Path: csiph.com!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail
From: Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups: comp.lang.c++
Subject: Re: Template alias destructor call
Date: Mon, 27 Jan 2020 01:40:00 -0800
Organization: A noiseless patient Spider
Lines: 22
Message-ID: <86zhe9grv3.fsf@linuxsc.com>
References: <r09o3o$a96$1@dont-email.me> <r0bsc1$jsa$1@dont-email.me> <r0busk$24i$1@dont-email.me>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Injection-Info: reader02.eternal-september.org; posting-host="7c306968cf7022673062d49c54d79376"; logging-data="32427"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1/KAI63X9p8BVXMAUB+R7Hhatu+Q8M8xmE="
User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux)
Cancel-Lock: sha1:KIlyR4uR9AYwATFEqSEsxMdiOEA= sha1:XE1BpZvFlxbQ8en6xzOv0s7h1cA=
Xref: csiph.com comp.lang.c++:71618

Paavo Helde <myfirstname@osa.pri.ee> writes:

> [problems with x->~B<T>().]
>
> Thanks!  The typedef workaround indeed seems to work:
>
> template <typename T>
> void foo(B<T>* x) {
>     typedef B<T> B_t;
>     x->~B_t();
> }

Alternatively,

    template <typename T>
    void foo(B<T>* x) {
        using B_t = B<T>;
        x->~B_t();
    }

Don't take this as a complaint, it is simply an unabashed plug
for choosing 'using' over 'typedef' (my own personal preference).