std::bad_any_cast
|
Defined in header
<any> |
||
|
class bad_any_cast : public std::bad_cast;
|
(since C++17) | |
Defines a type of object to be thrown by the value-returning forms of std::any_cast on failure.
Member functions
|
(constructor)
|
constructs a new bad_any_cast object(public member function) |
|
operator=
|
replaces the bad_any_cast object(public member function) |
|
what
|
returns the explanatory string (public member function) |
std::bad_any_cast::bad_any_cast
|
bad_any_cast() noexcept;
|
(1) | (since C++17) |
|
bad_any_cast( const bad_any_cast& other ) noexcept;
|
(2) | (since C++17) |
Constructs a new bad_any_cast object with an implementation-defined null-terminated byte string which is accessible through what().
*this and other both have dynamic type std::bad_any_cast then std::strcmp(what(), other.what()) == 0.Parameters
| other | - | another exception object to copy |
std::bad_any_cast::operator=
|
bad_any_cast& operator=( const bad_any_cast& other ) noexcept;
|
(since C++17) | |
Assigns the contents with those of other. If *this and other both have dynamic type std::bad_any_cast then std::strcmp(what(), other.what()) == 0 after assignment.
Parameters
| other | - | another exception object to assign with |
Return value
*this
std::bad_any_cast::what
|
virtual const char* what() const noexcept;
|
(since C++17) | |
Returns the explanatory string.
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 obtained 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().
Inherited from std::bad_cast
Inherited from std::exception
Member functions
|
[virtual]
|
destroys the exception object (virtual public member function of std::exception) |
|
[virtual]
|
returns an explanatory string (virtual public member function of std::exception) |