// SPDX-License-Identifier: Apache-2.0
//
// Copyright 2008-2016 Conrad Sanderson (http://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
// 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.
// ------------------------------------------------------------------------

//! \addtogroup fn_logmat
//! @{

template <typename T1>
arma_warn_unused arma_inline typename enable_if2<
    (is_supported_blas_type<typename T1::elem_type>::value &&
     is_cx<typename T1::elem_type>::no),
    const mtOp<std::complex<typename T1::elem_type>, T1, op_logmat> >::result
logmat(const Base<typename T1::elem_type, T1>& X, const uword n_iters = 100u) {
  arma_debug_sigprint();

  return mtOp<std::complex<typename T1::elem_type>, T1, op_logmat>(X.get_ref(), n_iters,
                                                                   uword(0));
}

template <typename T1>
arma_warn_unused arma_inline
    typename enable_if2<(is_supported_blas_type<typename T1::elem_type>::value &&
                         is_cx<typename T1::elem_type>::yes),
                        const Op<T1, op_logmat_cx> >::result
    logmat(const Base<typename T1::elem_type, T1>& X, const uword n_iters = 100u) {
  arma_debug_sigprint();

  return Op<T1, op_logmat_cx>(X.get_ref(), n_iters, uword(0));
}

template <typename T1>
inline typename enable_if2<(is_supported_blas_type<typename T1::elem_type>::value &&
                            is_cx<typename T1::elem_type>::no),
                           bool>::result
logmat(Mat<std::complex<typename T1::elem_type> >& Y,
       const Base<typename T1::elem_type, T1>& X, const uword n_iters = 100u) {
  arma_debug_sigprint();

  const bool status = op_logmat::apply_direct(Y, X.get_ref(), n_iters);

  if (status == false) {
    Y.soft_reset();
    arma_warn(3, "logmat(): transformation failed");
  }

  return status;
}

template <typename T1>
inline typename enable_if2<(is_supported_blas_type<typename T1::elem_type>::value &&
                            is_cx<typename T1::elem_type>::yes),
                           bool>::result
logmat(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type, T1>& X,
       const uword n_iters = 100u) {
  arma_debug_sigprint();

  const bool status = op_logmat_cx::apply_direct(Y, X.get_ref(), n_iters);

  if (status == false) {
    Y.soft_reset();
    arma_warn(3, "logmat(): transformation failed");
  }

  return status;
}

//

template <typename T1>
arma_warn_unused arma_inline
    typename enable_if2<is_supported_blas_type<typename T1::elem_type>::value,
                        const Op<T1, op_logmat_sympd> >::result
    logmat_sympd(const Base<typename T1::elem_type, T1>& X) {
  arma_debug_sigprint();

  return Op<T1, op_logmat_sympd>(X.get_ref());
}

template <typename T1>
inline typename enable_if2<is_supported_blas_type<typename T1::elem_type>::value,
                           bool>::result
logmat_sympd(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type, T1>& X) {
  arma_debug_sigprint();

  const bool status = op_logmat_sympd::apply_direct(Y, X.get_ref());

  if (status == false) {
    Y.soft_reset();
    arma_warn(3, "logmat_sympd(): transformation failed");
  }

  return status;
}

//! @}
