145 lines
4.2 KiB
C++
145 lines
4.2 KiB
C++
// SPDX-License-Identifier: Apache-2.0
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//
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// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
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// Copyright 2008-2016 National ICT Australia (NICTA)
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// ------------------------------------------------------------------------
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//! \addtogroup fn_eig_pair
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//! @{
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template<typename T1, typename T2>
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arma_warn_unused
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inline
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typename enable_if2< is_supported_blas_type<typename T1::pod_type>::value, Col< std::complex<typename T1::pod_type> > >::result
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eig_pair
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(
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const Base<typename T1::elem_type, T1>& A_expr,
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const Base<typename T1::elem_type, T2>& B_expr
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)
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{
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arma_debug_sigprint();
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typedef typename T1::pod_type T;
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Col< std::complex<T> > eigvals;
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Mat< std::complex<T> > eigvecs;
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const bool status = auxlib::eig_pair(eigvals, eigvecs, false, A_expr.get_ref(), B_expr.get_ref());
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if(status == false)
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{
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eigvals.soft_reset();
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arma_stop_runtime_error("eig_pair(): decomposition failed");
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}
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return eigvals;
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}
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template<typename T1, typename T2>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::pod_type>::value, bool >::result
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eig_pair
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(
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Col< std::complex<typename T1::pod_type> >& eigvals,
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const Base< typename T1::elem_type, T1 >& A_expr,
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const Base< typename T1::elem_type, T2 >& B_expr
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)
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{
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arma_debug_sigprint();
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typedef typename T1::pod_type T;
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Mat< std::complex<T> > eigvecs;
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const bool status = auxlib::eig_pair(eigvals, eigvecs, false, A_expr.get_ref(), B_expr.get_ref());
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if(status == false)
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{
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eigvals.soft_reset();
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arma_warn(3, "eig_pair(): decomposition failed");
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}
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return status;
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}
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template<typename T1, typename T2>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::pod_type>::value, bool >::result
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eig_pair
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(
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Col< std::complex<typename T1::pod_type> >& eigvals,
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Mat< std::complex<typename T1::pod_type> >& eigvecs,
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const Base< typename T1::elem_type, T1 >& A_expr,
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const Base< typename T1::elem_type, T2 >& B_expr
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)
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{
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arma_debug_sigprint();
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arma_conform_check( (void_ptr(&eigvals) == void_ptr(&eigvecs)), "eig_pair(): parameter 'eigval' is an alias of parameter 'eigvec'" );
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const bool status = auxlib::eig_pair(eigvals, eigvecs, true, A_expr.get_ref(), B_expr.get_ref());
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if(status == false)
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{
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eigvals.soft_reset();
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eigvecs.soft_reset();
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arma_warn(3, "eig_pair(): decomposition failed");
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}
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return status;
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}
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template<typename T1, typename T2>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::pod_type>::value, bool >::result
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eig_pair
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(
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Col< std::complex<typename T1::pod_type> >& eigvals,
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Mat< std::complex<typename T1::pod_type> >& leigvecs,
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Mat< std::complex<typename T1::pod_type> >& reigvecs,
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const Base< typename T1::elem_type, T1 >& A_expr,
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const Base< typename T1::elem_type, T2 >& B_expr
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)
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{
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arma_debug_sigprint();
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arma_conform_check( (void_ptr(&eigvals) == void_ptr(&leigvecs)), "eig_pair(): parameter 'eigval' is an alias of parameter 'leigvec'" );
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arma_conform_check( (void_ptr(&eigvals) == void_ptr(&reigvecs)), "eig_pair(): parameter 'eigval' is an alias of parameter 'reigvec'" );
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arma_conform_check( (void_ptr(&leigvecs) == void_ptr(&reigvecs)), "eig_pair(): parameter 'leigvec' is an alias of parameter 'reigvec'" );
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const bool status = auxlib::eig_pair_twosided(eigvals, leigvecs, reigvecs, A_expr.get_ref(), B_expr.get_ref());
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if(status == false)
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{
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eigvals.soft_reset();
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leigvecs.soft_reset();
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reigvecs.soft_reset();
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arma_warn(3, "eig_pair(): decomposition failed");
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}
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return status;
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}
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//! @}
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