This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 116a. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2024-12-19
[Accepted at the February, 2022 meeting.]
According to 11.4.10 [class.bit] paragraph 1,
A bit-field shall have integral or enumeration type
This apparently does not allow for cv-qualification in a bit-field type.
Notes from the December, 2021 meeting:
As of N4901, there is no longer an issue regarding the integral types; 6.8.2 [basic.fundamental] paragraph 11 says,
The character types, bool, the signed and unsigned integer types, and cv-qualified versions (6.8.5 [basic.type.qualifier]) thereof, are collectively termed integral types.
Proposed resolution (December, 2021):
A bit-field shall have integral or (possibly cv-qualified) enumeration type