## CGAL::Field_tag

### Definition

The class Field_tag is used as a tag in some algorithms. It indicates that a number type is to be considered as a model for FieldNumberType. Only operations defined for FieldNumberType are used. For example, no squareroot operations are computed, even if the number type as such supports squareroots.

#include <CGAL/Number_type_traits.h>

### See Also

FieldNumberType
Ring_tag
Euclidean_ring_tag
Sqrt_field_tag