Function any_cast
boost::any_cast —
Custom keyword cast for extracting a value
of a given type from an
any.
Synopsis
template<typename T> T any_cast(any & operand);
template<typename T> T any_cast(const any & operand);
template<typename ValueType> const ValueType * any_cast(const any * operand);
template<typename ValueType> ValueType * any_cast(any * operand);
Description
|
Returns: |
If passed a pointer, it returns a
similarly qualified pointer to the value content if
successful, otherwise null is returned.
If T is ValueType, it returns a copy of the held value, otherwise, if T is a reference
to (possibly const qualified) ValueType, it returns a reference to the held
value. |
|
Throws: |
Overloads taking an
any pointer do not
throw; overloads taking an
any value or reference
throws bad_any_cast if
unsuccessful. |
