From: "G.B." <bauhaus@notmyhomepage.invalid>
Subject: Re: renames usage
Date: Sat, 2 Jan 2021 17:00:13 +0100 [thread overview]
Message-ID: <rsq5ae$1ls$1@dont-email.me> (raw)
In-Reply-To: <5fef180c$0$19476$426a74cc@news.free.fr>
On 01.01.21 13:39, DrPi wrote:
> Reading all the answers, I understand that :
> X : Float renames Random (Seed);
> is equivalent to :
> X : constant Float := Random (Seed);
>
> Right ?
Also remember that limited types do not permit copying,
whether constant or not. Renaming avoids having to move
an object at all:
procedure Hammering is
type Hammer is (Claw, Sledge);
task type Nail is -- A limited type
entry Hit (Weight : Hammer);
end Nail;
task body Nail is separate;
procedure Game is
type Nail_Reference is access Nail;
Challenge : array (1 .. 10) of Nail_Reference
:= (others => new Nail);
function Random_Pick return Nail_Reference is
begin
return Challenge (2);
end Random_Pick;
Choice : Nail renames Random_Pick.all;
begin
Choice.Hit (Weight => Claw);
end Game;
begin
Game;
end Hammering;
next prev parent reply other threads:[~2021-01-02 16:00 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-31 11:48 renames usage DrPi
2020-12-31 12:10 ` John Perry
2020-12-31 13:31 ` DrPi
2020-12-31 12:33 ` Gautier write-only address
2020-12-31 14:49 ` Jeffrey R. Carter
2020-12-31 15:55 ` DrPi
2020-12-31 18:48 ` Dmitry A. Kazakov
2021-01-01 12:39 ` DrPi
2021-01-01 13:20 ` Dmitry A. Kazakov
2021-01-02 11:53 ` DrPi
2021-01-01 14:46 ` Jeffrey R. Carter
2021-01-02 11:55 ` DrPi
2021-01-03 3:19 ` Randy Brukardt
2021-01-03 10:05 ` Jeffrey R. Carter
2021-01-06 2:49 ` Randy Brukardt
2021-01-02 16:00 ` G.B. [this message]
2021-01-02 17:22 ` Simon Wright
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