On Thu, 31 Jul 2025, 20:36 Nevin Liber via SG10, <sg10@lists.isocpp.org> wrote:

On Thu, Jul 31, 2025 at 1:12 PM Alexander Kremer via SG10 <sg10@lists.isocpp.org> wrote:

Dear SG10,

I recently presented this paper (https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p3798r0.html) to the BSI panel and was advised to check with SG10 whether we need to add a feature test macro for the change we are proposing. Please share your opinion and thank you in advance.

I would expect it to bump up the value of __cpp_lib_expected.

Yes definitely