66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
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// Copyright (C) 2009-2015 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_chol
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//! @{
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template<typename T1>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Op<T1, op_chol> >::result
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chol
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(
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const Base<typename T1::elem_type,T1>& X,
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const char* layout = "upper"
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)
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{
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arma_extra_debug_sigprint();
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const char sig = (layout != NULL) ? layout[0] : char(0);
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arma_debug_check( ((sig != 'u') && (sig != 'l')), "chol(): layout must be \"upper\" or \"lower\"" );
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return Op<T1, op_chol>(X.get_ref(), ((sig == 'u') ? 0 : 1), 0 );
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}
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template<typename T1>
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inline
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typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
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chol
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(
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Mat<typename T1::elem_type>& out,
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const Base<typename T1::elem_type,T1>& X,
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const char* layout = "upper"
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)
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{
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arma_extra_debug_sigprint();
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const char sig = (layout != NULL) ? layout[0] : char(0);
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arma_debug_check( ((sig != 'u') && (sig != 'l')), "chol(): layout must be \"upper\" or \"lower\"" );
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const bool status = auxlib::chol(out, X.get_ref(), ((sig == 'u') ? 0 : 1));
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if(status == false)
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{
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out.reset();
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arma_debug_warn("chol(): decomposition failed");
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}
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return status;
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}
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//! @}
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