text: //*****************************************************************************
  // Copyright 2017-2019 Intel Corporation
  //
  // Licensed under the Apache License, Version 2.0 (the "License");
  // you may not use this file except in compliance with the License.
  // You may obtain a copy of the License at
  //
  //     http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing, software
  // distributed under the License is distributed on an "AS IS" BASIS,
  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  // See the License for the specific language governing permissions and
  // limitations under the License.
  //*****************************************************************************
  
  #include <iostream>
  
  #include <ngraph/ngraph.hpp>
  
  using namespace ngraph;
  
  int main()
  {
      // Build the graph
      Shape s{2, 3};
      auto a = std::make_shared<op::Parameter>(element::f32, s);
      auto b = std::make_shared<op::Parameter>(element::f32, s);
      auto c = std::make_shared<op::Parameter>(element::f32, s);
  
      auto t0 = std::make_shared<op::Add>(a, b);
      auto t1 = std::make_shared<op::Multiply>(t0, c);
  
      // Make the function
      auto f = std::make_shared<Function>(OutputVector{t1},
                                          ParameterVector{a, b, c});
  
      // Create the backend
      auto backend = runtime::Backend::create("CPU");
  
      // Allocate tensors for arguments a, b, c
      auto t_a = backend->create_tensor(element::f32, s);
      auto t_b = backend->create_tensor(element::f32, s);
      auto t_c = backend->create_tensor(element::f32, s);
      // Allocate tensor for the result
      auto t_result = backend->create_tensor(element::f32, s);
  
      // Initialize tensors
      float v_a[2][3] = {{1, 2, 3}, {4, 5, 6}};
      float v_b[2][3] = {{7, 8, 9}, {10, 11, 12}};
      float v_c[2][3] = {{1, 0, -1}, {-1, 1, 2}};
  
      t_a->write(&v_a, 0, sizeof(v_a));
      t_b->write(&v_b, 0, sizeof(v_b));
      t_c->write(&v_c, 0, sizeof(v_c));
  
      // Invoke the function
      auto exec = backend->compile(f);
      exec->call({t_result}, {t_a, t_b, t_c});
  
      // Get the result
      float r[2][3];
      t_result->read(&r, 0, sizeof(r));
  
      std::cout << "[" << std::endl;
      for (size_t i = 0; i < s[0]; ++i)
      {
          std::cout << " [";
          for (size_t j = 0; j < s[1]; ++j)
          {
              std::cout << r[i][j] << ' ';
          }
          std::cout << ']' << std::endl;
      }
      std::cout << ']' << std::endl;
  
      return 0;
  }
  