Hi all. I was wondering, what do you guys do when wanting to perform the 'instanceof' (ala Java) operation? In Eiffel the options that I know of seem to be: *...
Phil Malin
psm@...
May 2, 2001 1:52 am
3424
Not that I've heard of. This sort of test is regarded as being inherently inelegant design in Eiffel. If you are sure there is no deferred feature of...
Britton
fsblk@...
May 2, 2001 2:13 am
3425
... This looks like double dispatch, in which case you'd normally use a Visitor. But assuming you don't want to do that... What about something like this: ...
Patrick Doyle
doylep@...
May 2, 2001 2:34 am
3426
... I find this situation arises when a class hierarchy is used for some classification scheme and we want to know what particular object we're dealing with. ...
Phil Malin
psm@...
May 2, 2001 6:59 am
3427
... Actually, that's pretty nifty. Currently I've ended up simply having a 'type' query in my classes and performing a comparison. At the moment I'm equating...
Phil Malin
psm@...
May 2, 2001 7:01 am
3428
... Polymorphism? Typically if you dispatch on types you're missing functionality in the hierarchy you're dispatching against. Sometimes there may be a good...
Franck Arnaud
farnaud@...
May 2, 2001 10:25 am
3429
... Personally, I'd use a Visitor unless I had a compelling reason not to. Polymorphism is almost always the best way to separate objects by their class,...
Patrick Doyle
doylep@...
May 2, 2001 1:54 pm
3430
... It's considered bad in other languages too, like Smalltalk for example. One "advantage" Smalltalk has is that you can add your methods to existing classes....
Marcio Marchini
mqm@...
May 2, 2001 2:29 pm
3431
... Maybe you should have a deferred 'deal_with()' procedure in a deferred PLAYER class, and define it in its SCIENTIST, MANAGER, etc., descendants. Other...
Ignacio Calvo
icalvo@...
May 3, 2001 12:59 am
3432
Hi there. [I hope this isn't getting too off-topic as far as the mailing list goes...] ... Definately. Actually, upon rereading what I originally wrote I...
Phil Malin
psm@...
May 3, 2001 6:28 am
3433
... Phil> Actually, upon rereading what I originally wrote I wasn't Phil> very clear describing where I'm coming from. Phil> I don't want to use this method to...
jweirich@...
May 3, 2001 11:10 am
3434
First, before the "job", just a short greeting to all Eiffel-interested people, and note of thanks to D. Colnet and all others who work on SmallEiffel...
Aleksa Todorovic
alexa@...
May 4, 2001 5:13 pm
3435
... Thank you very much, ... I don't understand the error. Can you repost a ready-to-compile archive ? It would be great to find a bug in a so simple example...
Dominique Colnet
Dominique.Colnet@...
May 5, 2001 7:26 am
3436
... Is is possible to make your test suite available for download. I think this could be interesting for everyone who wants to add an own hack to SmallEiffel...
Hartmut Scholz
hartmut.scholz@...
May 5, 2001 11:09 am
3437
... No. Just some Eiffel file ready to be cut and paste in order to reproduce easily the bug here. -- ... Dominique.Colnet@... -- UHP (Nancy 1) -- INRIA...
Dominique Colnet
Dominique.Colnet@...
May 5, 2001 2:49 pm
3438
The sum of two negative numbers should be a negative number, but the following program produces this output: -4782969/134217728 + -4782969/1073741824 =...
Greg Reagle
greagl1@...
May 6, 2001 2:44 am
3439
Here's another bug I found. When I try to create expanded object, compiler fails to generate valid code. Generated code looks fine: _dummy=M20; "Wrong thing"...
Aleksa Todorovic
alexa@...
May 6, 2001 5:26 pm
3440
Well, I'm finally beginning the long and painful task of implementing the PalmOS databases in ePalm... and finally, after weaseling out of it for a long time,...
Victor B. Putz
vputz@...
May 6, 2001 11:13 pm
3441
If you don't mind hacking the compiler a bit you could add the type you need. A few months ago I added various sized integers to SmallEiffelPlus ...
J. Scott Edwards
sedwards@...
May 7, 2001 2:28 pm
3442
... The SMT Kernel http://www.imatix.com/html/smt/ The SMT (Simple Multi-Threading kernel) from iMatix is an add-on for the Libero programming tool...
Marcio Marchini
mqm@...
May 8, 2001 8:16 am
3443
... Having a quick look at SMT, it appears to be a combination of user-level cooperative multithreading and several other concepts (such as event handling)....
Patrick Doyle
doylep@...
May 8, 2001 2:15 pm
3444
... Compared to what I'm having to do today with SE for network programming, I can't see how it would get any worse. :) marcio...
Marcio Marchini
mqm@...
May 8, 2001 2:43 pm
3445
... I should have mentioned this yesterday but in my haste I forgot. You may want to be careful with the 16-bit integer thing in SE, I seem to remember there...
J. Scott Edwards
sedwards@...
May 8, 2001 5:52 pm
3446
Just a simple Yes/No question for the compiler gurus: SmallEiffel generates one header file for all generated c files. Does this mean that whenever i add /...
Hartmut Scholz
hartmut.scholz@...
May 8, 2001 6:08 pm
3447
... Yes, but i don't think that a lot of persons are able to read german so i answer in english again. ... This is very dumb algorithm. There are a few methods...
Hartmut Scholz
hartmut.scholz@...
May 14, 2001 4:37 pm
3448
... I'm not speaking about the C-Compiler, it could be possible for the Smalleiffel compiler to track which structure accesses are made in which c file and...
Hartmut Scholz
hartmut.scholz@...
May 15, 2001 10:37 am
3449
... This is what is already done. Only some files are recompiled. I know too that it could be improved ! ... I am not sure to understand the "lazy" word (or I...
Dominique Colnet
Dominique.Colnet@...
May 15, 2001 1:36 pm
3450
Just back from 4 weeks leave (will start up elj-daily shortly, thanks for all the elj-submit's) and have just tried to compile the latest SE beta: ...
geldridg@...
May 30, 2001 2:01 am
3451
It's all my fault . . . those nice new help messages were contributed by me. The intention is that they should now be (vaguely) GNITS-compliant (even if not...
Richard Walker
Richard.Walker@...
May 30, 2001 2:44 am
3452
Hi Goeff, ... I have tested on Windows with my favorite C compiler, lcc-win32 accepts long string without any problem. This is also true for gcc on Linux/Unix....
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