20 General utilities library [utilities]

20.8 Storage for any type [any]

20.8.3 Class bad_­any_­cast [any.bad.any.cast]

class bad_any_cast : public bad_cast { public: // see [exception] for the specification of the special member functions const char* what() const noexcept override; };
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Objects of type bad_­any_­cast are thrown by a failed any_­cast.
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const char* what() const noexcept override;
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Returns: An implementation-defined ntbs.