the bytecode
bytecode interpreter == vm
hence ocaml has a vm
On Tue, May 11, 2010 at 6:39 PM, Peng Zang peng.z...@gmail.com wrote:
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On Tuesday 11 May 2010 07:22:56 am ben kuin wrote:
I think this 3 point are REASONABLE but the combination of those 3
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On Thursday 06 May 2010 06:43:21 am Dmitry Bely wrote:
Ironically it's also not entirely true. F# works well under Mono/Unix.
- Dmitry Bely
A little off topic, but how is Mono/Unix these days? Last I checked (2 years
ago) it implemented the
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The best way to compile and install OCaml (in my opinion) is via GODI. The
GODI installation instructions are clear and allow you to specify where the
install should go. Once installed, it's also easy to get all the other
libraries you might want
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Not that I know of. But you can use this general implementation. It assumes
you have Enum (from Batteries, and ExtLib before). The (~~) prefix operator
is Obj.magic.
Peng
(* makes the cross product of the given array of enumerations *)
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Has anyone pushed this patch upstream to the camomile author(s)?
It seems like a good change that should be made in the original sources to
make it more portable...
Peng
On Friday 12 June 2009 09:08:47 am Tiphaine Turpin wrote:
The following
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On Monday 01 June 2009 10:21:36 am David Allsopp wrote:
Dario Teixeira wrote:
Thanks -- that is also an interesting solution. I'm guessing it will
be faster, though it might consume more memory in cases where only one
field is actually used.
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I think this is because UI.t is abstract and is in fact, never created. You
need to tell the old caml that UI.t is actuall an int VI.t. Then it should
work.
module Make_P (VI : VB)
(UI : U with type t = int VI.t)
(RI :
the feedback.
Peng Zang wrote:
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I think this is because UI.t is abstract and is in fact, never created.
You need to tell the old caml that UI.t is actuall an int VI.t. Then it
should work.
True. However in the real case I am not dealing
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On Tuesday 07 April 2009 03:41:32 am David MENTRE wrote:
Hello,
On Tue, Apr 7, 2009 at 07:48, Goswin von Brederlow goswin-...@web.de
wrote:
In the last 2 weeks I've been playing around with lots of different
ways to do the same thing to get a
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Hi,
Here's an example of how constraints are specified for polymorphic methods.
In this example I define a list type which can compare to anything that is
foldable.
class type ['a] foldable = object
method foldl : 'z. ('z - 'a - 'z) - 'z -
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Perhaps you mean this?
class type foo = object('self)
method get_parent : 'self
end
class type foo2 = object('self)
constraint foo2 = #foo
method baz : float
method get_parent : 'self
end
The error you get is because the
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Are you using OCaml 3.10? I recall there's a bug that doesn't let you #use
more than once due to bad file descriptors. It's been fixed in 3.11
Peng
On Thursday 26 March 2009 09:59:20 pm Andre Nathan wrote:
Hello
I have the simple program
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Hi, camlp4 seems to break parsing of object duplication on 3.11. Can anyone
replicate this problem? Is this an known issue? A quick google search did
not reveal anything..
Peng
Objective Caml version 3.11.0
# #use topfind;;
) - arr.(3) + d;
copy
method print = Format.printf %d %d a b
end
But my brain is fried and I can't think of a nicer way..
Peng
On Wednesday 25 March 2009 04:15:38 pm Peng Zang wrote:
Thanks, do you know of a good work around?
Peng
On Wednesday 25 March 2009 04:01:24 pm Andres Varon
thoughts to
the list. (I would name it OCamlDev.el, but SOLID sounds better.)
On Fri, Mar 6, 2009 at 9:58 PM, Peng Zang peng.z...@gmail.com wrote:
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It's available as an extension to the toplevel. See enhtop:
http://caml.inria.fr/cgi-bin
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You're looking for a polymorphic method:
class a = object
method f : 'a. ([] as 'a) - unit = fun _ - ()
end
Peng
On Friday 06 March 2009 10:57:43 am Samuel Mimram wrote:
Hi,
When I try to compile the following code:
class a =
object
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On Wednesday 04 March 2009 01:11:18 am Brian Hurt wrote:
This is another large factor. The three reasons functors aren't used very
much are because:
1) They're a big, scary name,
2) They're slightly less efficient,
3) There are no good tutorials
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On Wednesday 04 March 2009 11:14:50 am Brian Hurt wrote:
Yeah. I think of this as one of the advantages of Functors.
Here are two real problems I've hit with type classes, in only a few weeks
banging around in Haskell.
For example, you can't
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Shouldn't ocamldep be able to solve this? It can read a source file and
figure out the dependencies. So you could in theory generate a fake source
file that is just open A and it should figure out the set of dependencies
for module A.
Peng
On
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I have often found -inline 10 to be faster than -inline 100. But YMMV,
Peng
On Saturday 01 November 2008 10:52:49 pm Michał C wrote:
Hi!
I'm working on a physical based ray(path) tracer and the performance
is one of my top priorities (just
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On Tuesday 21 October 2008 03:31:26 pm Till Varoquaux wrote:
There is a mix of Emacs,vim,texmate and other esoteric editors being
used here. We are all free to choose what we use but I think a lot of
us decide to cope with a steeper learning curve
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I have written smart autocompletion based on the toplevel in a mode I call
SOLID.
http://www.cc.gatech.edu/~pengzang/tools.html
I've never gotten around to announcing it because it takes time to polish up
and write good doc... time that I
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On Monday 20 October 2008 07:02:46 pm Robert Morelli wrote:
Because of its poor design, I lost the heart to try to program complex
tasks in Emacs lisp quite
a while ago, so I don't have everything fresh in my mind. Perhaps Peng
Zang who posted
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On Tuesday 16 September 2008 05:58:17 pm Hezekiah M. Carty wrote:
I/O error: Bad file descriptor
when I try to '#use somefile' several times (when camlp4 is turned on).
Yes, this is an unfortunate error which came along with the new camlp4
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On Wednesday 03 September 2008 02:31:10 am Alain Frisch wrote:
Peng Zang wrote:
For objects, we require that all objects
implement an equal method that satisfies the semantic contract.
How do you ensure that the method is indeed implemented
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On Tuesday 02 September 2008 03:03:28 pm Chris Clearwater wrote:
Is it possible to create an object by extending another object?
I'd like to do something like this:
...
object
open (an_object:class_type)
...
end
...
The short answer is
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I recently came across a post on Janest lamenting the perils of polymorphic
compare.
http://ocaml.janestcapital.com/?q=comment/reply/33
They make a great point, and I thought of a solution that has worked well for
me in the past few months that
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On Friday 22 August 2008 10:57:53 pm Jacques Garrigue wrote:
There is no way to specify a 'z version of 'self, and this is the
reason you cannot do this in ocaml.
Even if you don't require structural polymorphism for your object type
(which you
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Hi,
I have been using the Object system in OCaml for the equivalent functionality
of haskell typeclasses for some time. It allows nice things like:
class type ['a] foldable = object
method fold : 'z. ('z - 'a - 'z) - 'z - 'z
end
let
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On Thursday 14 August 2008 10:46:41 am Jim Farrand wrote:
Things like the (=) operator in OCaml vex me. One of the big
advantages of static typing and type inference is that stupid
programmer errors are prevented at compile time. However, the (=)
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On Thursday 14 August 2008 12:04:23 pm Jim Farrand wrote:
This doesn't answer my question at all. :)
Is there any theoretical reason they couldn't added? The kind of
answer I'm looking for is There is no theoretical reason why not, or
This is
(Hashtbl.enum hashtbl)
val get_one : ('a, 'b) Hashtbl.t - ('a * 'b) option
Ah, thanks.
On Aug 5, 2008, at 6:21 AM, Peng Zang wrote:
I think this is pretty standard. At least, I see it in ExtLib and I do
it on
a regular basis. In fact I have a function to do this for me so I don't
have
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What do you mean by dynamically load?
You cannot mix native and bytecode generally speaking.
I don't know of any speed comparisons of OCaml bytecode. You can always
compile to native code, which is faster, so I don't understand why you would
want
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I think this is pretty standard. At least, I see it in ExtLib and I do it on
a regular basis. In fact I have a function to do this for me so I don't have
to do it over and over again. Eg.
let get_one ht = mkGetOne Hashtbl.iter ht
Peng
On
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You don't pass arguments like you do in C or Java. In those languages you
might do:
somefunction(arg1, arg2, arg3)
In OCaml, you do:
somefunction arg1 arg2 arg3
In OCaml, (arg1, arg2, arg3) means create a 3-tuple. somefunction(arg1,
arg2,
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On Tuesday 05 August 2008 08:11:40 am Richard Jones wrote:
On Sun, Aug 03, 2008 at 08:46:32PM -0400, Ben Aurel wrote:
print_int fac(6);;
Read this: http://www.ocaml-tutorial.org/the_basics
Rich.
Second that. You really should take a look at
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On Friday 25 July 2008 04:14:22 pm Matthew William Cox wrote:
On Thu, Jul 24, 2008 at 09:40:36PM -0400, Peng Zang wrote:
Yeah, that always seemed broken to me. If two things are physically
equal (they occupy the same memory space) it doesn't
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On Thursday 10 July 2008 10:00:02 am Jon Harrop wrote:
Today's biggest shared-memory supercomputers already have thousands of
cores.
Also, this is a CNET article.. not exactly known for being in depth or
well researched and this article is no
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On Thursday 29 May 2008 04:13:20 am Christophe Raffalli wrote:
Via Custom block (section 18.9.1 of the manual), you could create a functor
with the following shape (I did not check my syntax):
module type Quotient =
type t
type qt
val
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