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We're missing noexcept on std::function::swap, and once LWG 2062 is resolved we'll be missing it on the non-member swap too. This adds it to both. PR libstdc++/77322 * doc/xml/manual/intro.xml: Document DR 2062 change. * include/std/functional (function::swap): Add noexcept. (swap(function<Res(Args...)&, function<Res(Args...)&)): Likewise. * testsuite/20_util/function/77322.cc: New test. Tested x86_64-linux, comitted to trunk.
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