Function test_1d

python/include/unsupported/test/cxx11_tensor_expr.cpp:17–67

using Eigen::RowMajor;

static void test_1d()
{
  Tensor<float, 1> vec1(6);
  Tensor<float, 1, RowMajor> vec2(6);

  vec1(0) = 4.0;  vec2(0) = 0.0;
  vec1(1) = 8.0;  vec2(1) = 1.0;
  vec1(2) = 15.0; vec2(2) = 2.0;
  vec1(3) = 16.0; vec2(3) = 3.0;
  vec1(4) = 23.0; vec2(4) = 4.0;
  vec1(5) = 42.0; vec2(5) = 5.0;

  float data3[6];
  TensorMap<Tensor<float, 1>> vec3(data3, 6);
  vec3 = vec1.sqrt();
  float data4[6];
  TensorMap<Tensor<float, 1, RowMajor>> vec4(data4, 6);
  vec4 = vec2.square();
  float data5[6];
  TensorMap<Tensor<float, 1, RowMajor>> vec5(data5, 6);
  vec5 = vec2.cube();

  VERIFY_IS_APPROX(vec3(0), sqrtf(4.0));
  VERIFY_IS_APPROX(vec3(1), sqrtf(8.0));
  VERIFY_IS_APPROX(vec3(2), sqrtf(15.0));
  VERIFY_IS_APPROX(vec3(3), sqrtf(16.0));
  VERIFY_IS_APPROX(vec3(4), sqrtf(23.0));
  VERIFY_IS_APPROX(vec3(5), sqrtf(42.0));

  VERIFY_IS_APPROX(vec4(0), 0.0f);
  VERIFY_IS_APPROX(vec4(1), 1.0f);
  VERIFY_IS_APPROX(vec4(2), 2.0f * 2.0f);
  VERIFY_IS_APPROX(vec4(3), 3.0f * 3.0f);
  VERIFY_IS_APPROX(vec4(4), 4.0f * 4.0f);
  VERIFY_IS_APPROX(vec4(5), 5.0f * 5.0f);

  VERIFY_IS_APPROX(vec5(0), 0.0f);
  VERIFY_IS_APPROX(vec5(1), 1.0f);
  VERIFY_IS_APPROX(vec5(2), 2.0f * 2.0f * 2.0f);
  VERIFY_IS_APPROX(vec5(3), 3.0f * 3.0f * 3.0f);
  VERIFY_IS_APPROX(vec5(4), 4.0f * 4.0f * 4.0f);
  VERIFY_IS_APPROX(vec5(5), 5.0f * 5.0f * 5.0f);

  vec3 = vec1 + vec2;
  VERIFY_IS_APPROX(vec3(0), 4.0f + 0.0f);
  VERIFY_IS_APPROX(vec3(1), 8.0f + 1.0f);
  VERIFY_IS_APPROX(vec3(2), 15.0f + 2.0f);
  VERIFY_IS_APPROX(vec3(3), 16.0f + 3.0f);
  VERIFY_IS_APPROX(vec3(4), 23.0f + 4.0f);
  VERIFY_IS_APPROX(vec3(5), 42.0f + 5.0f);
}

static void test_2d()
{