Hi all !
You statements and your example below makes me think there are problems
with exception handling.
Den 2017-09-21 kl. 14:06, skrev Raul Miller:
"I don't think I understand what should happen in an expression with
multiple operations when we do this "J to trap the exception" thing.
Language design needs to be specified so it does something for all the
cases, and any "trapping of exceptions" that I can think of introduces
all sorts of complexities.
If you do not want those complexities, I think you should not be
attempting to trap those exceptions. "
There is no problem with exception handling? It is then a possible
solution to implement these compulsory IEEE float exceptions?
Cheers,
Erling
-------- Vidarebefordrat meddelande --------
Ämne: Re: [Jprogramming] Overflow, underflow, floats
Datum: Thu, 21 Sep 2017 09:27:51 -0400
Från: Raul Miller <[email protected]>
Svar till: [email protected]
Till: Programming forum <[email protected]>
I do not see any cases illustrated here where it does not work?
What are you talking about?
Thanks,
--
Raul
On Thu, Sep 21, 2017 at 9:22 AM, Erling Hellenäs
<[email protected]> wrote:
Hi all !
I tried the exception handling. It works sometimes. It does not always work?
J can not give errors because the exception handling does not always work?
There is no way to fix it so we have to accept random results of our
programs instead of errors?
p=: 3 1 0 2
q=: 3 1 1 0
A=: A. :: (!@#)
A p
20
A q
24
A. q
|index error
| A.q
a=: 3 : 0
try.
A. y
catch.
'error'
end.
)
a q
error
Cheers,
Erling
Den 2017-09-21 kl. 14:33, skrev Raul Miller:
Sure, and, for example:
typetrap=:4 :0
try.
x/y
catch.
'this is a trap'
end.
)
1 typetrap 1
this is a trap
Or, if you want some other kind of result (or if you want to see valid
arguments):
+`'' typetrap i.4
6
No problem, right?
Thanks,
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