// SPDX-License-Identifier: Apache-2.0
// 
// Copyright 2008-2016 Conrad Sanderson (https://conradsanderson.id.au)
// Copyright 2008-2016 National ICT Australia (NICTA)
// 
// 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
// https://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.
// ------------------------------------------------------------------------



//! \addtogroup glue_kron
//! @{



struct glue_kron
  {
  template<typename T1, typename T2>
  struct traits
    {
    static constexpr bool is_row  = (T1::is_row && T2::is_row);
    static constexpr bool is_col  = (T1::is_col && T2::is_col);
    static constexpr bool is_xvec = false;
    };
  
  template<typename eT> inline static void direct_kron(Mat<eT>&                out, const Mat<eT>&                A, const Mat<eT>&                B);
  template<typename T>  inline static void direct_kron(Mat< std::complex<T> >& out, const Mat< std::complex<T> >& A, const Mat<T>&                 B);
  template<typename T>  inline static void direct_kron(Mat< std::complex<T> >& out, const Mat<T>&                 A, const Mat< std::complex<T> >& B);
  
  template<typename T1, typename T2> inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_kron>& X);
  
  template<typename T1, typename T2> inline static void apply(Mat_noalias<typename T1::elem_type>& out, const Glue<T1,T2,glue_kron>& X);
  };



//! @}