[ Resolved by the adoption of P1946R0 in Belfast ]

[ 2019-11 Wednesday night issue processing - status to Open ]

Our preference is for CWG to fix this. JW to provide wording in case CWG cannot.

[ 2019-10-31 Issue Prioritization ]

Priority to 1 after reflector discussion.

All the defaulted operator==s in [cmp.categories] are currently specified as:

friend constexpr bool operator==(strong_ordering v, strong_ordering w) noexcept = default;

But the rule for defaulting operator== requires that the arguments be const&. All five should all look like:

friend constexpr bool operator==(const strong_ordering& v, const strong_ordering& w) noexcept = default;