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From: Jeffrey Carter <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: Renaming vs assignment to constant
Date: Fri, 06 Dec 2013 09:09:12 -0700
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Date: 2013-12-06T09:09:12-07:00
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On 12/06/2013 08:14 AM, Simon Wright wrote:
> A poster on Stack Overflow wrote
>
>     Now : Time renames Clock;
>
> (using Ada.Calendar) which made me blink until I realised that it is the
> equivalent of
>
>     Now : constant Time := Clock;
>
> GNAT generates the same code for these two forms. Is there a difference?
> Which form is preferred?

Some people are under the impression that a renaming is more "efficient". I 
prefer that things that are constant be explicitly declared as such.

-- 
Jeff Carter
"I was in love with a beautiful blonde once, dear.
She drove me to drink. That's the one thing I'm
indebted to her for."
Never Give a Sucker an Even Break
109