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from 3907147aa9b testsuite: Fix up g++.dg/ext/int128-8.C testcase [PR109560] new a5a03ea09dd libstdc++: Use emplace in std::variant::operator=(T&&) as p [...] new 21e5ee580b5 libstdc++: Apply small fix from LWG 3843 to std::expected new 813cc7304c1 libstdc++: Fix assigning nullptr to std::atomic<shared_ptr< [...] new df4275e7565 libstdc++: Remove unconditional -pthread from test options new 24cf9f4c6f4 libstdc++: Do not use facets cached in ios for ALT128 build [...] new 400f1655672 libstdc++: Define std::sub_match::swap member function (LWG 3204) new e016a6ddbf0 libstdc++: Fix outdated docs about demangling exception messages new 2e4210698c6 libstdc++: Avoid bogus warning in std::vector::insert [PR107852]

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Summary of changes: libstdc++-v3/doc/html/manual/ext_demangling.html | 13 +---- libstdc++-v3/doc/xml/manual/extensions.xml | 13 +---- libstdc++-v3/include/bits/istream.tcc | 15 ++++++ libstdc++-v3/include/bits/ostream.tcc | 5 ++ libstdc++-v3/include/bits/regex.h | 10 ++++ libstdc++-v3/include/bits/shared_ptr_atomic.h | 6 +++ libstdc++-v3/include/bits/vector.tcc | 63 +++++++++++++--------- libstdc++-v3/include/std/expected | 3 +- libstdc++-v3/include/std/variant | 4 +- .../20_util/shared_ptr/atomic/atomic_shared_ptr.cc | 9 ++++ libstdc++-v3/testsuite/20_util/variant/lwg3585.cc | 16 ++++++ .../testsuite/28_regex/sub_match/lwg3204.cc | 38 +++++++++++++ .../testsuite/30_threads/jthread/jthread.cc | 2 +- 13 files changed, 146 insertions(+), 51 deletions(-) create mode 100644 libstdc++-v3/testsuite/20_util/variant/lwg3585.cc create mode 100644 libstdc++-v3/testsuite/28_regex/sub_match/lwg3204.cc