// 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 xtrans_mat
//! @{


template<typename eT, bool do_conj>
inline
xtrans_mat<eT,do_conj>::xtrans_mat(const Mat<eT>& in_X)
  : X     (in_X       )
  , n_rows(in_X.n_cols)  // deliberately swapped
  , n_cols(in_X.n_rows)
  , n_elem(in_X.n_elem)
  {
  arma_debug_sigprint();
  }



template<typename eT, bool do_conj>
inline
void
xtrans_mat<eT,do_conj>::extract(Mat<eT>& out) const
  {
  arma_debug_sigprint();
  
  really_do_conj ? op_htrans::apply_mat(out, X) : op_strans::apply_mat(out, X);
  }



template<typename eT, bool do_conj>
inline
eT
xtrans_mat<eT,do_conj>::operator[](const uword ii) const
  {
  if(Y.n_elem > 0)
    {
    return Y[ii];
    }
  else
    {
    really_do_conj ? op_htrans::apply_mat(Y, X) : op_strans::apply_mat(Y, X);
    return Y[ii];
    }
  }



template<typename eT, bool do_conj>
inline
eT
xtrans_mat<eT,do_conj>::at_alt(const uword ii) const
  {
  return (*this).operator[](ii);
  }



template<typename eT, bool do_conj>
arma_inline
eT
xtrans_mat<eT,do_conj>::at(const uword in_row, const uword in_col) const
  {
  return really_do_conj ? eT(access::alt_conj(X.at(in_col, in_row))) : eT(X.at(in_col, in_row));
  // in_row and in_col deliberately swapped above
  }



//! @}