| 
    CGAL 5.1 - 2D and 3D Linear Geometry Kernel
    
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Functions | |
| template<typename Kernel > | |
| bool | CGAL::left_turn (const CGAL::Point_2< Kernel > &p, const CGAL::Point_2< Kernel > &q, const CGAL::Point_2< Kernel > &r) | 
returns true iff p, q, and r form a left turn.  More... | |
| bool CGAL::left_turn | ( | const CGAL::Point_2< Kernel > & | p, | 
| const CGAL::Point_2< Kernel > & | q, | ||
| const CGAL::Point_2< Kernel > & | r | ||
| ) | 
#include <CGAL/Kernel/global_functions.h>
returns true iff p, q, and r form a left turn.