[Bug libstdc++/63860] Ill-formed std::pair::swap implementation?

[richard-gccbugzilla at metafoo dot co.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63860

Richard Smith <richard-gccbugzilla at metafoo dot co.uk> changed:

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--- Comment #4 from Richard Smith <richard-gccbugzilla at metafoo dot co.uk> ---
The proposed change looks correct to me. You'd need to also address the same
issue in std::array, std::priority_queue, std::stack, and std::queue (and in
the std::array variant in the debug and profile variants of libstdc++ too).