[Oberon] Re (2): Re (2): LONGINT, RETURN & etc.

[peter at easthope.ca]

From:	Chris Burrows <chris at cfbsoftware.com>
Date:	Sat, 17 Jun 2017 14:52:57 +0930
> The CONST keyword protects the parameter from being changed within the 
> body of the procedure and any procedures that it calls i.e. the value 
> is read-only. 

Makes perfect sense, thanks.  The meaning should be obvious but 
I missed it.
 
From:	Chris Burrows <chris at cfbsoftware.com>
Date:	Sun, 18 Jun 2017 08:51:11 +0930
> NIL is a reserved word representing a null POINTER, " " is a blank CHAR.
> They do not denote that 'expression' is optional.
> 
>   RETURN NIL END is valid 
> 
>   RETURN " " END is valid 
> 
>   RETURN END is not valid

Oops.

Thanks,          ... Lyall E.
               
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