Home > Archive > APL > February 2008 > Re: XT in Dyalog
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| aleph0 2008-02-01, 10:00 pm |
| >>"Maybe Morten can tell me whether he sees any[color=darkred]
.... apart from the obvious one whereby the amount of free WS has to be
big enough to hold the variable of course !
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| David Liebtag 2008-02-01, 10:00 pm |
| Sounds like Associated Processor 12 in APL2.
David Liebtag
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"aleph0" <apl68000@tiscali.co.uk> wrote in message
news:d6caa368-efb5-4dc6-a560-565ca5640e96@j78g2000hsd.googlegroups.com...
On Feb 1, 8:34 pm, "Curtis A. Jones" <curtis_jo...@ieee.org> wrote:
[color=darkred]
> = eXTernal Variable
>
> "filename" []XT "variablename"
>
> Allows you to store a variable "externally", i.e. as a file on a disk.
You may even store functions as external variables and call them back during
runtime. It might have some di vantages tho: it's always one step more and
therefore more vulnerable and it costs some cpu-time, although it was quite
fast in my remembrance.
Also Digital's VAX APL had []XT.
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