text: /* Copyright (c) 2020 Yu Jizhu. All Rights Reserved.
  
  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. */
  
  #ifndef METAAUTODIFF_KRONECKERPRODUCT_HPP
  #define METAAUTODIFF_KRONECKERPRODUCT_HPP
  
  #include"../util/Meta.hpp"
  #include"KroneckerProductTrait.hpp"
  #include"PartialDerivativeTrait.hpp"
  
  namespace MetaAD {
  
  namespace ad_math {
  
  template<typename LeftValueTypePara, typename RightValueTypePara>
  struct kronecker_product_policy;
  
  template<>
  struct kronecker_product_policy<ad_MatrixXd, ad_MatrixXd> {
      using OutputValueType = typename kronecker_product_trait<ad_MatrixXd, ad_MatrixXd>::type;
      using DerivativeValueType = typename partial_derivative_trait<ad_MatrixXd, ad_MatrixXd>::type;
      static OutputValueType compute(const ad_MatrixXd& leftOperand, const ad_MatrixXd& rightOperand) {
          OutputValueType result = ad_kroneckerProduct(leftOperand, rightOperand);
          return result;
      }
  };
  
  }
  
  }
  
  
  
  
  #endif