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From: nkraft@crash.cts.com (Norman Kraft)
Newsgroups: comp.lang.pascal
Subject: Re: Can I declare an array using a var in the index?
Keywords: array
Message-ID: <4585@crash.cts.com>
Date: 22 Sep 90 17:26:17 GMT
References: <1994@ac.dal.ca>
Organization: Crash TimeSharing, El Cajon, CA
Lines: 28

In article <1994@ac.dal.ca> limoges@ac.dal.ca writes:
>I want to write a program which generates 2D arrays of size n x n after n has
>been input from the keyboard by the user running the program. 

I have no experience with the Sun Pascal compiler specifically, but the way 
Pascal compilers are generally built precludes arrays which are of 
indeterminate length at compile-time. The usual approach to this problem is
to declare pointers to the array element type and allocate memory from the
heap at run-time. 

Have you tried this approach? Several pieces of code have been posted to
alt.sources which support this concept, though those are specific to 
Turbo Pascal. You might even be able to implement a variant of the singly
linked list to accomplish the same function. Of course, this means that
you must also write all your own routines to get/place elements from/to
the dynamically allocated "array". Sort of takes the fun out of it, 
doesn't it? :)

Norm.

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Norman R. Kraft	                                "Things should be as
Director, Software Development                   simple as possible,
Postal Buddy Corporation, San Diego, CA          but not simpler."
INET nkraft@crash.cts.com                          - Albert Einstein
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