pantry/projects/cgal.org/surprise.cpp

#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Triangulation_2.h>
#include <CGAL/draw_triangulation_2.h>
#include <CGAL/basic.h>
#include <CGAL/Coercion_traits.h>
#include <CGAL/IO/io.h>
#include <fstream>
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Triangulation_2<K> Triangulation;
typedef Triangulation::Point Point;

template <typename A, typename B>
typename CGAL::Coercion_traits<A, B>::Type
binary_func(const A &a, const B &b)
{
    typedef CGAL::Coercion_traits<A, B> CT;
    CGAL_static_assertion((CT::Are_explicit_interoperable::value));
    typename CT::Cast cast;
    return cast(a) * cast(b);
}

int main(int argc, char **)
{
    std::cout << binary_func(double(3), int(5)) << std::endl;
    std::cout << binary_func(int(3), double(5)) << std::endl;
    std::ifstream in("data/triangulation_prog1.cin");
    std::istream_iterator<Point> begin(in);
    std::istream_iterator<Point> end;
    Triangulation t;
    t.insert(begin, end);
    if (argc == 3) // do not test Qt5 at runtime
        CGAL::draw(t);
    return EXIT_SUCCESS;
}