31     _point *O;  in create_line_with_argument()
36     O = POP(_point);  in create_line_with_argument()
44     _point *A, *B;  in create_line_with_points()
47     B = POP(_point);  in create_line_with_points()
48     A = POP(_point);  in create_line_with_points()
59     _point *O;  in create_line_with_vector()
65     O = POP(_point);  in create_line_with_vector()
75     _point *A, *B;  in create_line_with_segment()
146     _point *O;  in create_parallel_to_line()
149     O = POP(_point);  in create_parallel_to_line()
161     _point *O, *A, *B;  in create_parallel_to_segment()
164     O = POP(_point);  in create_parallel_to_segment()
178     _point *O;  in create_perpendicular_to_line()
181     O = POP(_point);  in create_perpendicular_to_line()
193     _point *O, *A, *B;  in create_perpendicular_to_segment()
197     O = POP(_point);  in create_perpendicular_to_segment()
213     _point *A, *B;  in create_perpendicular_bisector()
231     _point *A, *B, *C;  in create_angle_bisector()
234     C = POP(_point);  in create_angle_bisector()
235     B = POP(_point);  in create_angle_bisector()
236     A = POP(_point);  in create_angle_bisector()
277     _point *A, *B, *C;  in create_altitude()
281     C = POP(_point);  in create_altitude()
282     B = POP(_point);  in create_altitude()
283     A = POP(_point);  in create_altitude()
294     _point *A, *B, *C;  in create_median()
298     C = POP(_point);  in create_median()
299     B = POP(_point);  in create_median()
300     A = POP(_point);  in create_median()
346     _point *O;  in symetric_line()
349     O = POP(_point);  in symetric_line()
360     _point *O;  in rotate_line()
365     O = POP(_point);  in rotate_line()
380     _point *O;  in homothetic_line()
385     O = POP(_point);  in homothetic_line()
398     _point *A;  in point_line_distance()
402     A = POP(_point);  in point_line_distance()