Re: "Trip report: June 2025 ISO C++ standards meeting (Sofia,

On Wed, 25 Jun 2025 15:37:29 GMT
scott@slp53.sl.home (Scott Lurndal) gabbled:

Muttley@dastardlyhq.com writes:

On Wed, 25 Jun 2025 16:48:39 +0300
Michael S <already5chosen@yahoo.com> gabbled:

On Wed, 25 Jun 2025 08:47:23 -0000 (UTC)
Muttley@dastardlyhq.com wrote:
>

On Sun, 22 Jun 2025 19:37:39 -0500
Lynn McGuire <lynnmcguire5@gmail.com> gabbled:

"Trip report: June 2025 ISO C++ standards meeting (Sofia, Bulgaria)"
by Herb Sutter
 

>
https://herbsutter.com/2025/06/21/trip-report-june-2025-iso-c-standards-meet

in

g

-sofia-bulgaria/
>
"Today marks a turning point in C++: A few minutes ago, the C++
committee voted the first seven (7) papers for compile-time
reflection  

 
What for? What exactly does it bring to the table except more
complexity in an already overcomplex language?
 

>
Ability to serialize structures (for example, to JASON or XML) in generic

way.

>
I read something about that but it made no sense to me. Seemed to be a case
complex constexpr functions to do it with the fields and values hard coded
(obviously or no constexpr), but like most constexpressions IME, you can just
work out the result beforehand and hard code *that* instead.
>
Still, if the standards committee want to make the C++ learning curve for
beginners even steeper then they're going to succeed beyond their wildest
dreams. No wonder a lot of CS courses ditched C++ (and to be fair Java) a long

>

time a go and focused on Python.

>
Reflection was a useful feature in Java, I suspect that at least part
of the rationale for the addition to C++ is to match the corresponding
Java feature.
>
>
https://www.oracle.com/technical-resources/articles/java/javareflection.html

IIRC correctly the java version is runtime reflection, the C++ version will
be compile time which is utterly pointless. If the compiler knows whats there
at compile them then so do you and you can write your code accordingly.