Why is D unpopular?

[Ola Fosheim Grøstad]

On Thursday, 12 May 2022 at 21:36:40 UTC, Walter Bright wrote:
> On 5/12/2022 11:10 AM, H. S. Teoh wrote:
>> There's also macro functions that
>> sometimes crop up in complex C headers. Those are hard to 
>> automatically
>> translate; some cases may need inline functions, some involve
>> token-pasting and may not be translatable without human 
>> intervention.
>
> All true. If a .h file uses preprocessor for metaprogramming, 
> there's no way to make that work in D.

It should be possible most of the time, as macros in most cases 
expands to counterparts in the C grammar. You also have to 
support _Generic. It is by and large a matter of aligning D 
semantics with C, and that is not a far fetched goal.

If such things are not supported then the utility is so limited 
that it might be better to drop import-C. People generally dont 
want to deal with 90% solutions (only the most hardcore users 
want that).