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.
(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) |
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
.other | - | another exception object to copy |
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.
other | - | another exception object to assign with |
*this
.
virtual const char* what() const noexcept; | (since C++17) |
Returns the explanatory string.
(none).
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.
Implementations are allowed but not required to override what()
.
[virtual] | destroys the exception object (virtual public member function of std::exception ) |
[virtual] | returns an explanatory string (virtual public member function of std::exception ) |
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