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Newsgroups: comp.lang.ada
Date: Sat, 1 Oct 2016 13:01:48 -0700 (PDT)
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Subject: Re: Passing a 2d array into a package and returning the same
 processed 2d back to main
From: Aurele <aurele.vitali@gmail.com>
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Xref: news.eternal-september.org comp.lang.ada:31961
Date: 2016-10-01T13:01:48-07:00
List-Id: <comp.lang.ada>

Off the top of my head, maybe you can do something like this(simple example)...

package 2D_Array_Handler is   -- Your package....
  type 2D_Array is record 
    x : integer;
    y : integer;
  end record;
  type 2D_Array_Ptr is access all 2D_Array;
  function Modify_2D_Array( Data_Ptr : 2D_Array_Ptr ) return Boolean;
end 2D_Array_Handler;

package body 2D_Array_Handler is  -- Your package
  function Add( Data_Ptr : 2D_Array_Ptr ) return Boolean is
  begin
    if Data_Ptr /= null then 
      Data.X := Data_Ptr.X + Some_X_Value...
      Data.Y := Data_Ptr.Y + Some_Y_Value...
      return TRUE;
    else
      return FALSE;
    end if;
  end Add;
end 2D_Array_Handler;

use 2D_Array_Handler;
declare   -- The calling procedure...
  My_Data_Ptr : 2D_Array_Ptr := new 2D_Array'( 0, 0 );
  bResult     : Boolean;
begin
  bResult := Add( My_Data_Ptr );
end;