cpp/ranges/enumerate view/sentinel

The return type of when the underlying view is not a.

The type is returned by the const-qualified overload. The type is returned by the non-const-qualified overload.

The name of this class template (shown here as ) is unspecified.

Data members
Typical implementations of hold only one non-static data member: a sentinel  (the name is for exposition purposes only) of type  (see below).