(unknown charset) [BLACKBOX] Order of calculating parameters

From: (unknown charset) Oleg N. Cher <"Oleg>
Date: Thu, 7 Feb 2013 17:41:57 +0200

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Dear All,

Is the order of calculating parameters uniquely defined in standard of
Component Pascal (or Oberon/Oberon-2)? I've this situation.

PROCEDURE GetData (): INTEGER;
BEGIN (* The data is taken from array "arr", indexed by var "idx". Order
of taken data is one by one. *)
   INC(idx); RETURN arr[idx]
END GetData;

...
   (* Example code: *)
   PutTile(GetData(), GetData(), GetData()); (* x, y, tile number *)
...

If the order always left to right (as, in Turbo Pascal/Delphi, data must
be: x, y, tileNum.
If the order always right to left (just as, in some C compilers) data
must be: tileNum, y, x.

I understand of course, that things depends on used calling convention
model. But standards of Oberons must provide the own independent order,
as I think.

-- 
Oleg N. Cher
VEDAsoft Oberon Club
http://zx.oberon2.ru
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Received on Thu Feb 07 2013 - 16:41:57 UTC