At Wed, 7 Oct 2015 08:40:12 +0200, Berthold Bäuml wrote:
> does call-as-atomic block garbage collection?
No.
> I want to call a C function from
> Racket which takes a pointer to a struct as an argument. The struct consists
> of a mixture of atomic and pointer fields and one of the pointers
At Mon, 5 Oct 2015 08:32:00 -0600, Matthew Flatt wrote:
> You could configure with `--enable-strip`
That should have been `--disable-strip`.
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At Mon, 05 Oct 2015 17:16:34 +0300, Dmitry Pavlov wrote:
> I am going to get you a stack trace.
> Am I correct that in order to get the stack trace, I have to rebuild
> Racket with -G and run it in gdb?
Racket builds with `-g` by default, but `make install` uses `strip`.
You could configure with
The `--redirect-main` flag redirects links that go to documentation in
installation scope only.
Locally, I imagine you're working from a development build out of the
main repo; in that case, a top-level `make` sets installation scope as
the default, so "sweep-exp" likely would be in installation
I think the top level can work better in this case. The current
behavior of this example is a result of trying to make some other
things work. I have an idea on how to make the other things work
without mangling this case, and I'll give it a try.
At Tue, 29 Sep 2015 18:46:12 -0400, Asumu Takikawa
At Mon, 21 Sep 2015 05:22:34 -0700 (PDT), Tim Brown wrote:
> On Sunday, August 9, 2015 at 11:11:00 AM UTC+1, Tim Brown wrote:
> > On 8 August 2015 15:13:01 BST, Matthew Flatt <mfl...@cs.utah.edu> wrote:
> > >I fixed the minor issue, but I haven't been able to figure out
I've tried the "rewind-gc" branch, and I still see the crash.
So, the good news is that the problem doesn't seem to be in recent GC
changes. The bad news is that I don't yet know the source of the
problem.
At Tue, 22 Sep 2015 10:54:10 -0600, Matthew Flatt wrote:
> It's possibl
I found and repaired one bug that would explain all the crashes I've
seen so far today. It's not a new bug, so I don't know why it would
have escaped detection before.
At Tue, 22 Sep 2015 16:13:52 -0600, Matthew Flatt wrote:
> I've tried the "rewind-gc" branch, and I still see the c
Which version of Racket are you building?
The parallel build uses Racket places (as opposed to threads), which is
why it can usefully build in parallel. There have historically some
bugs in the interaction of GC and places, but I haven't not seen
reports of problems with the latest release.
The
To try without the recent GC changes, you could build the "rewind-gc"
branch of
https://github.com/mflatt/racket
At Mon, 21 Sep 2015 00:08:43 +0300, Dmitry Pavlov wrote:
> Hello,
>
> I was just able to discover that my program crashes on the
> nightly build 6.2.900.17, on Linux. The program
At Sun, 20 Sep 2015 16:08:48 -0600, Matthew Flatt wrote:
> > I just tried the 32-bit Utah snapshot and 32-bit C app -- build OK,
> > but the app crashed right on scheme_main_setup with zero pointer
> > access. It did not even enter my "run" function.
>
> My
; > Matthew,
> >
> > Sure I meant the full distribution.
> > Thanks, I hope that the consensus will be reached :)
> >
> > Best regards,
> >
> > Dmitry
> >
> >
> > On 09/15/2015 08:06 PM, Matthew Flatt wrote:
> >> We left out &q
At Mon, 21 Sep 2015 01:04:15 +0300, Dmitry Pavlov wrote:
> Matthew,
>
> On 09/21/2015 12:38 AM, Matthew Flatt wrote:
> > At Sun, 20 Sep 2015 23:53:42 +0300, Dmitry Pavlov wrote:
> >> On Windows, though, I ran into a problem when linking my app
> >> with
At Sun, 20 Sep 2015 23:53:42 +0300, Dmitry Pavlov wrote:
> On Windows, though, I ran into a problem when linking my app
> with pre-built libracket3m_9yy8mp.lib :
>
> error LNK2001: unresolved external symbol __imp_scheme_get_mz_setjmp
>
> That is the only unresolved symbol. All the others were
() to set the
result of `(find-system-path 'exec-file)` so that runtime files can be
found in relative to the executable.
At Wed, 16 Sep 2015 07:52:11 -0600, Matthew Flatt wrote:
> After thinking about this more, it looks more promising to extend `raco
> ctool --cmods` so that it can do a
I've pushed a repair that's intended to fix this problem. The bug was
in internal handling of file descriptors in the case that poll() is
available and epoll() isn't.
In case it's useful, I also added `--enable-racket=auto` support`,
which automates the step of building a Racket executable for
/gc2/xform.rkt: [running
> body]
>
> make[4]: *** [xsrc/hash.c] Error 1
>
> make[3]: *** [all] Error 2
>
> make[2]: *** [3m] Error 2
>
> make[1]: *** [3m] Error 2
>
> make: *** [all] Error 2
>
>
> Any suggestions? Android 5.0 won’t run the executable Ma
/Users/johncarmack/racket-master/racket/src/racket/gc2/xform.rkt: [running
> body]
>
> make[4]: *** [xsrc/hash.c] Error 1
>
> make[3]: *** [all] Error 2
>
> make[2]: *** [3m] Error 2
>
> make[1]: *** [3m] Error 2
>
> make: *** [all] Error 2
>
>
> Any sugg
Can you say more about how you're running this program? I get `42` all
four times when running this program with `racket` or in DrRacket.
At Thu, 17 Sep 2015 00:08:00 -0400, Greg Hendershott wrote:
> I'm working on adding better submodule support in racket-mode, which
> entails using
gt;
> > World
> > }
> > Shouldn't produce
> > '(stuff "Hello " "\n" "\n" "World")
> > Instead of
> > '(stuff "Hello " "\n" "World")
> > ?
> > In other words, should the newline afte
if you can check that).
I can't guess offhand what the fix was, and I can't yet suggest a
workaround for v6.2. How much do you need a workaround?
At Thu, 17 Sep 2015 11:15:40 -0400, Greg Hendershott wrote:
> On Thu, Sep 17, 2015 at 10:21 AM, Matthew Flatt <mfl...@cs.utah.edu> wrote:
> &
Scribble can't be changed to match LaTeX without changing @-expression
reader at a fairly fundamental way, and I'm skeptical of the change.
Scribble's input is handled in three steps: @-expression parsing to
produce a syntax object (i.e., enriched S-expression), Racket expansion
and evaluation of
Be sure not to use the name "doc" for the document, but instead a name
that is connected to the package (because all documents are rendered to
the same place in installation scope). In other words, either make the
document source "somepackage.scrbl" or use "somepackage" as the
document name in the
At Thu, 17 Sep 2015 18:53:59 -0400, Neil Van Dyke wrote:
> Is it OK if I *exclude* the HTML rendering of the docs from the files
> included in the packaging altogether (which would give me the below
> files)?
That sounds right to me.
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Our experience is that building shared libraries on a machine with
GLibC 2.12 produces shared libraries that work most everywhere. In
other words, you should rebuild the shared libraries on that ancient
Linux installation, and then you're probably in good shape for the
foreseeable future.
At Thu,
At Wed, 16 Sep 2015 17:16:50 +0800, WarGrey Gyoudmon Ju wrote:
> foxpipe.c is a wrapper of libssh2 APIs that suitable to work with (sync)
> and custodian. Everything is okay except that the sigfault annoys me a lot.
>
> typedef struct foxpipe_session {
>
> LIBSSH2_SESSION *sshclient;
>
>
The most likely solution is to make the executable look enough like a
"PLT executable", but I'll have to try it out to pin down additions
that will work.
Are you interested in this only for Unix variants or for all platforms?
I think Windows will be more difficult.
At Wed, 16 Sep 2015 14:26:41
We left out "libracket3m.a" just to make the distribution smaller,
since it wasn't clear that anyone found it useful. The minimal Racket
distribution for x86_64 is about 30MB unpacked, and "libracket3m.a" is
5MB by itself. So, the library would be a significant addition for the
minimal
Unfortunately, `raco make` may go wrong if its own implementation is
not compiled.
You probably want `raco setup` or (equivalently) `racket -l setup`,
which should be fast if it's just a matter of updating file timestamps.
At Mon, 14 Sep 2015 20:20:39 -0500, Robby Findler wrote:
> If you run
Thanks for the help!
When the optimize converts
(let-values ([(X ...) (values M ...)])
)
to
(let ([X M] ...)
)
it incorrectly attaches a virtual timestamp to each "[X M]" binding
that corresponds to the timestamp after the whole `(values M ...)`.
So, the optimizer loses the
I've pushed a repair.
At Sun, 13 Sep 2015 07:44:40 -0600, Matthew Flatt wrote:
> Thanks for the help!
>
> When the optimize converts
>
> (let-values ([(X ...) (values M ...)])
>)
>
> to
>
> (let ([X M] ...)
>)
>
> it incorrectly att
At Thu, 10 Sep 2015 15:10:27 -0400, Anthony Carrico wrote:
> I did a 2 character change to Racket (see
> https://github.com/plt/racket/pull/1045), and hit make.
For that case, I would use `raco setup` instead of `make` (since it's
not a change to the runtime). Or I might use `make as-is`, which
:ref master)`
> to get the topmost commit hash... if I can store that locally*, I have an
> update check :-D, and the package system API does the rest.
>
> *With my current knowledge, I'd (ab)use preferences for doing that without
> writing around the system, but I'm open to better
An easier way is:
* Create a Git repo (e.g., at GitHub) for your handin client. It's a
good idea to name the repo something specific to your class, as
opposed to just "handin".
For example, the one for my class is
https://github.com/mflatt/uu-cs5510.git
* Optionally, register
At Thu, 3 Sep 2015 11:12:50 +0100, Tim Brown wrote:
> On 28/08/15 20:02, Matthew Flatt wrote:
> > I think the sandbox is relevant because `sandbox-memory-limit` remains
> > in effect (even though you're disabling the per-evaluation limit by
> > setting `sandbox-eval-limit
mail.com> wrote:
> > Thanks for the quick reply!
> >
> > On Wed, Sep 2, 2015 at 5:28 PM, Matthew Flatt <mfl...@cs.utah.edu> wrote:
> >> That looks like a bug in the scheduler to me. I don't think it's
> >> specific to `custodian-box`, but to `sync` a
That looks like a bug in the scheduler to me. I don't think it's
specific to `custodian-box`, but to `sync` and any event that is not
ultimately backed by a channel or semaphore. (For example, `alarm-evt`
also seems to trigger the problem.)
At Wed, 2 Sep 2015 16:20:56 -0400, Greg Hendershott
The first call is to detect sharing, and the second time is to actually
print.
For example, if you change `(constr 'y)` to
(define b (box #f))
(set-box! b (constr b))
b
then you'll see that the output starts with "#0=", because the first
pass detected that a "#0#" will be needed.
At Wed,
The problem is that the documentation-build process cannot support a
use (direct or indirect) of `racket/gui/base` at documentation-build
time. The
@(require teachpacks/racket-turtle)
in your ".scrbl" files is the main problem, since that indirectly loads
`racket/gui/base`.
It looks like you
The `make-base-namespace` function creates a new namespace, but it
attaches the `racket/base` instance of the current namespace to the new
one. The `error-print-width` parameter comes from `racket/base`, so
it's still the same parameter.
You can use `namespace-attach-module` to attach param.rkt
At Sun, 30 Aug 2015 08:19:22 -0400, David T. Pierson wrote:
On Mon, Aug 24, 2015 at 10:45:11AM -0700, Konstantin Weitz wrote:
I'm trying to receive messages from a place. Receiving the messages
with `place-channel-get` works fine, but using `sync` blocks
indefinitely. I want to use `sync`
I haven't been able to replicate the specific crash, but I have a guess
at the problem.
I think the sandbox is relevant because `sandbox-memory-limit` remains
in effect (even though you're disabling the per-evaluation limit by
setting `sandbox-eval-limits`). A sandbox memory limit triggers memory
of the space that is shared among all places
(which is relatively rare).
I've pushed a repair for that bug and for three problems with memory
accounting.
At Fri, 28 Aug 2015 13:02:12 -0600, Matthew Flatt wrote:
I haven't been able to replicate the specific crash, but I have a guess
at the problem.
I
I've pushed changes so that the set of module suffixes is extensible
through a `module-suffixes` definition in a collection's info.rkt.
Adding a new suffix affects compilation and testing in all collections.
(The suffixes .rkt, .scrbl, .ss, and .scm remain hard-wired
in the set.)
Module suffixes
At Fri, 21 Aug 2015 12:44:08 -0400, Benjamin Greenman wrote:
I'd like to change the result of a 0-arity function, but I need help
crafting the right magic spell. Here's my attempt -- this even possible?
#lang racket/base
(struct wrap (vals)) ;; Wrap a list
(define (create) '())
It looks like there's not a way currently, although I think it would
make sense to add one.
For file extensions generally, I think there should be an info.rkt
field to add extensions that are recognized by all tools that apply to
all collections. That's a larger project, but it's on my near-term
PM.png]
On Wed, Jun 17, 2015 at 7:13 PM Matthew Flatt mfl...@cs.utah.edu wrote:
At Wed, 17 Jun 2015 12:35:36 -0700 (PDT), Andrew Kent wrote:
On Wednesday, June 17, 2015 at 3:10:51 PM UTC-4, Alex Knauth wrote:
One data point:
I’m using DrRacket version 6.2.0.4--2015-06-08 with OS X
At Tue, 18 Aug 2015 10:40:14 -0400, George Neuner wrote:
On Mon, 17 Aug 2015 10:07:11 -0600, Matthew Flatt
mfl...@cs.utah.edu wrote:
The problem is in the clean-up of OS-level locks. A lock is allocated
using a combination of malloc() and pthread_mutex_init(), for example.
The clean up
At Mon, 17 Aug 2015 12:21:41 -0700 (PDT), Jack Firth wrote:
On Monday, August 17, 2015 at 9:07:15 AM UTC-7, Matthew Flatt wrote:
That's an especially basic mistake, and it slipped by because low-level
locks are rarely allocated in the run-time system. Place channels are
probably
mac w/ OS X
Yosemite w/ the 6.2 release as well (just to make sure I wasn't crazy or
causing the issue on my machine).[image: Screen Shot 2015-08-18 at 4.07.23
PM.png]
On Wed, Jun 17, 2015 at 7:13 PM Matthew Flatt mfl...@cs.utah.edu wrote:
At Wed, 17 Jun 2015 12:35:36 -0700 (PDT), Andrew
At Tue, 18 Aug 2015 17:45:28 +0200, Paul van der Walt wrote:
I have a bunch of typing judgements and metafunctions which i would now
like to typeset, but the ⟦⟧ characters are not showing up correctly. I
assume this is some kind of fonts problem? Mind you, at some point in
the past (some
The problem is in the clean-up of OS-level locks. A lock is allocated
using a combination of malloc() and pthread_mutex_init(), for example.
The clean up was usually missing the free() to go along with
pthread_mutex_destroy().
That's an especially basic mistake, and it slipped by because
I'm looking into this. I can confirm that the GC thinks there's no
leak, but the OS thinks there is.
Thanks for the example and info!
At Mon, 17 Aug 2015 16:09:00 +0100, Tim Brown wrote:
Sam,
I don’t see the leak with (display (current-memory-use)) -- sorry for
leaving it in the example,
At Sat, 15 Aug 2015 06:37:21 -0700 (PDT), Brian Adkins wrote:
The Raspberry Pi has a 4 core CPU, so it pains me to see it pegged at
only 25% this whole time. Is it possible to build Racket from Unix
Source in parallel to get all 4 cores fired up?
You can use
make install PLT_SETUP_OPTIONS=-j
Does `(current-subprocess-custodian-mode 'kill)` combined with Cmd-k
(for kill, instead of break) make the subprocess terminate?
If so, you could use `dynamic-wind` or catch `exn:break` exceptions,
possibly put the subprocess under its own custodian, and so on.
At Sun, 9 Aug 2015 15:17:19 +0200,
I fixed the minor issue, but I haven't been able to figure out how
`send-new-place-channel-to-named-dest` is meant to work, either. (I'll
try again to contact Kevin.)
At Thu, 6 Aug 2015 11:32:29 +0100, Tim Brown wrote:
On 06/08/15 11:29, Tim Brown wrote:
(define node (create-place-node
I think that's the only safe way to make a thread keep running outside
the custodian that will be killed.
If starting a program under another custodian is too much of a hassle,
you could access the root custodian via the FFI and create a thread
owned by it. See the implementation of
The problem here is the same as in
https://groups.google.com/d/msg/racket-users/H7vilh3KcD4/pGZif3F3dEkJ
I still haven't thought about it enough to fine better solution than
putting `require (only-in racket/base #%module-begin))` before the
submodule declaration.
At Thu, 30 Jul 2015 16:46:34
, anyway.
At Fri, 7 Aug 2015 22:36:32 -0500, Alexander D. Knauth wrote:
Oh, thanks!
That makes sense.
On the off chance that you have an idea, is there a good way of doing this
that doesn't require b being able to see c?
On Aug 7, 2015, at 10:23 PM, Matthew Flatt mfl...@cs.utah.edu wrote
At Sat, 08 Aug 2015 16:19:23 +0100, Paulo Matos wrote:
Where can I find the code for :
http://docs.racket-lang.org/search/index.html
It's in scribblings/main/private in the racket-index package:
https://github.com/plt/racket/tree/master/pkgs/racket-index/scribblings/main/private
--
You
Are you seeing conflicts with different installations that have the
same version number? Or different snapshot installations?
Two settings can help keep installations separate:
* Configure packages for installtion scope instead of user scope
by default.
You can check the current default
Also, which version of Racket are you using? With v6.1.1 and
`in-range`, I get
cpu time: 745 real time: 744 gc time: 0
cpu time: 205 real time: 205 gc time: 0
cpu time: 782 real time: 782 gc time: 0
cpu time: 205 real time: 206 gc time: 0
but with v6.2 and `in-range`, I get
cpu time: 209
I think you want to use `in-range`. On my machine, adding `in-range`
makes each loop run 20 times faster --- which means that the original
loops are just testing the performance of the generic sequence case of
`for`.
(Probably we should make `for` recognize and specialize literal
integers, and I
At Fri, 31 Jul 2015 15:03:53 +0100, Laurent wrote:
I don't really understand why `in-range` makes such a difference. It looks
like the kind of sequence iterator is tested at each step, whereas I was
expecting it to be tested only at the beginning of the loop, since this
sequence iterator kind
We're preparing a v6.2.1 release, which will go out before August 10.
The v6.2.1 build will be a small set of patches to v6.2, i.e., not
derived from the current development branch.
The patches are for the HtDP teaching languages. The main patch for
v6.2.1 is to add an option to restore the old
At Wed, 29 Jul 2015 06:28:48 -0700 (PDT), Klaus Ostermann wrote:
I'd like to have a macro let-cbn which does this:
(let-cbn ((x1 e1) ...) body)
is transformed to
(let ((x1 (thunk e1)) ...) newbody)
where newbody is the result of replacing every occurence of x1... by (x1)... .
What
At Wed, 29 Jul 2015 07:00:54 -0700 (PDT), Klaus Ostermann wrote:
Units are not allowed to export macros, presumably because the unit wiring
takes place after the macro expansion.
I have a unit and would like to define a few macros based on the interface of
that unit.
Right now I
I've updated `racket/draw` to restore support for writing BMP files.
At Sun, 26 Jul 2015 11:55:51 -0400, 'John Clements' via Racket Users wrote:
On Jul 23, 2015, at 2:47 AM, copycat kangren.c...@gmail.com wrote:
Yes, i can and will try with the old imagemagick bindings.
On Thursday,
At Sun, 26 Jul 2015 22:42:48 -0700 (PDT), Слава ПолноеИмя wrote:
Sorry, list, for dumb unprofessional question, but I'm not even amateur
programmer)
How can I convert string and floats to bytes, that can be passed to udp-send?
Tried real-floating-point-bytes and string-bytes/utf-8 but it
At Mon, 27 Jul 2015 19:32:32 +, John Carmack wrote:
Is it possible to continue execution after a ^b user break in DrRacket (not
debugging)? It would often be useful to be able to ^b, print some global
state, set some flags, and continue running.
The `exn:break` exception record includes
Yes, this is a limitation of `raco pkg` that is on my list to repair.
It happens when a file is removed from a linked package, such as the
packages in pkgs, and only when the corresponding .zo file is not
yet deleted. It's not an actual conflict, because `raco setup` will
soon remove the .zo
At Sat, 25 Jul 2015 19:58:05 +, John Carmack wrote:
Anyone got one handy? Lazily attempting to avoid the day of frustration that
usually comes from touching anyone else's NDK project...
Untested, but possibly useful:
At Thu, 23 Jul 2015 19:57:52 -0700 (PDT), copycat wrote:
On Thursday, July 23, 2015 at 2:50:37 PM UTC+8, copycat wrote:
With a list box, i can select multiple items by holding onto my mouse and
dragging. I'll like to add on other features to the list box like being able
to drag the rows to
At Thu, 23 Jul 2015 15:07:53 -0700, Jordan Johnson wrote:
What are the appropriate function and the preferred practice for referring to
struct fields in a Scribble document? For example, if I’m writing the
defstruct* body text and want to say, “the x field is intended for blah blah
blah”,
The documentation's intent is to describe about syntax objects that
represent an expanded expression. When you write
(define stx #'(let ([x 5]) (+ x 6)))
then the syntax object `stx` doesn't represent an expansion. Instead,
it's a pile symbols and pairs, all with the same lexical context (taken
At Wed, 22 Jul 2015 18:41:14 +0200, mazert wrote:
Le 14/07/2015 18:12, Matthew Flatt a écrit :
If you're trying to move the text from one editor to another, then
it's probably easiest to use the `copy` and `paste` methods.
No, I try to convert it into html format. But first i need to get
:
That fixed the example I gave, but now this fails:
(let ()
(def)
(let ()
(use)))
On Mon, Jul 20, 2015 at 2:50 PM Matthew Flatt mfl...@cs.utah.edu wrote:
Repair pushed.
On Jul 20, 2015, at 11:14 AM, Matthew Flatt mfl...@cs.utah.edu wrote:
Thanks for the info. I think
That was a bug in the revised implementation of `define-generics` for
the new expander. I've pushed a repair.
At Sun, 19 Jul 2015 22:34:36 -0400, Alexander D. Knauth wrote:
This is a simplified example of something that worked in racket version
6.2.0.4 from 2015-06-08, but is now broken in
Repair pushed.
On Jul 20, 2015, at 11:14 AM, Matthew Flatt mfl...@cs.utah.edu wrote:
Thanks for the info. I think it's a bug in the expander, and I have a
repair, but I think that repair might point to another bug that I'm
still investigating.
At Mon, 20 Jul 2015 12:56:49 -0400
Thanks for the info. I think it's a bug in the expander, and I have a
repair, but I think that repair might point to another bug that I'm
still investigating.
At Mon, 20 Jul 2015 12:56:49 -0400, Alexander D. Knauth wrote:
I don't really know what's going on, but this might help:
;; It seems
At Fri, 17 Jul 2015 16:58:50 +0200, mazert wrote:
Le 17/07/2015 16:16, Matthias Felleisen a écrit :
This actually works. But I am not sure why you'd want to do something like
that.
Ah yes, letrec is what I was looking for :) . The goal was to test a
port with a specific timeout (here I
At Fri, 17 Jul 2015 15:16:34 +0800, Mianlai Zhou wrote:
I have the following code:
#lang racket
(require slideshow racket/class racket/gui/base)
(define my-frame (new frame% [label My chess]
[width 300] [height 391]
At Wed, 15 Jul 2015 22:48:26 -0300, Gustavo Massaccesi wrote:
But perhaps the problem is in the code that tracks the single_use
value. After 'dup' is applied, 'rep' is not long a singled used
function.
Yes, I think that's the problem. I thunk I have a repair to update
single-use tracking
At Mon, 13 Jul 2015 17:58:36 +0200, mazert wrote:
I have a text% inside an editor-canvas% object, and I write some text
then I apply to it a blue color for example.
When i want to get the text with get-text method, i only get the text
without formatings. Is there a way to get the text with
At Thu, 9 Jul 2015 10:08:53 -0700 (PDT), Scott Bell wrote:
On Thursday, July 9, 2015 at 12:27:26 AM UTC-7, Matthew Flatt wrote:
At Wed, 8 Jul 2015 18:23:32 -0700 (PDT), Scott Bell wrote:
On Wednesday, July 8, 2015 at 4:05:20 PM UTC-7, Scott Bell wrote:
On Wednesday, July 8, 2015 at 3:48
At Wed, 8 Jul 2015 18:23:32 -0700 (PDT), Scott Bell wrote:
On Wednesday, July 8, 2015 at 4:05:20 PM UTC-7, Scott Bell wrote:
On Wednesday, July 8, 2015 at 3:48:22 PM UTC-7, neil wrote:
Does adding the executable pathname to the `gdb` command line (i.e.,
format `gdb EXECUTABLE-FILE
Sorry --- I lost track of this one.
The problem here is subtle: `scribble/lp` defines `#%module-begin`, and
a `module+` (or `module* test #f`) form picks up that `#%module-begin`
for the submodule body, where it isn't wanted and doesn't work.
The variant
#lang scribble/lp
@(chunk
*
Running `raco setup` should have worked. Can you describe the steps
that you tried in more detail (i.e., enough for me to try the same
thing and see the result)?
At Tue, 7 Jul 2015 20:31:16 -0300, Gustavo Massaccesi wrote:
I'm trying a few changes in a .scrbl file of one package and I want to
At Mon, 06 Jul 2015 23:24:20 -0400, Ryan Culpepper wrote:
On 07/06/2015 10:04 PM, Anthony Carrico wrote:
I've been working through Macros that Work Together (on my way to
working through Sets-of-Scopes). I've come across something that is
slightly unclear to me in the section on
At Sat, 04 Jul 2015 17:55:29 -0400, Neil Van Dyke wrote:
Neil Toronto wrote on 07/04/2015 05:29 PM:
I don't know, but I want most of these things. I assume this is
related to your earlier question about games? :)
Partly. :) I've also been dealing with GC for years in non-game HTTP
I have no plans myself, but I think many applications would benefit
from incremental collection. I also think that implementing an
incremental GC for Racket is within reach --- as much as for any
runtime system.
That is, unlike so many other things in our infrastructure, the GC is
not so tangled
Would using select() instead of poll() avoid the problem? You could try
a Racket build that uses select() by changing mzconfig.h as generated
by `configure` to not define `HAVE_POLL_SYSCALL`.
The `configure` script's check for poll() could be disabled easily on
Solaris if using poll() is a bad
.:
; = add matching binding.:
; matching binding.: in: add1
I found this because of this Travis CI build failure:
https://travis-ci.org/AlexKnauth/infix-macro/jobs/68245124#L164
On Jun 25, 2015, at 12:31 AM, Matthew Flatt mfl...@cs.utah.edu wrote:
Yes, I overlooked `splicing-local`, and I'll
You're right that there's not a form that's like `except-out` but
constrained both by name and phase. There's also not an export variant
of `only-meta-in`, which would get your half-way there. You could
implement a new provide expander to do that.
Otherwise, in addition to the strategy that you
I rely on it in this macro here:
https://github.com/AlexKnauth/my-object/blob/master/my-object/stuff.rkt#L25
And Travis CI was giving me this error:
https://travis-ci.org/AlexKnauth/my-object/jobs/68248192#L209
On Jun 22, 2015, at 8:25 AM, Matthew Flatt mfl...@cs.utah.edu wrote:
At Thu
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On Mon, Jun 22, 2015 at 11:39 PM, Matthew Flatt mfl...@cs.utah.edu wrote:
Probably you don't want to work with namespaces, which are intended more
for run-time reflection.
For an example of turning internal definitions
The docs here might help elaborate on Matthias's answer:
http://docs.racket-lang.org/gui/canvas___.html
I'll try adding more links to that information, including from the
`get-dc` method. Maybe it also would be better as its own section in
the overview chapter.
At Mon, 22 Jun 2015 18:07:04
Probably you don't want to work with namespaces, which are intended more for
run-time reflection.
For an example of turning internal definitions into 'letrec-syntaxes+values',
try the implementation of 'racket/block'.
On Jun 23, 2015, at 10:06 AM, Thomas Dickerson thomas_dicker...@brown.edu
At Thu, 21 May 2015 07:15:14 -0600, Matthew Flatt wrote:
Otherwise, be prepared for me to come back in a few
weeks and lobby for moving to a new macro expander.
Here's the proposal: let's switch on July 16. Switch means that I'd
merge the new macro expander to the master branch
The enclosed big-crunch.rkt library provides a `big-bang/big-crunch`
form that is the same as `big-bang`, but it closes the window with
`stop-when` produces #t. (I wrote it for my son.)
;; isl+
(require 2htdp/image)
(require 2htdp/universe)
(require big-crunch.rkt)
(big-bang/big-crunch 10
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