[cxx-abi-dev] Long bitfields in PODs

[Daveed Vandevoorde]

On Wednesday, May 14, 2003, at 03:28  PM, Jason Merrill wrote:
[...]
> I'd just add a note mentioning that since C doesn't have large 
> bitfields,
> they are handled by the rules elsewhere in the ABI.

Yes, but those rules live in a context of non-POD layout.
I.e., it's hard to specify that one (overlong bit) field
is laid out according to algorithm A while the others
are laid out according to algorithm B, because these
algorithms need to update their state for every field
allocation.

I think for the specification to make sense, the easiest
is Mark's suggestion: If a POD struct contains an overlong
bit field, use the non-POD algorithm to compute its layout.

	Daveed