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World: r3wp

[Core] Discuss core issues

Rebolek
15-Sep-2005
[1994x6]
>> none and true
** Script Error: Cannot use and~ on none! value
** Near: none and true
Looks like 'and is calling 'and~
So perform some simple tests.
>> x: now/time/precise loop 10000000 [true and true] probe now/time/precise 
- x
0:00:03.39
>> x: now/time/precise loop 10000000 [and~ true true] probe now/time/precise 
- x
0:00:05.188
Hm, 'and is calling 'and~ but is faster than 'and~
Ladislav
15-Sep-2005
[2000x3]
BrianH: do you think, that you could give a simple example using 
MAKE OBJECT! that would break using the deep copying variant of CONTEXT?
Even better, if you have got such an example already in your scripts
TIA
Joe
15-Sep-2005
[2003]
I found that that running core on a AMD 64-bit box is not better 
than in a 3-year older 32-bit box. Should we expect a 64-bit core 
build ?
Graham
15-Sep-2005
[2004]
Not any time soon.
Pekr
15-Sep-2005
[2005]
how do you know? :-)
Graham
15-Sep-2005
[2006]
logic!
Pekr
15-Sep-2005
[2007]
>> true? logic!
== false :-)
Graham
15-Sep-2005
[2008]
RT has already stated their priorities viz OSX, SDK, and then IOS. 
 Since Rebol presumably runs already on windows 64 bit version, there 
is no pressing need to develop that product, and so it is logical 
to assume that it falls in priority after all of the above.
Pekr
15-Sep-2005
[2009]
well, no news on OS-X for how long? One month? Things really go way 
too much slowly .....
Graham
15-Sep-2005
[2010]
However, since Carl released the Genesi PPC Linux version  just recently, 
I guess it also true to assume Carl does not act logically !
Pekr
15-Sep-2005
[2011x2]
:-))
well, it is surely easier to port Core than to port View ... that 
might be the reason?
Graham
15-Sep-2005
[2013x2]
Do you mean, do the easy things first and leave the hard stuff to 
later?
If so, I don't think that's a recipe for success.
Pekr
15-Sep-2005
[2015x2]
not sure ... but maybe Genesi sponsored some of Carl's time and convinced 
him it might be important for them to have Rebol ... then Rebol for 
Genesi might be an enabler ...
once again we are here to ask ourselves, if open-source would not 
speed-up things significantly ...
Graham
15-Sep-2005
[2017]
speed is not RT's priority, but ensuring a successful company is.
Pekr
15-Sep-2005
[2018x2]
hmm, that does not have logic at all? How you want to be succesfull, 
if you are not able to fullfill your plans for one year? What from 
last year's plans got actually released?
I can tell you the truth - if there would not be 1.3, I would not 
be with rebol already ... and ppl at ml were right - 4 years to wait 
for View update? I hope it will not happen again ...
Graham
15-Sep-2005
[2020]
fortunately we are seeing updates at regular intervals.
Volker
15-Sep-2005
[2021]
genesis - this medical firm is in search for an os, isnt it? its 
small, efficent, amiga-like? and ppc is a good embedded processor? 
Just thinking loud :)
Joe
16-Sep-2005
[2022]
I recall AMD was a big RT customer (using IOS for intranet, documentation, 
...). This would make the case for x86_64 core
Graham
17-Sep-2005
[2023]
What's the logic! in this ?

>> true: all [ false ]
== none
Henrik
17-Sep-2005
[2024]
>> false
== false
>> all [false]
== none
>> true: all [false]
== none
Graham
17-Sep-2005
[2025x2]
I mean, should all [ false ] return false ?
instead it returns none.
Henrik
17-Sep-2005
[2027x2]
>> ? All
USAGE:
    ALL block

DESCRIPTION:

     Shortcut AND. Evaluates and returns at the first FALSE or NONE.
     ALL is a native value.
if there is nothing before false... what's there to evaluate?
Graham
17-Sep-2005
[2029x3]
returns at the first FALSE
>> all [ true false ]
== none
>> true and false
== false
Henrik
17-Sep-2005
[2032x3]
yes, if it's equivalent of AND, that makes sense
>> all [1 2 3 4 5 false]
== none
>> all [1 2 3 4 5]
== 5
but:

>> 1 and 2 and 3 and 4 and 5
== 0
>> 1 and 2 and 3 and 4 and 5 and false
** Script Error: Expected one of: integer! - not: logic!
** Near: 1 and 2 and 3
Graham
17-Sep-2005
[2035]
well, the behaviour of 'all confuses me.
Henrik
17-Sep-2005
[2036x3]
it doesn't make too much sense as a shortcut AND.... it makes more 
sense to say that it returns a value unless there is a FALSE or NONE 
in the block
if you stick to TRUE and FALSE for ALL and AND, they would be equivalent 
in behaviour. it seems that ALL allows more mixing of the datatypes
could it be that all values are converted to logic! ?

>> to-logic 1
== true
>> to-logic none
== false
>> to-logic false
== false
>> to-logic 2
== true
Graham
17-Sep-2005
[2039]
perhaps we need to make an amendment to the wikibook.
Henrik
17-Sep-2005
[2040]
it seems not:

>> all [1 2 3 false]
== none

>> (to-logic 1) and (to-logic 2) and (to-logic 3) and (to-logic false)
== false
Graham
17-Sep-2005
[2041]
either that, or a RAMBO entry.
Henrik
17-Sep-2005
[2042]
well it seems to behave like AND, it just returns NONE instead of 
FALSE
Graham
17-Sep-2005
[2043]
so, it's not a shortcut