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## CGAL::Sgn<NT>

### Definition

The function object class Sgn<NT> computes the sign of a number. It is named Sgn to avoid a conflict with the type Sign.

#include <CGAL/number_utils_classes.h>

### Is Model for the Concept

AdaptableFunctor

Sign | f ( NT ntval) | returns the sign: POSITIVE, ZERO, or NEGATIVE.

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The CGAL Project . Tue, December 21, 2004 .