Let's get the semantic around closure fixed.

[Ola Fosheim Grostad]

On Thursday, 20 May 2021 at 12:10:31 UTC, Adam D. Ruppe wrote:
> It would be kinda cool if the compiler would magically pack 
> small types into that void* sometimes. Since it is opaque to 
> the caller it could actually pack in a captured int or two 
> right there and be a by-value delegate.

Yes, what C++ lacks is a way to type a lambda (function object) 
before it is defined. A solution could be to have a way to say: 
this delegate should be able to hold 2 ints and 1 double, then it 
would have buffer space for that and there wold be no need to 
allocate. Libraries could provide aliases that are shorter, 
obviously.