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Re: [Bug-apl] Restrictions on localization of system variables?


From: Juergen Sauermann
Subject: Re: [Bug-apl] Restrictions on localization of system variables?
Date: Tue, 27 May 2014 18:06:06 +0200
User-agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130330 Thunderbird/17.0.5

Hi,

thanks, should be fixed in SVN 294.

Note that there are some subtle differences between IBM APL2 and GNU APL
when localizing ⎕-vars. In IBM APL2 they are undefined after localizing them. In GNU APL they are pre-initialized with their respective default values. This gives simpler (and therefore faster code) because no check for validity is needed
for the variables themselves, but also for the many internal users of them.

/// Jürgen


On 05/26/2014 09:29 PM, David B. Lamkins wrote:
On Mon, 2014-05-26 at 13:36 -0500, Blake McBride wrote:
Off the cuff, ⎕PW should be localizable too.


⎕CT
⎕FC
⎕PP
⎕PR
⎕PW
⎕RL


On Mon, May 26, 2014 at 1:12 PM, David B. Lamkins <address@hidden>
wrote:
         It appears that quad-IO and quad-CT are the only system
         variables
         localizable in GNU APL. Is this intended? Given a quick look,
         I see no
         support for this restriction in either the IBM or ISO
         references.








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