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<travisbrady>
How does one wrap a type? in this case Unix.file_descr? I'd like to do "type example = Unix.file_descr" which works, but then I can't figure out how to construct these
<jeff_s_>
use the same functions you would if you were making a Unix.file_descr
<jeff_s_>
unless you hide the right side of the = ocaml knows they're the same
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<mrvn>
In this case the only way is to ask Unix to create one. If you want your own "constructor" you need to wrap one of the Unix functions that return one.
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<yziquel>
flux: do you recall the scheduler code?
<Yoric[DT]>
hi
<Alpounet>
hi Yoric[DT]
<julm>
_o/
* Yoric[DT]
's wife now has her PhD.
<Alpounet>
yay !
<julm>
computer science?
<Alpounet>
cheers
<Yoric[DT]>
Nope, literature.
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<flux>
yziquel, yes
<yziquel>
flux: I had some trouble, fixed now. Sorry troubling you for nothing...
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<flux>
yziquel, got the scheduler working?
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<yziquel>
flux: yes. I just forgot to read the caracter I send on the pipe... fixed.
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<flux>
yziquel, I guess you're not closing the pipe then immediately then, as that serves as a signal too?
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<yziquel>
flux: no. I'm not closing the pipe.
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<babalu>
hi, how can i test the existence of a webpage in ocaml ?
<flux>
babalu, I would most likely use the curl bindings for ocaml
<flux>
babalu, you would issue a header request for the page, which would return a code indicating its existence
<babalu>
thanks
<babalu>
so now i know that 'curl' exists i'll maybe just use command line
<flux>
:)
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<babalu>
thanks
<thelema>
Yoric[DT]: congrats for your wife (and you, for helping)
<Yoric[DT]>
:)
<thelema>
btw, I'll be starting a PhD program at michigan state university ASAP
<thelema>
s/starting/entering/
<Yoric[DT]>
Great :)
<Yoric[DT]>
On what topic?
<thelema>
CS in general, the prof I'll be working under is working on TCAM rule optimization
<babalu>
flux: i didn't know the server actually displayed a page even though the url is bad : so i'll just have to find 'Une erreur est survénue' in the content :D
<palomer>
the first memory ever developed was ternary, if I remember correctly
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<shazam>
\o/
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<julm>
what's happening shazam?
<hcarty>
Is anyone here using the Cairo bindings not from distro packages (ie. with GODI)?
<hcarty>
I'm having trouble getting native code linking to work. It seems to be fine for Fedora, Debian, etc packages.
<hcarty>
But my from-source build does not link properly with native code, leading to lots of missing caml_* symbols
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<julm>
hcarty: perhaps that you're using a different META file?
<Camarade_Tux>
hcarty, have you checked if debian/fedora have patches against ocaml-cairo ?
<hcarty>
julm, Camarade_Tux: I'm using the Fedora META file and build steps (as far as I can tell)
<hcarty>
The only patch they seem to use is providing the META file
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<hcarty>
I've run in to this before with C bindings + native code, and I don't remember what the work-around is.
<Camarade_Tux>
I'd like to help but I'm simply too tired, only slept two hours last night =/
<Camarade_Tux>
if you still have this problem on tomorrow, let me know
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<hcarty>
Camarade_Tux: Thanks! Sleep well tonight.
<julm>
hcarty: what exactly are the missing caml_* ?
<Camarade_Tux>
hcarty, I've also had troubles with C bindings and native code while bytecode was working perfectly fine but I can't remember what the problem was
<hcarty>
julm: program, globals, data_segments
<hcarty>
Camarade_Tux: If I recall correctly, a .cma stores some linking information a .cmxa does not
<Camarade_Tux>
hcarty, I think I had that problem for ocaml-gir, I hope I can find what I did
<julm>
hcarty: .cmxa can store some linking information, you can print them with ocamlobjinfo as for .cma
<hcarty>
julm: Oh, cool. Thank you.
<hcarty>
julm: Where do I get ocamlobjinfo? It sounds very familiar.
<julm>
it's part of the ocaml/tools
<Camarade_Tux>
hcarty, actually I think I had troubles getting both bytecode and nativecode to work without a make clean between them : http://paste.lisp.org/display/82083
<Camarade_Tux>
because a file had the same name for both (that problem has been mentionned very recently on the ocaml mailing-list iirc)
<julm>
hcarty: ocaml/tools/objinfo.ml
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<hcarty>
julm: Ah, thanks. Found it and compiled it.
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<hcarty>
julm: "objinfo cairo.cmxa" errors out saying that it's not an object file
<julm>
hcarty: that said I do not remember if the official version of objinfo.ml handles .cmxa; I am currently using my old patch there: http://caml.inria.fr/mantis/view.php?id=4276
<julm>
hcarty: you can also open the .cmxa with your text editor, it appears in clear
<julm>
at the end
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<hcarty>
julm: Looking at the files directly, they seem to have the same linking information listed
<hcarty>
I'll have to dig through this some more
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<julm>
hcarty: could you pastebin the complete trace of the build?
<Camarade_Tux>
night :)
<julm>
bn Camarade_Tux \o_
<hcarty>
Camarade_Tux: Goodnight
<Camarade_Tux>
:)
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<hcarty>
julm: That is a build of one of the demos which come with the OCaml Cairo bindings. It builds, links and runs cleanly from the build directory.
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<julm>
hcarty: but it fails in an other directory?
<hcarty>
julm: Yes
<julm>
ok
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<julm>
hcarty: have you looked for the missing symbols in the file(s) of the build directory with objdump?
<hcarty>
julm: No, but I have not compiled your version yet (it complains about a missing module - I don't remember which - when I replace the existing one with yours)
<julm>
not objinfo, objdump
<hcarty>
julm: Oh, sorry
<julm>
no problem :)
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<hcarty>
It's there in the build directory
<julm>
in a lib*.a ?
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<hcarty>
julm: Yes
<julm>
where goes this lib*.a when it is installed
<julm>
?
<hcarty>
julm: I need to check that - it may not be!
<hcarty>
Which would explain a lot :-)
<julm>
normally, the lib<name>.a should go at `ocamlc -where`/<name>/lib<name>.a, the .cma should include a linking option -l<name>, and ocamlfind should pass a -I +<name> to ocaml{c,opt}
<hcarty>
julm: Thank you so much!
<julm>
you fixed it?
<hcarty>
I'm not sure what I missed in the installation process, but there were two .a's not installed
<hcarty>
s/what I missed/how I missed them/
<julm>
oki douki :)
<hcarty>
julm: Yes, it seems to be fixed now
<hcarty>
julm++
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<julm>
shazam: wow I've just finished to watch the demo, it has become much more impressive now :)
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<shazam>
julm, check out the manual!
<julm>
the "Prettier XML", that I like :)
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<shazam>
:)
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<shazam>
you can easily specify the complete XML grammar in OSET
<julm>
do you intend to do it?
<julm>
could that grammar be easily changed "dynamicaly" : I mean be different whether the user enters version="1.0" or version="1.1"?
<julm>
dynamically*
<shazam>
actually...yes
<shazam>
the simplest (but most verbose) way to do it is to code it into the grammar
<shazam>
but, I guess that's not what you were thinking of
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<shazam>
I don't personally intend to encode XML into OSET (but I'm willing to help anyone who wants to do it!)
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<julm>
well you know the grammar changed between XML 1.0 and 1.1, several BNF patterns changed, (for instance at some places more Unicode characters have been allowed)
<palomer>
well, if you define a transformation from one to the other you can use one structure editor for both
<julm>
I was just wondering if it would be easy to select the right BNF pattern according to the version the user would have chosen.
<palomer>
but it might be more useful to built an elegant structure editor that's slightly different but easier to use, and define a transformation to/from xml
<palomer>
julm, oh, I see
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<palomer>
nope, you'll have to define both grammars seperately
<palomer>
BUT they can share the same type (with grammar xml10 (=xml11) : .... )
<julm>
ok
<julm>
thanks :)
<palomer>
(but then you'll have to use (= ..) for every type in the grammar)
<palomer>
wait! it is possible!
<palomer>
grammar ('a,'b,'c,'d,'e,'f) xml : ...
<palomer>
type xml11 = xml rule_1 rule_2 rule_3 ... with seditable
<palomer>
type xml10 = xml rule_1p rule_2p rule_3p ... with seditable
<palomer>
err
<palomer>
make that
<palomer>
rule xml11 = (rule_1,rule_2,...,rule_n) xml with seditable
<julm>
ok, I begin to understand a bit how all this works
<julm>
palomer: perhaps you should put an [ocamlfind remove] before the [ocamlfind install] in the Makefile
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<yziquel>
how do you make the method of a class private to a given module?
<yziquel>
i mean, cleanly?
<bla>
Making it normally public and then not including in module interface won't work I guess?
<yziquel>
bla: well it complains that the type is different in the .mli than in the .ml.
<bla>
Or 'private to a given module' means it won't be visible outside of what? A class?
<bla>
Mhm.
<yziquel>
bla: no. visible inside the rest of the module. some methods must be called within, for hygienic purposes, but shouldn't be public...
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<bla>
I guess I haven' touched objective part of ocaml for too long time.
<yziquel>
bla: function f should be of type myobject -> myobject, and needs to call #dirtymethod. But in the outside interface, i do not want #dirtymethod to be available.
<bla>
I know what you want to do, but no idea how to achieve this.
<yziquel>
bla: thanks anyway...
<bla>
Stick here a little bit longer. Somebody might have done this
<Alpounet>
yziquel, you do not want the rest of the module to know about this #dirtymethod ?
<yziquel>
Alpounet: the module, i do not mind, but outside, i do mind.
<Alpounet>
hmm
<Alpounet>
can't dirty method be a function of type myobject -> myobject instead of a method of myobject ?
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<Alpounet>
(so just a normal function of the module, which wouldn't be included in the public signature)
<yziquel>
Alpounet: that's not really the purpose of why i choose objects in the first place. And not really. These objects are identifiers...
<yziquel>
Alpounet: i need to be able to compare them with a ==.
<Alpounet>
Ok... Well, I can't find anything of help for you, sorry
<yziquel>
Alpounet: thanks...
<Alpounet>
hmm... isn't it possible by creating a module in the class (if it's possible) ? Or some tricky way like that
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<yziquel>
Ah! Ok... found out: the #dirtymethod was here to finalise the creation of the object with extra information. Guarding the object should be enough...
<Alpounet>
fine
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