From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on
	ip-172-31-74-118.ec2.internal
X-Spam-Level: 
X-Spam-Status: No, score=-0.0 required=3.0 tests=BAYES_20 autolearn=ham
	autolearn_force=no version=3.4.5-pre1
Path: eternal-september.org!reader02.eternal-september.org!.POSTED!not-for-mail
From: Paul Rubin <no.email@nospam.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Ada and "early return" - opinion/practice question
Date: Mon, 15 Mar 2021 12:05:03 -0700
Organization: A noiseless patient Spider
Message-ID: <87mtv4utk0.fsf@nightsong.com>
References: <38356aa9-b8b0-4e0b-a490-99e7b239d0b1n@googlegroups.com>
	<86eegge32o.fsf@stephe-leake.org>
	<077ed5ef-61c9-4178-a21c-e0955d5da12fn@googlegroups.com>
Mime-Version: 1.0
Content-Type: text/plain
Injection-Info: reader02.eternal-september.org; posting-host="4b578c364627d4ab9243657a1b501040";
	logging-data="19850"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/Ed20wTdSXr41NHFBU5UZE"
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux)
Cancel-Lock: sha1:CGu75qQ14pTDqB7FMr1W/ry7s2E=
	sha1:5g2vb9mJ7WEYTVvtwblM9etfBso=
Xref: reader02.eternal-september.org comp.lang.ada:61536
List-Id: <comp.lang.ada>

John McCabe <john@mccabe.org.uk> writes:
> In recent months, where I've been learning more and more about the ins
> and outs of "modern c++", I'm becoming more and more inclined to ditch
> it and use something where the language designers appear to want to
> address issues in a way that's consistent and relevant to their users'
> needs, rather than just fannying around to try to prove how clever
> they are.

It's a real improvement over old c++ despite the hacky stuff they had to
do to get it to work in the general framework of C++.  The notoriously
clumsy template error messages should improve some with the use of the
c++20 constraints (aka concepts) feature:

https://en.cppreference.com/w/cpp/language/constraints

The book "Effective Modern C++" by Scott Meyer is very good, but is a
few years old (C++17 or so, iirc) and doesn't include this newest stuff.

This also helps:

https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md