[Jprogramming] J807 beta-k is available

['Mike Day' via Programming]

fwiw,  trying this in a new instance of JQt,  the first line worked 
fine, as you'd expect.
I then tried the rhs of the equivalence test:
((i. 5) +/ (5 * i. 500)) <@:{"1 _ yy =. 2500 $ 3 1 4 1 5 9x
and that was fine too.

But,  the session window hung and then terminated running this lhs,
(yx </. ({. , }.) yy)

Reducing the size of the arrays still fails to work unless one removes 
({. , }.)
from the lhs!

So this works ok:
yx =. 10 ((* #) $ ]) 1 2 3 4 5
(yx </. yy) -: ((i. 5) +/ (5 * i. 10)) <@:{"1 _ yy =. 50 $ 3 1 4 1 5 9x
1

So I tried removing ({. , }.) from the lhs of the test with the original 
size arrays:
yx =. 500 ((* #) $ ]) 1 2 3 4 5
(yx </. yy) -: ((i. 5) +/ (5 * i. 500)) <@:{"1 _ yy =. 2500 $ 3 1 4 1 5 9x
1

JQt session stays open.

Needless to say (?),  ({. , }.) yy evidently runs without problem.

It seems that the ({. , }.) intervention does the damage!?!?

Cheers,

Mike






On 25/09/2018 01:09, David Mitchell wrote:
> I was running the test cases on beta-k and found this test that 
> terminated jconsole on windows 10:
>
>    JVERSION
> Engine: j807/j64/windows
> Beta-k: commercial/2018-09-05T17:19:28
> Library: 8.07.17
> Platform: Win 64
> Installer: J807 install
> InstallPath: c:/users/me/downloads/j/j64-807
> Contact: www.jsoftware.com
>
> g421.ijs
>
>    yx =. 500 ((* #) $ ]) 1 2 3 4 5
>    (yx </. ({. , }.) yy) -: ((i. 5) +/ (5 * i. 500)) <@:{"1 _ yy =. 
> 2500 $ 3 1 4 1 5 9x
>
> 1
> (jconsole exits)
>
> This test ran fine on Ubuntu Linux 64.
>
> David Mitchell
>
> On 9/6/2018 11:34, Eric Iverson wrote:
>> J807 beta-k is now available for window/linux/macos.
>>
>> With luck this is the last beta and the final 807 will be released in 
>> early
>> October.
>>
>> Please install and use! Problems found and fixed before the final 
>> release
>> will be to the benefit of the entire community.
>> ----------------------------------------------------------------------
>> For information about J forums see http://www.jsoftware.com/forums.htm
>>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm



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