On Thu, Nov 22, 2012 at 1:21 AM, Tobias Hammer
wrote:
Is there a way to disable the hover-arrows without disabling the error
messages from online compilation?
Tobias
On Wed, 21 Nov 2012 20:17:59 +0100, Robby Findler
wrote:
Right click in the circle on the the bottom of rig
et...@acm.org | http://www.wisdomandwonder.com/
Wisdom begins in wonder.
((λ (x) (x x)) (λ (x) (x x)))
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On Wed, 21 Nov 2012 15:33:06 +0100, Greg Hendershott
wrote:
The lexical context you're picking up to put on #'args in the lam
macro is the context that's sitting on the parentheses in the first
argument to 'lam' in the body of 'expand-to-lam'. that context has no
"x" bound.
OK, that explain
-tmp")
Is there an easier way to append together syntax?
Thanks,
Ray
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Mail: tobias.ham...@dlr.de
on DrRacket, but when I tried to run it under
>> > racket
>> > (the command-line executable) it shows the sever started message
and
>> > quits,
>> > so the server doesn't keep running. Is there anyway to make racket
wait
>> > until it's proc
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ed as the
end of the pattern.
You have to escape the quote too... " ... \\\" ... "
--- nadeem
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Tobias Hammer
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Tel.: 08153/28-1487
Mail: to
From the docs (3.13 Hash Tables):
Caveat concerning mutable keys: If a key in an equal?-based hash table is
mutated (e.g., a key string is modified with string-set!), then the hash
table’s behavior for insertion and lookup operations becomes unpredictable.
Try make-hasheq instead of make-has
The whole enclosing module (file) is executed again on every call to place.
Add a print before the place start to see it. Seems to be broken since <
5.2.1.
On Thu, 18 Oct 2012 06:39:56 +0200, Nick Shelley
wrote:
It looks like that was the problem. Thanks!
However, if I add (place-wait p
gs…) returns. However the documentation doesn't actually say
that. Is that just an oversight, or is the return value of
CALL-WITH-SEMAPHORE undefined?
Best wishes,
Norman
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Tobias Hammer
DLR / Institute of Robotics and Mechatr
d point, Tobias.
I'd actually be fine with `define-logger' acting like
`define/provide-logger' -- just go ahead and provide them all.
Because I don't see opacity being such a useful option for a logger,
as opposed to something like a struct?
On Fri, Sep 7, 2012 at 12:21 PM,
llel to `make-log-receiver'.
* Changed the GC to log messages to a 'GC logger, the optimizer to log
to an 'optimizer logger, and the futures subsystem to log to a
'future logger.
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(sudoku)
Cannot open file /Users/gregwoodhouse/sudoku/puzzles/puzzle-4a.sdk
#(struct:exn:fail:filesystem call-with-input-file: cannot open input file
path: /Users/gregwoodhouse/sudoku/puzzles/puzzle-4a.sdk
system error: Permission denied; errno=13 #)
and
(with-handlers
rtex 0.4 0.4)
(gl-end)))
(set! init? #f)
(send canvas on-paint
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