std::bad_any_cast
Defined in header <any> |
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(since C++17) |
Defines a type of object to be thrown by the value-returning forms of std::any_cast on failure.
Member functions
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(constructor)
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constructs a new bad_any_cast object (public member function) |
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operator=
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replaces the bad_any_cast object (public member function) |
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what
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returns the explanatory string (public member function) |
std::bad_any_cast::bad_any_cast
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(1) | (since C++17) |
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(2) | (since C++17) |
Constructs a new bad_any_cast object with an implementation-defined null-terminated byte string which is accessible through what().
1) Default constructor.
2) Copy constructor. If
*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=
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(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
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(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
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[virtual]
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destroys the exception object (virtual public member function of std::exception) |
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[virtual]
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returns an explanatory string (virtual public member function of std::exception) |
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