Interesting. There seems to be a retrogression in J8.03, which included
a new interpreter build.
It gets even weirder:
In J8.03 32-bit,
/:~'p'
p =. 'p'
/:~'p'
/:~p
p
/:~'p'
p
Initialization error?
If Jsoftware would organize a way to modify, build, & test the official
J version, many of us would work on fixing problems like this.
Henry Rich
On 4/11/2015 2:12 PM, EelVex wrote:
What is more alarming, imo, is that:
(in both j701 and j801)
/:~2
2
/:~'p'
p
/:~'pa'
ap
/:~'p'
NB. empty result!
On Sat, Apr 11, 2015 at 9:00 PM, Henry Rich <henryhr...@nc.rr.com> wrote:
Don't expect this to be fixed in J804. There are many small interpreter
bugs and no organized effort to repair them AFAIK.
This bug is similar to the previously-noted bug #86 which was that the
result was atomic rather than a list for equal Boolean values.
On my system, which is J32, /:~1 is 0.
Henry Rich
On 4/11/2015 1:54 PM, robert therriault wrote:
So the fix may already be in process.
The versions that I have found with the issue are:
j602/2008-03-03/16:45 which is not surprising since it is not a current
version and
j803/2014-10-19-11:11:11 in the jhs environment on my mac, which is
certainly more current, although the whisperings suggest j804 may not be
far off.
Cheers, bob
On Apr 11, 2015, at 10:29 AM, 'Pascal Jasmin' via Programming <
programm...@jsoftware.com> wrote:
actually, in Jqt 8.03
1 /: 1
1
----- Original Message -----
From: robert therriault <bobtherria...@mac.com>
To: Programming forum <programm...@jsoftware.com>
Cc:
Sent: Saturday, April 11, 2015 1:16 PM
Subject: [Jprogramming] Results of 1/:1
Just spotted a question on stack overflow from Zhe Hu about the
behaviour of 1/:1
http://stackoverflow.com/questions/29580291/j-sort-
function-1-1-returns-0
2/:2 NB. expected result
2
1/:1 NB. expected 1 as the result
0
Also,
#$ 2 /: 2 NB. result is list as expected
1
#$ 1 /: 1 NB. result is atom, not a list as expected
0
I don't see the reasons that 1/:1 would return the atom 0 as a result,
but that does not mean there one does not exist. :)
Cheers, bob
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