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Re: Default assignment operators from copy/move constructors

From: Nevin Liber <nevin_at_[hidden]>
Date: Thu, 6 Aug 2020 15:57:37 -0500
Is this a bot? You posted the same thing in 2018.

https://groups.google.com/a/isocpp.org/g/std-proposals/c/5BxOQpYzRB4/m/82lMYsJWBQAJ

On Thu, Aug 6, 2020 at 3:49 PM Walt Karas via Std-Proposals <
std-proposals_at_[hidden]> wrote:

> If a class C has a copy constructor, seems desirable to generate a default
> copy assign like:
>
>
> C & operator = (C const &rhs)
> {
> if (this != &rhs)
> {
>
> this->~C();
> ::new (this) C(rhs);
> }
> return *this;
> }
>
>
> Likewise for default move assign when move copy is defined:
>
>
> C & operator = (C &&rhs)
>
> {
> if (this != &rhs)
> {
>
> this->~C();
> ::new (this) C(std::move(rhs));
> }
> return *this;
> }
>
>
> --
> Std-Proposals mailing list
> Std-Proposals_at_[hidden]
> https://lists.isocpp.org/mailman/listinfo.cgi/std-proposals
>


-- 
 Nevin ":-)" Liber  <mailto:nevin_at_[hidden]>  +1-847-691-1404

Received on 2020-08-06 16:01:35