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Niels Lohmann
03d3bc352e
GCC's -Weffc++ (an error in CI) asks a class with pointer members, a user constructor and a non-trivial destructor to declare its copy constructor and copy assignment; diff_frame's vector and basic_json members make its destructor non-trivial. Declare all five as defaulted, which also satisfies clang-tidy's special-member-functions check. Leave their exception specifications implicit: GCC 4.8 rejects an explicit one that differs from the implicit one, as it does for flatten_task in #5517. The converting constructor cannot throw, and is now declared noexcept for GCC's -Wnoexcept, which flags the emplace_back() under C++26 otherwise. The struct also moves from diff_iteratively() into the class, like dump_frame in the serializer. Signed-off-by: Niels Lohmann <mail@nlohmann.me>