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std::bad_expected_access(3) C++ Standard Libary std::bad_expected_access(3) NAME std::bad_expected_access - std::bad_expected_access Synopsis Defined in header <expected> template< class E > (1) (since C++23) class bad_expected_access : public std::bad_expected_access<void> template<> (2) (since C++23) class bad_expected_access<void> : public std::exception 1) Defines a type of object to be thrown by std::expected::value when accessing an expected object that contains an unexpected value. bad_expected_ac- cess<E> stores a copy of the unexpected value. 2) bad_expected_access<void> is the base class of all other bad_ex- pected_access specializations. This section is incomplete Reason: inheritance diagram Parameters (none) Return value Pointer to a null-terminated string with explanatory information. The string is suitable for conversion and display as a std::wstring. The pointer is guaranteed to be valid at least until the exception object from which it is ob- tained is destroyed, or until a non-const member function (e.g. copy assignment operator) on the exception object is called. Notes Implementations are allowed but not required to override what(). Members of the bad_expected_access<void> specialization constructor constructs a bad_expected_access<void> object (protected member function) destructor destroys the bad_expected_access<void> object (protected member function) operator= replaces the bad_expected_access<void> object (protected member function) what returns the explanatory string (public member function) Special member functions of bad_expected_access<void> are protected. They can only be called by derived classes. Example This section is incomplete Reason: no example Categories: * Todo with reason * Todo no example http://cppreference.com 2024.06.10 std::bad_expected_access(3)
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