My understanding is that you're supposed to keep your J6 release current 
by copying over the j.dll from J7.  If that's wrong I hope somebody will 
correct me.

Henry Rich

On 5/16/2011 8:54 PM, Raul Miller wrote:
> 2011/5/16 Roger Hui<[email protected]>:
>> I believe I have found and fixed the bug.
>>
>> The problem is in 2 f/\y , implemented by infix2 in file ap.c.
>> by the expression (}:y) f (}.y) .  In certain cases, instead
>> of explicitly doing }:y and }.y, the code constructs
>> headers which point to the same data, thereby saving
>> time and space.  The fix is to make the condition for the
>> "certain cases" more stringent, viz., when f is a primitive
>> atomic function.  This more stringent condition still
>> covers 100.0% of the practically useful cases.
>>
>> Now if somebody demonstrates cases where 2 f/\y fails
>> even for f an atomic function (+ - *>. etc.), I would
>> dispense with the optimization, and just do (}:y) f (}.y).
>
>> From this description, I imagine ]"0 could be used to work around the
> problem for people using an older version of J?
>
> (Will this fix also go into a J6 release?)
>
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