DIP: add Bit Fields

[Walter Bright]

On 3/9/2024 12:38 AM, Daniel N wrote:
> I guess it might be possible to make an even stronger guarantee, specifying that 
> the current behavior is how it must work on windows and unix in order to be 
> compliant with the D language spec. The same way we decided to define the common 
> practise for integer wrapping and two's complement.

I've thought about that, and it seemed more straightforward to simply rely on 
the specified behavior of the associated C compiler. It's like D doesn't specify 
how floating point arithmetic works, just that it conforms to IEEE754.