Just beginning to learn J this week, I find myself binging the documentation
and have some questions regarding J lexing. In particular, my question is about
the sample J lexer presented in the dyadic ;: entry of the dictionary:
https://www.jsoftware.com/help/dictionary/d332.htm
Essentially, I'm
Ok, I think I begin to understand...
(I'm pretty sure you're saying this particular check is just about
name re-use and maybe reference count handling, and that memory re-use
or in-place array update happens elsewhere with additional tests.)
Thanks,
--
Raul
On Thu, Oct 3, 2019 at 4:21 PM Henry
Hmm...
({.% */@}.) 1 2 3 4 5
would actually work if we replaced 1 2 3 4 5 with an arbitrary
different list of numbers.
It would not work, though, if we replaced % with a different verb.
Thanks,
--
Raul
On Thu, Oct 3, 2019 at 5:22 PM Nollaig MacKenzie
wrote:
>
> I'm guessing
>
> %*/2 3 4
I'm guessing
%*/2 3 4 5
wouldn't count
On 2019.10.02 23:43:40, you,
the extraordinary Skip Cave, spake thus:
>
> I can write:
> 1%(2%(3%(4%5)))
>
> 1.875
>
>
> Using insert, I can simplify:
>
> %/1 2 3 4 5
>
> 1.875
>
>
> Now I can write:
>
> (((1%2)%3)%4)%5
>
> 0.008
Yes, everything is safe to use. The message (which obviously I didn't
mean to send to the Forum) was about a bug
name =: (verb adverb_locative_) verb noun
which messed up the execution of the adverb.
In my terminology, a verb is 'assignment-safe' if it is ok to execute
the verb in-place whe
V0=: V1=: ,~
Safe?
Thanks,
--
Raul
On Thu, Oct 3, 2019 at 12:59 PM Henry Rich wrote:
>
> This turned out to be a very deep problem. After I fixed it & ran his
> code, I get a crash in mema where Windows says memory has been modified
> out of bounds. I am assuming this is his error, but in c
This turned out to be a very deep problem. After I fixed it & ran his
code, I get a crash in mema where Windows says memory has been modified
out of bounds. I am assuming this is his error, but in case not I think
you should give him a version with the latest fix to test with.
It turned out
