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boost::visitor_ptr — Returns a visitor object that adapts function pointers for use as a static visitor.
// In header: <boost/variant/visitor_ptr.hpp> template<typename R, typename T> visitor_ptr_t<T,R> visitor_ptr(R (*)(T));
Constructs and returns a
visitor_ptr_t adaptor over the
given function.
Returns: |
Returns a visitor_ptr_t
visitor object that, when applied, invokes the given
function. |
Throws: |
Will not throw. (Note, however, that the returned visitor object may throw when applied.) |