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From: l107353@cliffy.lfwc.lockheed.com (Garlington KE)
Newsgroups: comp.lang.ada
Subject: Re: Re : Run time sizing of arrays - HELP
Date: 8 Feb 1995 15:51:38 GMT
Organization: Lockheed Fort Worth Company
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Date: 1995-02-08T15:51:38+00:00
List-Id: <comp.lang.ada>

Marcel Hawtin (hawtinml@aston.ac.uk) wrote:

: I'm new to Ada, and was wondering if it is possible for the size of arrays to be
: determined at run time.

: For example, many years ago it was possible to say in BASIC something like :

: 10 INPUT A
: 20 INPUT B
: 20 DIM(A,B)

The equivalent in Ada would go something like:

  A, B : Positive;
  ..
  Pos_IO.Get(A);
  Pos_IO.Get(B);

  declare
     type Some_Dynamic_Array_Type is array (1 .. A, 1 .. B) of Some_Object;
     C : Some_Dynamic_Array_Type;
  begin
  ..

  Notice I said "Something" like, since (1) I don't have an Ada compiler on
  this machine and (2) there's several other ways (all better, I'm sure) for
  creating C and (3) it's been a long time since I wrote any BASIC.  

--------------------------------------------------------------------
Ken Garlington                  GarlingtonKE@lfwc.lockheed.com
F-22 Computer Resources         Lockheed Fort Worth Co.

If LFWC or the F-22 program has any opinions, they aren't telling me.