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## CGAL::Is_negative<NT>

### Definition

The function Is_negative<NT> determines if a value is negative or not.

#include <CGAL/number_utils_classes.h>

### Is Model for the Concept

AdaptableFunctor

bool | f ( NT ntval) | returns true if ntval is negative and false otherwise.

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The CGAL Project . Tue, December 21, 2004 .