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From: muller@inmet.UUCP
Newsgroups: net.micro
Subject: Arrays in Apple PASCAL Units? - (nf)
Message-ID: <1138@inmet.UUCP>
Date: Fri, 23-Mar-84 00:00:24 EST
Article-I.D.: inmet.1138
Posted: Fri Mar 23 00:00:24 1984
Date-Received: Sun, 25-Mar-84 08:24:33 EST
Lines: 21

#N:inmet:5800047:000:1291
inmet!muller    Mar 22 01:14:00 1984

Question:  In Apple PASCAL 1.1, how can one write a procedure to be included
in a Units library file that will take variable-dimensioned arrays passed to
it as referenced parameters?  If you give the procedure statement in the 
Interface part of the Unit and specify an array type (to insure that the
types will agree between the procedure and any calling program) the compiler
doesn't like it.  Apparantly you must either use a standard type or declare
the type in the Interface section, which produces another compiler error if
the type statement comes before the var statement.  This precludes any non-
constant subscript definitions for a utility procedure, as near as I can see.
  A related question is:  Can you declare variables local to a procedure in
a Unit in the procedure block, or must the all go in the interface section?
If you cannot, then all procedures and functions in any Unit must see the
same variable identifiers.
 Finally, what does Apple PASCAL need for two arrays to be of the same type?
Just similar element types and subscript ranges, or is the requirement more
strict?  These two questions relate to how one might write "generalized"
procedures in a Unit the can take arrays as parameters.
   Thanx,   Jim Muller     ima!inmet!muller    or    harpo!inmet!muller