From: Ivan Zakharyaschev <imz@altlinux.org>
To: ALT Linux Team development discussions <devel@lists.altlinux.org>
Subject: Re: [devel] re APT patch with impossible error on "Can't allocate an item of size zero"
Date: Tue, 18 Feb 2020 00:58:45 +0300 (MSK)
Message-ID: <alpine.LFD.2.20.2002180054210.6363@imap.altlinux.org> (raw)
In-Reply-To: <20200217213545.GA18365@altlinux.org>
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On Tue, 18 Feb 2020, Dmitry V. Levin wrote:
> > Да и попроще вызовы получаются.
> >
> > Ветка alloc-templates в
> > http://git.altlinux.org/people/imz/packages/apt.git
>
> Я всячески приветствую такой подход, и я всем советую static_assert.
> Но всё же static_assert(sizeof(T) > 0, "sizeof(T) == 0")
> выглядит чрезмерно пессимистичным.
А я думал, это весёлая шутка.
> Надо всё-таки очень сильно постараться, чтобы инстанцировать
> pkgCacheGenerator::AllocateInMap() классом нулевого размера.
В стандартном C++, как я понял, нельзя иметь структуры нулевого размера,
но в GNU-расширениях к C такое вроде есть, поэтому оставил на всякий
случай, чтобы ни у кого вопросов не было (а вдруг 0?).
--
Best regards,
Ivan
next prev parent reply other threads:[~2020-02-17 21:58 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-13 2:08 Ivan Zakharyaschev
2020-02-13 2:43 ` Ivan Zakharyaschev
2020-02-13 12:59 ` Aleksei Nikiforov
2020-02-13 14:10 ` Ivan Zakharyaschev
2020-02-13 17:05 ` Ivan Zakharyaschev
2020-02-17 8:41 ` Ivan Zakharyaschev
2020-02-17 14:05 ` Andrey Savchenko
2020-02-17 17:48 ` Ivan Zakharyaschev
2020-02-17 21:35 ` Dmitry V. Levin
2020-02-17 21:58 ` Ivan Zakharyaschev [this message]
2020-02-13 14:51 ` Ivan Zakharyaschev
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