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## CGAL::Is_vacuously_valid<Traits>

### Definition

Function object class that indicates all sequences of points are valid.

#include <CGAL/polygon_function_objects.h>

### Is Model for the Concept

PolygonIsValid

### Creation

Is_vacuously_valid<Traits> f ( Traits t);

### Operations

template<class InputIterator>
bool | f ( InputIterator first, InputIterator beyond)
|  | returns true.

### See Also

CGAL::partition_is_valid_2
CGAL::Partition_is_valid_traits_2<Traits, PolygonIsValid>

### Implementation

This test requires O(1) time.

Next: Is_y_monotone_2<Traits>

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The CGAL Project . Tue, December 21, 2004 .