106 lines
2.0 KiB
C++
106 lines
2.0 KiB
C++
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// Copyright (C) 2015 National ICT Australia (NICTA)
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// -------------------------------------------------------------------
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//
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// Written by Conrad Sanderson - http://conradsanderson.id.au
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//! \addtogroup fn_schur
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//! @{
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template<typename T1>
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inline
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bool
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schur
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(
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Mat<typename T1::elem_type>& S,
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const Base<typename T1::elem_type,T1>& X,
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const typename arma_blas_type_only<typename T1::elem_type>::result* junk = 0
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)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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typedef typename T1::elem_type eT;
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Mat<eT> U;
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const bool status = auxlib::schur(U, S, X.get_ref(), false);
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if(status == false)
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{
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S.reset();
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arma_debug_warn("schur(): decomposition failed");
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}
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return status;
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}
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template<typename T1>
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inline
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Mat<typename T1::elem_type>
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schur
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(
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const Base<typename T1::elem_type,T1>& X,
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const typename arma_blas_type_only<typename T1::elem_type>::result* junk = 0
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)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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typedef typename T1::elem_type eT;
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Mat<eT> S;
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Mat<eT> U;
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const bool status = auxlib::schur(U, S, X.get_ref(), false);
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if(status == false)
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{
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S.reset();
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arma_bad("schur(): decomposition failed");
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}
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return S;
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}
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template<typename T1>
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inline
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bool
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schur
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(
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Mat<typename T1::elem_type>& U,
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Mat<typename T1::elem_type>& S,
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const Base<typename T1::elem_type,T1>& X,
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const typename arma_blas_type_only<typename T1::elem_type>::result* junk = 0
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)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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arma_debug_check( void_ptr(&U) == void_ptr(&S), "schur(): 'U' is an alias of 'S'" );
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const bool status = auxlib::schur(U, S, X.get_ref(), true);
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if(status == false)
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{
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U.reset();
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S.reset();
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arma_debug_warn("schur(): decomposition failed");
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}
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return status;
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}
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//! @}
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