Hi SG10 and LWG, cpplearner points out in https://github.com/BRevzin/sd6/issues/1 that:
"Since unwrap_reference and unwrap_ref_decay are defined in <functional> ([functional.syn]), their feature test macro should also be defined there." P1902R1 adds this feature test macro in <type_traits> instead. I agree with them - I think the choice of <type_traits> was my mistake. Does anybody object to moving it to <functional>? Assuming no, what should the process of such a change involve? LWG issue? Barry
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