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From: Shark8 <onewingedshark@gmail.com>
Newsgroups: comp.lang.ada
Subject: Re: Properties
Date: Thu, 2 Dec 2010 21:00:41 -0800 (PST)
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Date: 2010-12-02T21:00:41-08:00
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On Dec 2, 2:57=A0am, Maciej Sobczak <see.my.homep...@gmail.com> wrote:
>
>Wrong (AARM Annex A, 3.a):
>
>"simultaneous calls to Text_IO.Put will work properly, so long
>as they are going to two different files. On the other hand,
>simultaneous output to the same file constitutes erroneous use
>of shared variables."
> --
> Maciej Sobczak *http://www.inspirel.com

Er, then does that mean that the following is wrong?

   Procedure Top is
      F : Ada.Text_IO.File_Type;
      I : Integer:=3D Positive'First;

      Task Type Writer(ID : Integer) is
      end Writer;

      Task Body Writer is
      begin -- Write the ID to the file.
         Ada.Text_IO.Put( Integer'Image(ID) );
      end Writer;

      Function Make_Task Return Writer is
      begin -- Make unique ID tasks.
         Return Result : Writer(ID =3D> I) do
            I:=3D I + 1;
         end return;
      end Make_Task;

      Type Task_Array is Array (1..20) of Access Writer;
      Tasks : Task_Array:=3D ( 1..20 =3D> New Writer'(Make_Task) );
   begin
      Null;      -- Everything happens by MAGIC!
   end top;