PS_Method_CCS_test/libarmadillo/include/armadillo_bits/fn_roots.hpp

// 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_roots
//! @{



template<typename T1>
arma_warn_unused
inline
typename
enable_if2
  <
  is_supported_blas_type<typename T1::elem_type>::value,
  const mtOp<std::complex<typename T1::pod_type>, T1, op_roots>
  >::result
roots(const Base<typename T1::elem_type, T1>& X)
  {
  arma_extra_debug_sigprint();
  
  return mtOp<std::complex<typename T1::pod_type>, T1, op_roots>(X.get_ref());
  }



template<typename T1>
inline
typename
enable_if2
  <
  is_supported_blas_type<typename T1::elem_type>::value,
  bool
  >::result
roots(Mat< std::complex<typename T1::pod_type> >& out, const Base<typename T1::elem_type, T1>& X)
  {
  arma_extra_debug_sigprint();
  
  const bool status = op_roots::apply_direct(out, X.get_ref());
  
  if(status == false)  { arma_debug_warn("roots(): eigen decomposition failed"); }
  
  return status;
  }



//! @}