Yes, I know. I put it on the bug list. value error doesn't display.
hhr
On 10/1/2019 7:29 AM, bill lam wrote:
In j807 dbr 1 can print error message although not
entering suspension.
|value error: isboxed
| isboxed y
But j901 (after system error fixed) can print nothing.
Tue, 01 Oct 2019, Henry Rich написал(а):
I will think about this. Applying f. to v allows some inverses to be
calculated that would not otherwise be possible. I have some ideas for a
fix, but I won't put them in till I have thought it over.
hhr
On 9/30/2019 10:55 PM, bill lam wrote:
It can execute and return 0 on j602.
I tested on j807, the value error was already there, so that
the behavior alredy changed at that version or earlier.
JVERSION
Engine: j807/j64/linux
Release-e: commercial/2019-06-10T13:48:44
Library: 8.07.26
Platform: Linux 64
Installer: unknown
InstallPath: /usr/share/j/8.07
Contact: www.jsoftware.com
0!:0<'/home/bill/a1.ijs'
|value error: isboxed
| isboxed y
0!:101<'/home/bill/a1.ijs'
cocurrent 'loc'
dec=: [
isboxed=: 32=3!:0
enc=: 3 : ('1 enc y';':';'isboxed y')
cocurrent 'z'
test=: 0 1&enc_loc_ : enc_loc_ :. (1 1&dec_loc_ : dec_loc_)
testi=: test_z_^:_1
cocurrent 'base'
dbr 1
0:&.testi ''
|value error: isboxed
| isboxed y
In j807 the dbr 1 can print the value error message, but no
suspension.
Mon, 30 Sep 2019, Henry Rich написал(а):
This was deep. The system error was easy to fix for the next release (a
missing NUL terminator to a string).
You still get value error on isboxed, because u&.v is actually processed as
u&.(v f.) when v contains names. Applying f. to a locative such as enc_loc_
removes the locative, thus the resulting verb executes in base. I would
have to study this quite a while before I changed something so deep in the
system.
When you run the code with dbr 1, it doesn't go into suspension when it hits
the value error. This is because it detects the error on the name before it
enters the branch for debugging the execution of the name. I'll put that on
the bug list.
Henry Rich
On 9/29/2019 10:52 AM, Kirk Iverson wrote:
I've been giving 9.01 beta-k a bit of an exercise and have
come across the following:
cocurrent 'loc'
dec=: [
isboxed=: 32=3!:0
enc=: 3 : ('1 enc y';':';'isboxed y')
cocurrent 'z'
test=: 0 1&enc_loc_ : enc_loc_ :. (1 1&dec_loc_ : dec_loc_)
testi=: test_z_^:_1
cocurrent 'base'
dbr 1
0:&.testi ''
|system error
JVERSION
Engine: j901/j64/windows
Beta-k: commercial/2019-09-16T17:06:30
Library: 9.01.10
Platform: Win 64
Installer: J901 install
InstallPath: c:/users/kbi/j901
Contact: www.jsoftware.com
I have seen variants of the problem as I tried to isolate it, with
one symptom being a value error trying to find <isboxed> while <enc>
was running. In that case, the current locale wasn't <loc>, which it
had been in earlier versions of J. Having dbr 1 set also appears to
be a factor in getting the system error.
/K
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