* 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>
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Signed-off-by: Niels Lohmann <mail@nlohmann.me>