Why do C++ programmers are not interested in D?

[Ola Fosheim Grøstad]

On Sunday, 24 November 2019 at 13:47:42 UTC, Guillaume Piolat 
wrote:
> On Sunday, 24 November 2019 at 13:29:12 UTC, Ola Fosheim 
> Grøstad wrote:
>> C++ is seeing growth because it is regularly updated.
>
> By what metrics C++ would be growing? Because it doesn't seem

https://www.openhub.net/languages/compare?language_name%5B%5D=cpp&language_name%5B%5D=-1&measure=contributors

FWIW, C++ has always been a troubled language.

Cfront was slow.

After Cfront C++ compilers implemented C++ slightly differently 
so you could not easily write portable code.

After C++ was standardized compiler impementors had a hard time 
implementing all of it.

After most of it was implemented you'd still have to optimize 
your code in C-like manner as optimizers weren't on the level 
they are today. So you might start with something clean and end 
up with something you didn't like...

And you had to manage your own memory. And to use RAII you had 
write lots of verbose class descriptions.

Overall C++11/17/20 with clang/gcc is a much easier language to 
work with than C++ ever was. Everything is relative. But C++ has 
never been "clean". Ever.

D is clearly a much easier language to get started with in my 
opinion.

Although, if you read the C++ reddit, some C++ programmers claim 
that D is too similar to C++ to be worth the switch.  Maybe they 
are right, but D has much more room for making changes... C++'s 
backwards compatibility requirement is gridlocking the design 
space, so with every addition C++ is locked down more and more...