29 lines
768 B
C++
29 lines
768 B
C++
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// Copyright (C) 2008-2010 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_diagvec
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//! @{
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//! extract a diagonal from a matrix
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template<typename T1>
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arma_inline
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const Op<T1, op_diagvec>
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diagvec(const Base<typename T1::elem_type,T1>& X, const sword diag_id = 0)
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{
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arma_extra_debug_sigprint();
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return Op<T1, op_diagvec>(X.get_ref(), ((diag_id < 0) ? -diag_id : diag_id), ((diag_id < 0) ? 1 : 0) );
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}
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//! @}
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