[Oberon] [Component Pascal]

[Jörg Straube]

Hi

Yes it's legal. However the runtime behaviour depends on how clever the compiler is.
The book "Programming in Oberon" says
"The for statement has the advantage of guaranteed termination."
So for example a stupid compiler translates the following code into a program that runs forever:
  FOR i := 1 TO 2 DO DEC(i) END.

A more clever compiler translates
  FOR i := m TO n-1 DO (* some processing *) END;
into
 temp := m;
 WHILE temp < n DO i:= temp; (* some processing *) INC(temp) END;

Jörg


On 16.02.2013, at 14:49, <Aubrey.McIntosh at Alumni.UTexas.Net> wrote:

> Is this legal?
> 
> 		FOR ix := 0 TO 2 DO
> 			INC( ix )
> 		END;
> 
> -- 
> Aubrey McIntosh, Ph.D.
> 211 E. 5th St.
> Morris MN 56267
> (512)-348-7401
> 
> --
> Oberon at lists.inf.ethz.ch mailing list for ETH Oberon and related systems
> https://lists.inf.ethz.ch/mailman/listinfo/oberon
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