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Niels Lohmann
574d98ad93
The macro changes the body of the initializer-list constructor and adds a to_json_tuple_impl overload, both with the same mangled names in either mode, so mixing translation units silently picked one definition. Encode it in the inline namespace as `_bics`, as JSON_USE_LEGACY_DISCARDED_VALUE_COMPARISON does with `_ldvcmp`. The macro is new in the unreleased 3.13.0, so no existing namespace name changes. - Move the macro's default into abi_macros.hpp so json_fwd.hpp computes the same namespace, and keep it defined under JSON_TEST_KEEP_MACROS. - Check the tag in the ABI config tests and in the unit test. - List `_bics` (and the missing `_dp`) in the namespace docs and in the natvis generator; regenerate nlohmann_json.natvis. - Replace the "define it consistently" warning with an ABI note. Suggested by @gregmarr in the review of #5544. Signed-off-by: Niels Lohmann <mail@nlohmann.me>