2 Tensor2<double, 3, 3> &t2_1,
const Tensor2<double, 3, 3> &t2_2,
3 const Tensor2<double, 3, 3> &t2_3,
4 Tensor2_symmetric<double, 3> &t2s_1,
5 const Tensor2_symmetric<double, 3> &t2s_2,
6 const Tensor2_symmetric<double, 3> &t2s_3,
7 Dg<double, 3, 3> &t3dg_1,
const Dg<double, 3, 3> &t3dg_2,
8 const Dg<double, 3, 3> &t3dg_3);
void test_T4ddg(Tensor1< double, 3 > &t1_1, const Tensor1< double, 3 > &t1_2, Tensor2< double, 3, 3 > &t2_1, const Tensor2< double, 3, 3 > &t2_2, const Tensor2< double, 3, 3 > &t2_3, Tensor2_symmetric< double, 3 > &t2s_1, const Tensor2_symmetric< double, 3 > &t2s_2, const Tensor2_symmetric< double, 3 > &t2s_3, Dg< double, 3, 3 > &t3dg_1, const Dg< double, 3, 3 > &t3dg_2, const Dg< double, 3, 3 > &t3dg_3)