27                   float x3, float y3,  in curve4_points()
35         cp[5] = y3;  in curve4_points()
41               float x3, float y3,  in init()
49         cp[5] = y3;  in init()
70                float x3, float y3,  in curve4_div()  argument
74         init(x1, y1, x2, y2, x3, y3, x4, y4);  in curve4_div()
88               float x3, float y3,
126                 float x3, float y3,
130                           float x3, float y3,
144            float x3, float y3,  in curve4()  argument
147         init(x1, y1, x2, y2, x3, y3, x4, y4);  in curve4()
159               float x3, float y3,  in init()  argument
162         m_curve_div.init(x1, y1, x2, y2, x3, y3, x4, y4);  in init()