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* Do not throw in contains() for an empty array reference token json_pointer::contains() rejected malformed array indices, but an empty reference token (e.g. "/a/" where "a" is an array, or "/" on an array) passed every check and reached array_index(), which throws out_of_range.404. contains() must not throw (cf. #5395), so it now returns false for an empty token. at() still throws out_of_range.404. Signed-off-by: Niels Lohmann <mail@nlohmann.me> * Fix CI: bind j_nested_const by reference in the json_pointer test clang-tidy (ci_clang_tidy) flagged the new test with performance-unnecessary-copy-initialization: the local copy j_nested_const of j_nested is never modified. Bind it as a const reference instead; it still exercises the const overloads of at() and contains(). Signed-off-by: Niels Lohmann <mail@nlohmann.me> --------- Signed-off-by: Niels Lohmann <mail@nlohmann.me>