From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00
	autolearn=unavailable autolearn_force=no version=3.4.4
Path: 
 eternal-september.org!reader01.eternal-september.org!reader02.eternal-september.org!feeder.eternal-september.org!aioe.org!.POSTED!not-for-mail
From: Luke A. Guest <laguest@archeia.com>
Newsgroups: comp.lang.ada
Subject: Re: Why are Ada compilers difficult to write ?
Date: Wed, 20 Jun 2018 19:58:53 +0100
Organization: Aioe.org NNTP Server
Message-ID: <1879145989.551211041.811077.laguest-archeia.com@nntp.aioe.org>
References: <584564c2-9f64-4965-b045-535cdaf899c0@googlegroups.com>
 <pgdtbd$7pd$1@dont-email.me>
 <7cb22c58-3009-47f0-8fe7-62f3cd61785d@googlegroups.com>
NNTP-Posting-Host: KvIXG7G4heKhWG0uA2EtRg.user.gioia.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-Complaints-To: abuse@aioe.org
User-Agent: NewsTap/5.3.1 (iPhone/iPod Touch)
X-Notice: Filtered by postfilter v. 0.8.3
Cancel-Lock: sha1:Ew6mSxp8lUBBTiPfm9dkVj9Iw8s=
Xref: reader02.eternal-september.org comp.lang.ada:53211
Date: 2018-06-20T19:58:53+01:00
List-Id: <comp.lang.ada>

Dan'l Miller <et> wrote:

>> * Tasks
> 
> So does C++17.
> 
>> * Protected types and objects
> 
> So does C++98.
>

Hardly. You can’t compare Ada’s high level tasking to the thin veneer over
threading that’s in C++. Come on.


>> * Discriminants
>> * Elaboration

Oh I forgot that doctors and stir sections are equivalent to Ada’s
elaboration. Those sections just call the constructors and destructors.m,
it’s very primitive. You also can’t do complex initialisations in C++ like
in Ada.


> * Moderately generous reflection via 'Tags

Pick any C++ lib which hasn’t reimplemented this!


> * Numerous aspects (historically standardized as pragmas)
> 
> So does C++11, C++14, and C++17.

Really? Which?