## CGAL::Set_arity<F,a>

### Definition

The class Set_arity<F,a> is used to specify the type of a functor of type F whose arity has been set explicitly to a. The class is used in conjunction with the set_arity functions.

#include <CGAL/functional.h>

### Types

Set_arity<F,a>::Type
| the functor type.

### Notes

This class encapsulates the differences in implementation across various platforms. But in any case, Type refers to a model of AdaptableFunctor with arity a.

### See Also

CGAL::set_arity_0
CGAL::set_arity_1
CGAL::set_arity_2
CGAL::set_arity_3
CGAL::set_arity_4
CGAL::set_arity_5
AdaptableFunctor