Re: [PATCH v2] mctp.7: Add man page for Linux MCTP support

["Alejandro Colomar (man-pages)" <alx.manpages@gmail.com>]

On 11/12/21 21:07, Alejandro Colomar (man-pages) wrote:
> 
> 
> On 11/12/21 20:40, G. Branden Robinson wrote:
>> At 2021-11-12T19:45:16+0100, Alejandro Colomar (man-pages) wrote:
>>> Also, we prevent some crazy programmers from relying on that padding
>>> byte being actually padding and not something else, even if it "must"
>>> be zero.  I've seen too much crazy stuff; programmers relying on
>>> undefined behavior just because "we don't plan to move from C++17 to
>>> C++20, so this is safe".
> 
> A more complete report of the horrifying story can be found here:
> <https://github.com/tcbrindle/span/issues/42#event-5473150481>
> 
> The code to which it refers is closed-source, so I can't link to it.
> But you can feel how wrong it was.
> It made use of a library that provided C20's std::span for older 
> standards, and has some specified behavior for what C20 regarded as UB. 
>   Guess what.

D'oh! C++20
-- 
Alejandro Colomar
Linux man-pages comaintainer; http://www.kernel.org/doc/man-pages/
http://www.alejandro-colomar.es/