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From: "Jeffrey R. Carter" <spam.jrcarter.not@spam.not.acm.org>
Newsgroups: comp.lang.ada
Subject: Re: Running a preprocessor from GPS?
Date: Sat, 1 Aug 2015 15:44:43 -0700
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Xref: news.eternal-september.org comp.lang.ada:27309
Date: 2015-08-01T15:44:43-07:00
List-Id: <comp.lang.ada>

On 08/01/2015 01:44 PM, EGarrulo wrote:
> 
> if Some_Condition then
>    -- Call operations of Singleton_Package
> end if;
> 
> translates directly to C++:
> 
> if (some_condition) {
>    // Call static operations of Singleton_Class.
> }
> 
> Where is the difference?  I don't see any.
> 
> Actually, I don't see anything esoteric about Ada packages.  I have insisted on
> a Get_Instance function because otherwise the Singleton pattern wouldn't be any
> different from global variables (or static class members).

Here you've lost me again. A singleton is some hidden state and some operations
that use that state. If it can be as simple as calling static operations of a
class, then why do you and the DP book insist on all the complications? If the
complications are necessary, how can it be that simple?

-- 
Jeff Carter
"I don't know why I ever come in here. The
flies get the best of everything."
Never Give a Sucker an Even Break
102