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World: r3wp

[Core] Discuss core issues

Andreas
14-Jul-2010
[17531x2]
Brian: do you in fact read what I write? Or just single our words 
to pick on?
When using double precision, the behaviour of the current implementation 
of REBOL 3 for Windows is wrong.
 -- Do I imply anywhere in this sentence that this is not a bug?
BrianH
14-Jul-2010
[17533]
I read it. I was saying that *as a hard rule* platform-specific behavior 
is reserved for only a few functions in R3. For other functions it 
is a bug. I'm not satisfied until that bug is at least reported. 
Am I clear now?
Andreas
14-Jul-2010
[17534]
Feel free to report it.
Ladislav
14-Jul-2010
[17535]
Nobody will correct it, though, since it is generated by the MS compiler
BrianH
14-Jul-2010
[17536x2]
Andreas, I am not qualified to do so. I haven't read the standard, 
don't know the code involved, and don't run Linux.
Ladislav, why can't you write your own formatter, or use a consistent 
third-party one? At least when you detect a known error during config?
Andreas
14-Jul-2010
[17538]
Brian, you are perfectly qualified. mold/all 0.1 on Windows differs 
from mold/all 0.1 on Linux. If you are only satisfied when this is 
reported as bug, feel free to report it.
BrianH
14-Jul-2010
[17539]
But I can't say which is the buggy one.
Ladislav
14-Jul-2010
[17540]
Ladislav, why can't you write your own formatter
 - I can do so in GCC, but not in MS C, sorry
Andreas
14-Jul-2010
[17541]
Brian, you don't have to.
Ladislav
14-Jul-2010
[17542]
(unsupported)
Andreas
14-Jul-2010
[17543]
Report the observed difference and the expectation that this should 
not differ. The rest is up to whoever feels qualified to contribute 
more detailed observations and/or implementing a fix.
BrianH
14-Jul-2010
[17544x2]
Andreas, sorry, CureCode doesn't let you report a platform-specific 
bug without specifying the platform. I can't just say "it's not consistent" 
without it being a useless bug report. We need a report from a person 
who is qualified to make an expert decision.
At the very least, it means that any report I make would have to 
be rewritten (or comments to the same effect) by Ladislav, or someone 
equivalently qualified.
Ladislav
14-Jul-2010
[17546]
I can admit it is a bug, by I cannot really correct it in MS C without 
"too much expense"
Andreas
14-Jul-2010
[17547x2]
http://www.curecode.org/rebol3/ticket.rsp?id=1633
See, that was not so hard to report, was it?
BrianH
14-Jul-2010
[17549]
Just like I have to rewrite all of the bug reports about R3's module 
system before they can be useful. It sucks, but we need an expert.
Andreas
14-Jul-2010
[17550]
Now it is in the system, on those more knowledgeable on the matter 
can refine it.
BrianH
14-Jul-2010
[17551x2]
Ladislav?
What do you mean by "too much expense"?
Ladislav
14-Jul-2010
[17553]
Well, sure, it is a report, but, as I said, I am not going to correct 
it (would be too expensive)
Andreas
14-Jul-2010
[17554]
That's not a problem. If it is not possible to fix, Carl or someone 
else can decide that this behaviour is ok and mark it as won't fix.
Ladislav
14-Jul-2010
[17555x2]
To implement my own formatter, MS disallows me to use the best datatype 
for it
So, I have to use their formatting function, which produces this 
result
BrianH
14-Jul-2010
[17557]
Please put that in a comment of bug#1633 - it might help justify 
not using MS's compiler.
Steeve
14-Jul-2010
[17558x2]
Ladislav, I would like to see how you write that formatter under 
GCC, Is that too much code that you can't show it us ?
If so, forget it
Ladislav
14-Jul-2010
[17560x3]
Hmm, I should not do it, I suppose.
But, the principle is quite simple: multiply the number by a "suitable" 
power of 10 and convert the result to integer. The trouble is, that 
you need to use a high precision multiplication and power.
(which is unsupported in MS compiler)
Steeve
14-Jul-2010
[17563]
You mean, you don't do it using an incremental way, each digit separatly 
?
Ladislav
14-Jul-2010
[17564]
No
BrianH
14-Jul-2010
[17565]
What version of the MS compiler is being used? Can it be upgraded, 
and would that help? Can the Intel compiler be used, or the DMC++?
Ladislav
14-Jul-2010
[17566]
Only "ancient" versions of MS compiler support the extended precision
Andreas
14-Jul-2010
[17567]
GCC should suffice. And as Carl is already using it for the Host 
Kit, it may also be possible.
Gabriele
15-Jul-2010
[17568x4]
Max: this is very funny. normal MOLD, afaik, is only there for backward 
compatibilty. i personally almost always use /all, when i don't use 
it it's because i'm molding something i just loaded or something 
like that, eg. i know that i don't need the /all, bet even if i used 
it it would make no difference at all.
it's very very hard imho to come up with reason NOT to use /all...
if you try to DO a script saved with SAVE/all or MOLD/all, it will 
fail if it contains functions or objects.
 - show me an example.
The primary purpose of SAVE is to save scripts that are to later 
be processed by DO.

 - weird, i always use save and load to save and load data. but, even 
 if that was the case, save/all would work just as well, so this is 
 a silly argument.
Graham
15-Jul-2010
[17572]
Hmm... I recall saving rebol objects with save/all and not being 
able to load them again properly
Gabriele
15-Jul-2010
[17573]
but SAVE is not only for DED, THAT is my point.

 - in that case, SAVE/ALL is *BETTER* than SAVE. there is no argument 
 about that.
Graham
15-Jul-2010
[17574]
some problem with functions inside objects or something
Gabriele
15-Jul-2010
[17575x5]
If you write them out directly in that syntax, you are mixing paradigms.

 - that makes NO sense. I write them directly MANY times because it 
 saves useless evaluation of DATA
Brian: your #[function! ] example is something I have ALWAYS pointed 
out as a bug and you ALWAYS countered by saying it is a "security 
feature" which i still thing is a very stupid thing to do (doing 
that as a "security feature")
SAVE and MOLD are explicitly designed to be newbie-friendly

 - I though Carl had realized, that "newbie-friendly" is the worst 
 thing you can do to a language. I hope others realize this as well, 
 as soon as possible...
Graham: show me ONE example of something you can LOAD but then breaks 
when you SAVE/ALL it back.
SAVE is *not* able to serialize arbitrary REBOL data. that is a known 
problem that Carl did not consider important enough to address, since 
he prefers using dialects to interchange data instead of just moving 
around the internal representation a program may be using.
Ladislav
15-Jul-2010
[17580]
User friendliness
 is in the eye of the beholder. I consider this:

>> block: [none #[none] true #[true] 0.1 0.10000000000000002]
>> print mold/all block

[none #[none] true #[true] 0.10000000000000001 0.10000000000000002]
>> print mold block
[none none true true 0.1 0.1]


as a problem for me, trying to give me wrong informations, as well 
a a problem for a beginner, who may not even be able to find out 
the informations he obtained were wrong