* Make flatten() linear for ordered_json Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Use priority_tag instead of a C-style variadic overload in add_flattened clang-tidy flags the ellipsis fallback (cert-dcl50-cpp, modernize-avoid-variadic-functions). Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me>