pub unsafe extern "C" fn graphene_point3d_init_from_point(
p: *mut graphene_point3d_t,
src: *const graphene_point3d_t,
) -> *mut graphene_point3d_t
pub unsafe extern "C" fn graphene_point3d_init_from_point(
p: *mut graphene_point3d_t,
src: *const graphene_point3d_t,
) -> *mut graphene_point3d_t