> Sent: Thursday, November 01, 2018 at 3:44 PM
> From: "Giuseppe D'Angelo" <[email protected]>
> To: "Jason H" <[email protected]>
> Cc: [email protected]
> Subject: Re: [Interest] Qt API annoyances: where to log/discuss?
>
> Il 31/10/18 21:59, Jason H ha scritto:
> > Thanks Giuseppe! That's getting closer :-) however the expression boggles
> > my mind. "originals | ranges::view::transform" there's a lot of compiler
> > voodoo there. I'm trying to keep up on all the C++0xYZ developments, and
> > still trying to wrap my head around SFINAE. I had to look up CTAD, and that
> > looks like a very good enhancement. I think Qt should hide a lot of that
> > compiler iteration from me ;-)
>
> You can replace Qt with "the libraries I use". They will hide the
> complexity of compiler magic from you (where do you _see_ the magic in
> the lines I pasted?).
>
> And every time you use C++ you have the Standard Library with you, which
> (crossing fingers) will have ranges in C++2a; why should Qt spend any
> time at all implementing something like that?
>
> If anything, this means that QImage should be adapted to be usable
> through ranges (!).
>
>
> > It is an unfortunate phenomenon that I am spending more time decrypting
> > compiler Voodoo.
>
> Sorry, I don't get this. If you're just using the features, why would
> you care about they're implemented? What's there to decrypt?
>
> Just rest assured that any feature coming from the Standard Library
> comes from the very same people building your compiler, so it will get
> implemented in the best way possible.
originals | ranges::view::transform([](int i) { return i * 3; });
The bitwise OR operator, descending multiple namespaces.
It makes my point. That these very common functional programming paradigms
(map, reduce, etc) are (needlessly?) obtuse in C++.
Further more, my point is made qgain with this talk about C++2a. It's something
that can be done now, but i shouldn't have to wait, Qt can implement these
however it can today and move to ranges when available.
> Cheers,
> --
> Giuseppe D'Angelo | [email protected] | Senior Software Engineer
> KDAB (France) S.A.S., a KDAB Group company
> Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
> KDAB - The Qt, C++ and OpenGL Experts
>
>
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