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Class template static_visitor

boost::static_visitor — Convenient base type for static visitors.


// In header: <boost/variant/static_visitor.hpp>

template<typename ResultType> 
class static_visitor {
  // types
  typedef ResultType result_type;  // Exposes result_type member as required by StaticVisitor concept.


Denotes the intent of the deriving class as meeting the requirements of a static visitor of some type. Also exposes the inner type result_type as required by the StaticVisitor concept.

Notes: static_visitor is intended for use as a base type only and is therefore noninstantiable.