I don't understand betterC

[evilrat]

On Saturday, 2 September 2023 at 03:27:51 UTC, confused wrote:
> So I guess my next question is why, exactly, classes *can*, in 
> fact, be implemented in ``` betterC ```, but are not?

IIRC you can have extern(C++) classes in betterC, the real issue 
is the plain extern(D) classes which has some assumptions that 
are not present in betterC runtime.
Be careful though as extern(C++) classes have a bit different 
behavior where you might not expect it.
Specifically they have different vtable layout and some quirks 
with regard to multiple inheritance which is not available in D.
They might have some different destructor logic, and maybe there 
is more...

Otherwise you will have to mimic "classes" behavior with some 
template magic, just like OOP in C similar to COM model or gtk 
gobject, this means no fancy keyword and no language support for 
them though. But with all the templates and CTFE this shouldn't 
be a problem.

Also if you have read this forums regarding betterC... well, I 
think its only valid real use cases are tiny microcontrollers and 
WebAsm (because of GC), but the latter case can probably avoided 
with custom D runtime and people in fact has crafted some custom 
implementations.