Function cairo_sys::cairo_pattern_get_linear_points

pub unsafe extern fn cairo_pattern_get_linear_points(pattern: *mut cairo_pattern_t,
                                                     x0: *mut c_double,
                                                     y0: *mut c_double,
                                                     x1: *mut c_double,
                                                     y1: *mut c_double)
                                                     -> Status