CGAL::left_turn()

See also

CGAL::collinear()

CGAL::orientation()

CGAL::right_turn()

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.