// 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_polyfit
//! @{



struct glue_polyfit
  {
  template<typename T1, typename T2>
  struct traits
    {
    static constexpr bool is_row  = false;
    static constexpr bool is_col  = true;
    static constexpr bool is_xvec = false;
    };
  
  template<typename eT> inline static bool apply_noalias(Mat<eT>& out, const Col<eT>& X, const Col<eT>& Y, const uword N);
  
  template<typename T1, typename T2> inline static bool apply_direct(Mat<typename T1::elem_type>& out, const Base<typename T1::elem_type,T1>& X_expr, const Base<typename T1::elem_type, T2>& Y_expr, const uword N);
  
  template<typename T1, typename T2> inline static void apply(Mat<typename T1::elem_type>& out, const Glue<T1,T2,glue_polyfit>& expr);
  };



//! @}

