17 Language support library [support]

17.7 Type identification [support.rtti]

17.7.4 Class bad_cast [bad.cast]

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namespace std { class bad_cast : public exception { public: // see [exception] for the specification of the special member functions const char* what() const noexcept override; }; }
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The class bad_cast defines the type of objects thrown as exceptions by the implementation to report the execution of an invalid dynamic_cast expression ([expr.dynamic.cast]).
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const char* what() const noexcept override;
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Returns: An implementation-defined ntbs.