Re: C++11 move constructors

[Murray Cumming <murrayc murrayc com>]

On Wed, 2013-06-26 at 11:33 +0100, Reece Dunn wrote:


> In the server_without_bus example, the type is changed from
> `Glib::ustring` to `char *` in:
>
> -static Glib::ustring introspection_xml =
> +static auto introspection_xml =
>      "<node>"

I guess it should be const auto. But otherwise, the change seems good to
me. We don't actually use the ustring API on that.

> auto should only be used:
>
>   1/  if it is shorter (e.g. std::unordered_map<Glib::ustring,
> Glib::ustring>::const_iterator)
>
>   2/  if the deduced type matches the variable type
>
>  
>
> e.g. declaring the `GPid` type `auto` does not buy you anything in
> terms of improved readability.

It avoids the person having to think about the actual type name, which
seems useful, though I guess it's a matter of taste. My opinion about
that changes day to day.

Is there any official discouragement from using it in this way?

>         Is there anything else simple that we could do there?
>
>
> 1.  right-angle brackets (`>>` instead of `> >`)
>
> 2.  static_assert
>
> 3.  nullptr
>
> 4.  defaulted/deleted functions (e.g. for nocopy objects)

Thanks.


-- 
Murray Cumming
murrayc murrayc com
www.murrayc.com
www.openismus.com