virtualconstchar*std::exception::what()const[virtual],[noexcept],[inherited]
Returns a C-style character string describing the general cause of the current error.
Reimplemented in std::ios_base::failure, std::bad_alloc, std::bad_any_cast,
std::filesystem::filesystem_error, std::bad_weak_ptr, std::bad_function_call,
std::experimental::fundamentals_v1::bad_any_cast, std::experimental::filesystem::v1::filesystem_error,
std::future_error, std::logic_error, std::runtime_error, std::bad_exception, std::bad_cast,
std::bad_typeid, and std::bad_optional_access.