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Niels Lohmann
17d6fa753b
The three container types in the new tests inherited every constructor of their base with using Base::Base. That asks for more than the test needs: the library builds an object or an array by default construction, by copy or move, and -- when converting between two basic_json types or from an initializer list -- from an iterator range. Declaring those directly makes the requirement visible in the test, and keeps object types out of a corner where a compiler has to declare std::map's whole constructor set for a derived class while basic_json is still incomplete. Signed-off-by: Niels Lohmann <mail@nlohmann.me>