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Re: [Bug-apl] This looks wrong


From: Juergen Sauermann
Subject: Re: [Bug-apl] This looks wrong
Date: Tue, 05 Aug 2014 17:47:44 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130330 Thunderbird/17.0.5

Hi,

this is how I read the ISO standard. If a statement that is valid per ISO returns
a wrong result then I consider that a fault that should be (and was) fixed.

If that conflicts with an intended use of a non-standard extension like the ⍣ operator then I
would rate that as simply bad luck (as opposed to a fault).

/// Jürgen


On 08/05/2014 04:40 PM, Elias Mårtenson wrote:
Are you sure we want to fix that though? Things like the power operator (once we have it) will not work right (since it's seems to be often used to execute a niladic function a certain number of times.

The SQL∆WithTransaction will have the same problem.

The workaround seems to be a bit ugly, like prefixing the lambda function with ⍵⊢

Regards,
Elias


On 5 August 2014 22:07, Juergen Sauermann <address@hidden> wrote:
Hi David,

thanks, fixed in SVN 417. Unfortunately, as a consequence, it is no
longer possible to pass a niladic function to an operator.

/// Jürgen



On 08/05/2014 09:39 AM, David B. Lamkins wrote:
Maybe I've misunderstood some APL2 corner case, but the behavior of the
attached program seems wrong.






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