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[gilou_66 <>]

Hello,

I have inserted these lines in my Project :

 /// Construct the two input polygons.
     Polygon_2 P;
     P.push_back (Point_2 (0, 0));
     P.push_back (Point_2 (5, 0));
     P.push_back (Point_2 (3.5, 1.5));
     P.push_back (Point_2 (2.5, 0.5));
     P.push_back (Point_2 (1.5, 1.5));
     std::cout << "P = "; print_polygon (P);
     Polygon_2 Q;
     Q.push_back (Point_2 (0, 2));
     Q.push_back (Point_2 (1.5, 0.5));
     Q.push_back (Point_2 (2.5, 1.5));
     Q.push_back (Point_2 (3.5, 0.5));
     Q.push_back (Point_2 (5, 2));
     std::cout << "Q = "; print_polygon (Q);

     // Compute the difference of P and Q.
     Pwh_list_2 intR;
     Pwh_list_2::const_iterator it;
     CGAL::difference (P, Q, std::back_inserter(intR));

     std::cout << "The difference:" << std::endl;
     for (it = intR.begin(); it != intR.end(); ++it) {
     std::cout << "--> ";
     print_polygon_with_holes (*it);
     }/

...and I get compiling error :

no match for 'operator=' (operand types are
'std::back_insert_iterator<std::list&lt;CGAL::Polygon_with_holes_2&lt;CGAL::Epick>
> >'.....

Any clue ?







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