pub unsafe extern "C" fn graphene_point_distance(
a: *const graphene_point_t,
b: *const graphene_point_t,
d_x: *mut c_float,
d_y: *mut c_float,
) -> c_float
pub unsafe extern "C" fn graphene_point_distance(
a: *const graphene_point_t,
b: *const graphene_point_t,
d_x: *mut c_float,
d_y: *mut c_float,
) -> c_float