bdlb::Variant_ReturnValueHelper< VISITOR > Struct Template Reference

#include <bdlb_variant.h>

Inheritance diagram for bdlb::Variant_ReturnValueHelper< VISITOR >:

Detailed Description

template<class VISITOR>
struct bdlb::Variant_ReturnValueHelper< VISITOR >

This struct is a component-private meta-function. Do not use. This meta-function checks whether the template parameter type VISITOR has the member ResultType defined using "SFINAE" (Substitution Failure Is Not An Error). A value of true indicates VISITOR::ResultType exists, and false otherwise.

Additional Inherited Members
Public Types inherited from bsl::integral_constant< bool, sizeof(Variant_ReturnValueHelper_Matcher::match< VISITOR >(0))==sizeof(Variant_ReturnValueHelper_YesType)>
typedef bool	value_type
typedef integral_constant	type
Public Member Functions inherited from bsl::integral_constant< bool, sizeof(Variant_ReturnValueHelper_Matcher::match< VISITOR >(0))==sizeof(Variant_ReturnValueHelper_YesType)>
	integral_constant ()=default
	integral_constant (const integral_constant &)=default
integral_constant	operator= (const integral_constant &)=default
	~integral_constant ()=default
	operator value_type () const
value_type	operator() () const
Static Public Attributes inherited from bsl::integral_constant< bool, sizeof(Variant_ReturnValueHelper_Matcher::match< VISITOR >(0))==sizeof(Variant_ReturnValueHelper_YesType)>
static const bool	value

---

The documentation for this struct was generated from the following file:

• bdlb_variant.h