... Okayyyy. SQLite is a fine choice of database, but (AIUI) it's not the sort of database which needs a server, so I'm not sure in what sense such a database...
7052
deech_99
Jan 7, 2007 9:53 pm
... At this prelim stage I am thinking of using Sqlite and Labltk (is there a better GUI library in ocaml?). I have not started coding and I am a complete...
7051
Richard Jones
rwmjones
Jan 7, 2007 9:22 pm
... OCaml does have thread support, so this will work fine. You're a bit vague on essential details like what database(s) you're querying and what GUI system...
7050
Lars Nilsson
larsn66
Jan 7, 2007 7:43 pm
... I think it would work ok, if you indeed plan to sleep in the threads most of the time. I believe the blocking functions (like sleep) releases the mutex...
7049
deech_99
Jan 7, 2007 7:19 pm
Hi all, I am considering Ocaml for a project where a client requests JPEG images from multiple databases running on remote machines. On the client GUI I want...
7048
Jonathan T Bryant
jonboy3182
Jan 7, 2007 5:14 pm
... Maybe I'm oversimplifying, but since the "-thread" option is already needed to enable threaded code, couldn't there be a "-multithread" option to enable a...
7047
Richard Jones
rwmjones
Jan 7, 2007 2:18 pm
... OCaml code can run in at most one thread at a time, and the reason for that is that the garbage collector isn't reentrant. If it was reentrant, it'd pay a...
7046
Robert Roessler
robertr959
Jan 7, 2007 10:14 am
... You might want to check out a recent announcement on the OCaml list from Gerd Stolpmann on December 28 titled "ocamlnet-2.2 released". Robert Roessler ...
7045
jshaw10
Jan 7, 2007 6:16 am
If I'm understanding http://en.wikipedia.org/wiki/Reentrant as describing your problem, it seems like Unix.fork (ie fork()) would do the trick. Threads made...
7044
Eric Lavigne
lavigne.eric
Jan 7, 2007 2:38 am
... My int_of_float version is rather long, and also always rounds up for negative numbers. It looks to me like Remi's ceil version always rounds up. It seems...
7043
Oliver Bandel
oliver@...
Jan 6, 2007 11:16 pm
On Sat, Jan 06, 2007 at 03:07:50PM +0100, Oliver Bandel wrote: [...] ... [...] Especially SharedMem would be fine. Thinking about it.... wouldn't it be...
7042
Martin Jambon
BioMim
Jan 6, 2007 11:16 pm
... Arghhh, no, not int_of_float or truncate. -- Martin Jambon http://martin.jambon.free.fr...
7041
Martin Jambon
BioMim
Jan 6, 2007 11:04 pm
... Beware of sign issues with ceil or int_of_float/truncate since ceil (-.x) <> -. ceil x -- Martin Jambon http://martin.jambon.free.fr...
7040
Remi Vanicat
dl_ens
Jan 6, 2007 7:00 pm
... you can also use ceil : let precision_round x digits_after_decimal = let multiplier = 10. ** (float_of_int digits_after_decimal) in (ceil ((x *....
7039
William Neumann
scoey13
Jan 6, 2007 5:07 pm
... You need to load it first. From the manual: Programs that use the num library must be linked as follows: ocamlc [other options nums.cma other files ...
7038
Sachin Shah
zakaluka
Jan 6, 2007 3:12 pm
Hi, The best way is to download the OCaml source code. Under the 'otherlibs/num' directory, you will find ratio.ml[i]. Neither file is flush with comments,...
7037
Eric Lavigne
lavigne.eric
Jan 6, 2007 3:08 pm
... # let precision_round x digits_after_decimal = let multiplier = 10. ** (float_of_int digits_after_decimal) in (float_of_int (int_of_float ((x *....
7036
Oliver Bandel
oliver@...
Jan 6, 2007 2:11 pm
... [...] Shouldn't it be easy toparallelize, when using fork() to make seperate processes? There is one thing that would be nice to have: IPC. Ciao, Oliver...
7035
Eric Lavigne
lavigne.eric
Jan 6, 2007 2:06 pm
... int_of_float rounds down. # int_of_float 3.0;; - : int = 3 # int_of_float 3.4;; - : int = 3 # int_of_float 3.5;; - : int = 3 # int_of_float 3.6;; - : int =...
7034
Jon Harrop
harropjon
Jan 6, 2007 12:45 pm
... Indeed, F# has many useful features that OCaml lacks and concurrency is one of them. However, there is a considerable cost to having a concurrent GC and, ...
7033
Eric Berend
tradewisdom
Jan 6, 2007 12:06 pm
Hi, After a careful evaluation process, candidate languages for a proposed financial markets analysis programming project have been narrowed down to a very...
7032
Martin Jambon
BioMim
Jan 5, 2007 8:03 pm
... No, it's a very general and powerful mechanism in OCaml. These kind of types are called sum types or variants, and the "match with" stuff is what is called...
7031
al_kolesnikoff
Jan 5, 2007 7:21 pm
... value ... Does this method only for work with "option type" ? Thank you very much for your answer! Alexander...
7030
Martin Jambon
BioMim
Jan 5, 2007 6:51 pm
... Your dbs object is not exactly an array, it is an option type: its value is either "None" or "Some a" where "a" is an array. If you want to get the length...
7029
al_kolesnikoff
Jan 5, 2007 6:26 pm
# let dbs = list_dbs db ();; val dbs : string array option = Some [|"mysql"; "radius"; "test"|] If I'm trying: # Array.length dbs;; I'm teceive: This...
7028
Jonathan Roewen
consulatewizard
Jan 5, 2007 5:38 am
... let newlist = ... in newgparticles opart gplist ~newghostparts:newlist And you'll get the warning about the optional argument not being able to be...
7027
Christian Lerrahn
js.fan
Jan 5, 2007 4:52 am
Hi Jonathan, I feel stupid but I didn't understand your remedy. I tried to explicitly state the type of my optional argument but the error stayed the same....
7026
Robert Roessler
robertr959
Jan 5, 2007 4:47 am
... Just to emphasize this point, from "4.1.1 Optional arguments" of the OCaml manual we have "A function taking some optional arguments must also take at...
7025
Jonathan Roewen
consulatewizard
Jan 5, 2007 3:30 am
It's because your optional argument can't be erased, confusing the type checker. Adding an explicit type (foo list) to newghostparts, Expecting function has...
7024
Christian Lerrahn
js.fan
Jan 5, 2007 3:02 am
Hi, I have this snippet of code that drives me crazy. I just don't see why my types are mismatching. It's rather ugly code anyway but I couldn't think of a...
