17 Language support library [support] (original) (raw)

17.7 Type identification [support.rtti]

17.7.3 Class bad_­cast [bad.cast]

namespace std { class bad_cast : public exception { public: // see [exception] for the specification of the special member functions const char* what() const noexcept override; }; }

The classbad_­castdefines the type of objects thrown as exceptions by the implementation to report the execution of an invaliddynamic_­castexpression ([expr.dynamic.cast]).

const char* what() const noexcept override;

Returns:An implementation-defined ntbs.