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#include <iostream>
#include <CGAL/Simple_cartesian.h>
typedef CGAL::Simple_cartesian<double> Kernel;
typedef Kernel::Point_2 Point_2;
int main()
{
{
Point_2 p(0, 0.3), q(1, 0.6), r(2, 0.9);
std::cout << (CGAL::collinear(p,q,r) ? "collinear\n" : "not collinear\n");
}
{
Point_2 p(0, 1.0/3.0), q(1, 2.0/3.0), r(2, 1);
std::cout << (CGAL::collinear(p,q,r) ? "collinear\n" : "not collinear\n");
}
{
Point_2 p(0,0), q(1, 1), r(2, 2);
std::cout << (CGAL::collinear(p,q,r) ? "collinear\n" : "not collinear\n");
}
return 0;
}
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