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from e79c9f0b2c0 * doc/invoke.texi (-Os): Add reference to -finline-functio [...] new 81bfe84b9bc PR libstdc++/87855 fix optional for types with non-trivial [...]

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Summary of changes: libstdc++-v3/ChangeLog | 51 ++++++ libstdc++-v3/include/std/optional | 177 ++++++++------------- .../testsuite/20_util/optional/assignment/8.cc | 20 ++- .../testsuite/20_util/optional/assignment/9.cc | 98 ++++++++++++ .../testsuite/20_util/optional/cons/value_neg.cc | 7 +- 5 files changed, 238 insertions(+), 115 deletions(-) create mode 100644 libstdc++-v3/testsuite/20_util/optional/assignment/9.cc