Roger has pointed out the source of the problem. The intention is that J602
(with the new compiler) behave the same as J601 as we were happy with that
behavious (as happy as one can be with _.).
J602 gbeta gives the answer you want. That is:
_. <: _.
1
----- Original Message -----
From: "Henry Rich" <[EMAIL PROTECTED]>
To: "'Beta forum'" <[email protected]>
Sent: Monday, February 04, 2008 8:27 AM
Subject: [Jbeta] J602 incompatibility: _. <: _
On J602,
_. <: _
gives 0. On 601 it gave 1.
This is not a bug but it caused me a few minutes' debugging &
might be mentioned for others.
It's not a bug because the behavior of _. is undefined. But in
a way, it is a J problem because working old code breaks in the
new release.
Just thinking... I try never to have _. in my data, but it's hard
to be sure. How hard would it be to have a debug setting that
gives a domain error if _. is ever produced? Then I would
know that I would be immune from a problem like this.
Henry Rich
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