On Apr 28, 2014 12:16 AM, Neil Toronto neil.toro...@gmail.com wrote:
For anyone wondering what this stuff means: most mixed exact/inexact math
in Racket should be up to 5x or so faster now, depending on how
conversion-heavy it is and how large the numbers are. On my machine,
`real-double-flonum`
So far we have had two threads of reactions to my 'comments on
comments.' They have produced requests that I consider actionable
items though I have counter-proposal to some of them. The list
below does not include other actionable items I had on my list
that did not get comments.
With
On Monday, April 28, 2014, Matthias Felleisen matth...@ccs.neu.edu wrote:
So far we have had two threads of reactions to my 'comments on
comments.' They have produced requests that I consider actionable
items though I have counter-proposal to some of them. The list
below does not include
On Mon, Apr 28, 2014 at 3:47 PM, Matthias Felleisen matth...@ccs.neu.eduwrote:
o Are you a student learning to program?
o Are you an experienced programmer learning to use Racket?
(why /learning/ to use Racket? I could well be that s/he's on a new
machine)
Why not simply Choose a language
On Mon, Apr 28, 2014 at 9:47 AM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
* SAM suggests to always start in #lang racket. Tell students to
switch to #lang htdp/bsl or use Choose Language. I think this is
plain unfriendly to our largest audience. Here is my
counter-proposal:
when
On Apr 28, 2014, at 9:51 AM, Robby Findler ro...@eecs.northwestern.edu wrote:
So you are asking to go back to the way it was before we added the not a
language language?
I don't think we asked simple questions like that. We popped up the dialogue
itself, no?
_
2014-04-28 16:12 GMT+02:00 Matthias Felleisen matth...@ccs.neu.edu:
SAM:
Also, I think that in almost every course using DrRacket, the students
will need to learn how to choose languages, because they will switch
from one teaching language to the next. So I think this won't be
unfriendly.
From time to time the topic of refactoring pop up on the mailing list.
Here is one feature I'd like:
After renaming an exported identifier in a module foo,
any references to the identifier in external modules need
to be renamed too. DrRacket could after renaming in foo is done,
ask
On Mon, Apr 28, 2014 at 9:47 AM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
when drracket starts w/o a preference file, we pop up a radio menu:
o Are you a student learning to program?
o Are you an experienced programmer learning to use Racket?
Depending on which bullet the person
On Apr 28, 2014, at 10:40 AM, Sam Tobin-Hochstadt sa...@cs.indiana.edu wrote:
Another problem with this approach is that BSL is not the right choice
for many people in the first category. They might be starting using
DMDA, or Picturing Programs, or working on their own with SICP.
I don’t
Yes, there are many cases to cover. The important problem to solve is what is
the right default? What is appropriate 95% of the time? I don't have that data.
You could have different distributions also, with the appropriate default. Tell
students to get the picturing programs drracket or the
I withdraw my support for this item.
_
Racket Developers list:
http://lists.racket-lang.org/dev
You could have different distributions also, with the appropriate default.
Tell students to get the picturing programs drracket or the Pyret
drracket, etc etc.
This seems like the way to go. There won't be one optimal solution for
Racket's wide spectrum of users.
There wouldn't even need to
I guess this would work best if DrRacket were given a package (and it
could infer the current package from the location of the file being
edited).
So if someone wants to implement a function that, given a package spec
and a renaming and then does the work, I'd be happy to try to
integrate it into
They could even be different variations of DrRacket...
drpyret.rkt:
#lang drracket/template
#lang pyret
and bam! New DrRacket binary.
On Mon, Apr 28, 2014 at 8:59 AM, Stephen Chang stch...@ccs.neu.edu wrote:
You could have different distributions also, with the appropriate default.
Tell
This is one of those places where our desire to not include
extra-linguistic mechanisms conflicts with our desire to
support our programmers. I have had this idea many times,
as I am sure have many others and Jens probably had it tons
of times over the years.
Even a package isn't enough
But giving drracket a list of packages is probably a very useful
special case and the rename in the package I'm in is even yet more
useful special case, especially when the file is a private module.
Robby
On Mon, Apr 28, 2014 at 10:20 AM, Matthias Felleisen
matth...@ccs.neu.edu wrote:
This is
Of course, the big problem with different versions is that the error
message may be even worse because it won't say Go choose the Racket
language, since the teaching distribution may not even have that
included.
On Mon, Apr 28, 2014 at 9:04 AM, Jay McCarthy jay.mccar...@gmail.com wrote:
They
On 04/28/2014 10:08 AM, Laurent wrote:
On Mon, Apr 28, 2014 at 3:47 PM, Matthias Felleisen
matth...@ccs.neu.edu mailto:matth...@ccs.neu.edu wrote:
[...]
Why not something like `apply-list` or `apply/list`?
(personally I usually call it `cvl` for call/values-list, but that's
because I often use
Time to move it to a place easy to find? But why a macro?
On Apr 28, 2014, at 1:10 PM, Ryan Culpepper ry...@ccs.neu.edu wrote:
On 04/28/2014 10:08 AM, Laurent wrote:
On Mon, Apr 28, 2014 at 3:47 PM, Matthias Felleisen
matth...@ccs.neu.edu mailto:matth...@ccs.neu.edu wrote:
[...]
Why
On 04/28/14 01:03, Matthew Flatt wrote:
At Mon, 28 Apr 2014 00:58:48 +0200, Juan Francisco Cantero Hurtado wrote:
I'm trying to compile Racket 6.0 on OpenBSD/hppa but the compilation
fails because there is not support for CAS on OpenBSD/hppa. Is it
possible compile racket on platforms without
I think `--enable-pthread` is triggering the attempt to use CAS. Can
you leave that one out?
At Mon, 28 Apr 2014 19:59:10 +0200, Juan Francisco Cantero Hurtado wrote:
On 04/28/14 01:03, Matthew Flatt wrote:
At Mon, 28 Apr 2014 00:58:48 +0200, Juan Francisco Cantero Hurtado wrote:
I'm trying
(values-list (values 1 2 3)) = (list 1 2 3)
It can't be a function; a function-argument continuation only accepts a
single value.
As to why prefer a macro instead of a function like 'call/values-list',
I think 'values-list' represents a smaller, more coherent bit of
behavior. You can
On 04/28/14 20:08, Matthew Flatt wrote:
I think `--enable-pthread` is triggering the attempt to use CAS. Can
you leave that one out?
I tried without enable-pthread. I see the same problem
http://juanfra.info/bl/racket-2014/racket-6.0-2.log
At Mon, 28 Apr 2014 19:59:10 +0200, Juan
From: Laurent laurent.ors...@gmail.com
Subject: Re: [racket-dev] comments on comments on learning Racket
Date: April 27, 2014 at 2:39:50 AM MST
To: Matthias Felleisen matth...@ccs.neu.edu
Cc: dev@racket-lang.org Devs dev@racket-lang.org
On Sun, Apr 27, 2014 at 1:09 AM, Matthias
On 04/28/2014 04:46 AM, Sam Tobin-Hochstadt wrote:
On Apr 28, 2014 12:16 AM, Neil Toronto neil.toro...@gmail.com
mailto:neil.toro...@gmail.com wrote:
For anyone wondering what this stuff means: most mixed exact/inexact
math in Racket should be up to 5x or so faster now, depending on how
Motivated by some recent email threads, I decided to better understand
how Racket namespaces work by re-reading some docs but I got confused.
Paraphrasing the examples from this part of the guide:
http://docs.racket-lang.org/guide/mk-namespace.html
the following example fails because the module
Extra bit of information, this works too:
#lang racket
(define ns (make-empty-namespace))
(namespace-attach-module (current-namespace) ''#%builtin ns)
(parameterize ([current-namespace ns])
(namespace-require m.rkt))
But replacing ''#%builtin with ''#%kernel or ''#%boot
If you start with an empty namespace, then the handful of primitive
modules needed to bootstrap `racket/base` are not there. Attaching
`racket/base` doesn't make m.rkt available, but it makes it possible
to load m.rkt, after which m.rkt will be declared in the namespace.
It's not a matter of
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