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NNTP-Posting-Date: Sun, 16 Oct 2005 21:37:28 -0500
From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Newbie: Task parametering
References: <1129510387.675070.134750@g14g2000cwa.googlegroups.com>
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Date: Sun, 16 Oct 2005 21:37:28 -0500
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Xref: g2news1.google.com comp.lang.ada:5735
Date: 2005-10-16T21:37:28-05:00
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> type Task_Data is
>        record
>        Name : aliased String(1..8);
 and
>   type Data_Handle is access Task_Data; -- used to point to its data
Things of type Data_Handle point to heap-allocated objects (it says
"is access" not "is access all"), so you don't need any "aliased".

>     Data_For_Task := new Task_Data;
>     Data_For_Task.Name := "Task A  ";
>     Data_For_Task.Period := 0.5;
>     Data_For_Task.Repetitions := 5;
  Data_For_Task := new Task_Data("Task A  ", 0.5, 5);
or, more explicitly
  Data_For_Task := new Task_Data(
    (Name => "Task A  ", Period => 0.5, Repetitions => 5);
Besides being shorter, these have the advantage over multiple assignment
statements that the compiler will tell you if you left something out.