860 lines
21 KiB
C++
860 lines
21 KiB
C++
// Copyright (C) 2010-2015 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 subview_elem1
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//! @{
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template<typename eT, typename T1>
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inline
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subview_elem1<eT,T1>::~subview_elem1()
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{
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arma_extra_debug_sigprint();
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}
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template<typename eT, typename T1>
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arma_inline
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subview_elem1<eT,T1>::subview_elem1(const Mat<eT>& in_m, const Base<uword,T1>& in_a)
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: m(in_m)
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, a(in_a)
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{
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arma_extra_debug_sigprint();
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}
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template<typename eT, typename T1>
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arma_inline
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subview_elem1<eT,T1>::subview_elem1(const Cube<eT>& in_q, const Base<uword,T1>& in_a)
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: fake_m( const_cast< eT* >(in_q.memptr()), in_q.n_elem, 1, false )
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, m( fake_m )
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, a( in_a )
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{
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arma_extra_debug_sigprint();
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}
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template<typename eT, typename T1>
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template<typename op_type>
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inline
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void
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subview_elem1<eT,T1>::inplace_op(const eT val)
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{
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arma_extra_debug_sigprint();
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Mat<eT>& m_local = const_cast< Mat<eT>& >(m);
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eT* m_mem = m_local.memptr();
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const uword m_n_elem = m_local.n_elem;
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const unwrap_check_mixed<T1> tmp(a.get_ref(), m_local);
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const umat& aa = tmp.M;
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arma_debug_check
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(
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( (aa.is_vec() == false) && (aa.is_empty() == false) ),
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"Mat::elem(): given object is not a vector"
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);
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const uword* aa_mem = aa.memptr();
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const uword aa_n_elem = aa.n_elem;
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uword iq,jq;
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for(iq=0, jq=1; jq < aa_n_elem; iq+=2, jq+=2)
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{
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const uword ii = aa_mem[iq];
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const uword jj = aa_mem[jq];
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arma_debug_check( ( (ii >= m_n_elem) || (jj >= m_n_elem) ), "Mat::elem(): index out of bounds" );
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if(is_same_type<op_type, op_internal_equ >::yes) { m_mem[ii] = val; m_mem[jj] = val; }
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if(is_same_type<op_type, op_internal_plus >::yes) { m_mem[ii] += val; m_mem[jj] += val; }
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if(is_same_type<op_type, op_internal_minus>::yes) { m_mem[ii] -= val; m_mem[jj] -= val; }
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if(is_same_type<op_type, op_internal_schur>::yes) { m_mem[ii] *= val; m_mem[jj] *= val; }
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if(is_same_type<op_type, op_internal_div >::yes) { m_mem[ii] /= val; m_mem[jj] /= val; }
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}
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if(iq < aa_n_elem)
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{
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const uword ii = aa_mem[iq];
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arma_debug_check( (ii >= m_n_elem) , "Mat::elem(): index out of bounds" );
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if(is_same_type<op_type, op_internal_equ >::yes) { m_mem[ii] = val; }
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if(is_same_type<op_type, op_internal_plus >::yes) { m_mem[ii] += val; }
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if(is_same_type<op_type, op_internal_minus>::yes) { m_mem[ii] -= val; }
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if(is_same_type<op_type, op_internal_schur>::yes) { m_mem[ii] *= val; }
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if(is_same_type<op_type, op_internal_div >::yes) { m_mem[ii] /= val; }
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}
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}
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template<typename eT, typename T1>
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template<typename op_type, typename T2>
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inline
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void
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subview_elem1<eT,T1>::inplace_op(const subview_elem1<eT,T2>& x)
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{
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arma_extra_debug_sigprint();
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subview_elem1<eT,T1>& s = *this;
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if(&(s.m) == &(x.m))
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{
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arma_extra_debug_print("subview_elem1::inplace_op(): aliasing detected");
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const Mat<eT> tmp(x);
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if(is_same_type<op_type, op_internal_equ >::yes) { s.operator= (tmp); }
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if(is_same_type<op_type, op_internal_plus >::yes) { s.operator+=(tmp); }
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if(is_same_type<op_type, op_internal_minus>::yes) { s.operator-=(tmp); }
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if(is_same_type<op_type, op_internal_schur>::yes) { s.operator%=(tmp); }
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if(is_same_type<op_type, op_internal_div >::yes) { s.operator/=(tmp); }
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}
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else
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{
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Mat<eT>& s_m_local = const_cast< Mat<eT>& >(s.m);
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const Mat<eT>& x_m_local = x.m;
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const unwrap_check_mixed<T1> s_tmp(s.a.get_ref(), s_m_local);
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const unwrap_check_mixed<T2> x_tmp(x.a.get_ref(), s_m_local);
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const umat& s_aa = s_tmp.M;
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const umat& x_aa = x_tmp.M;
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arma_debug_check
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(
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( ((s_aa.is_vec() == false) && (s_aa.is_empty() == false)) || ((x_aa.is_vec() == false) && (x_aa.is_empty() == false)) ),
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"Mat::elem(): given object is not a vector"
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);
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const uword* s_aa_mem = s_aa.memptr();
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const uword* x_aa_mem = x_aa.memptr();
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const uword s_aa_n_elem = s_aa.n_elem;
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arma_debug_check( (s_aa_n_elem != x_aa.n_elem), "Mat::elem(): size mismatch" );
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eT* s_m_mem = s_m_local.memptr();
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const uword s_m_n_elem = s_m_local.n_elem;
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const eT* x_m_mem = x_m_local.memptr();
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const uword x_m_n_elem = x_m_local.n_elem;
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uword iq,jq;
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for(iq=0, jq=1; jq < s_aa_n_elem; iq+=2, jq+=2)
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{
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const uword s_ii = s_aa_mem[iq];
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const uword s_jj = s_aa_mem[jq];
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const uword x_ii = x_aa_mem[iq];
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const uword x_jj = x_aa_mem[jq];
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arma_debug_check
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(
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(s_ii >= s_m_n_elem) || (s_jj >= s_m_n_elem) || (x_ii >= x_m_n_elem) || (x_jj >= x_m_n_elem),
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"Mat::elem(): index out of bounds"
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);
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if(is_same_type<op_type, op_internal_equ >::yes) { s_m_mem[s_ii] = x_m_mem[x_ii]; s_m_mem[s_jj] = x_m_mem[x_jj]; }
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if(is_same_type<op_type, op_internal_plus >::yes) { s_m_mem[s_ii] += x_m_mem[x_ii]; s_m_mem[s_jj] += x_m_mem[x_jj]; }
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if(is_same_type<op_type, op_internal_minus>::yes) { s_m_mem[s_ii] -= x_m_mem[x_ii]; s_m_mem[s_jj] -= x_m_mem[x_jj]; }
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if(is_same_type<op_type, op_internal_schur>::yes) { s_m_mem[s_ii] *= x_m_mem[x_ii]; s_m_mem[s_jj] *= x_m_mem[x_jj]; }
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if(is_same_type<op_type, op_internal_div >::yes) { s_m_mem[s_ii] /= x_m_mem[x_ii]; s_m_mem[s_jj] /= x_m_mem[x_jj]; }
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}
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if(iq < s_aa_n_elem)
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{
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const uword s_ii = s_aa_mem[iq];
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const uword x_ii = x_aa_mem[iq];
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arma_debug_check
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(
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( (s_ii >= s_m_n_elem) || (x_ii >= x_m_n_elem) ),
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"Mat::elem(): index out of bounds"
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);
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if(is_same_type<op_type, op_internal_equ >::yes) { s_m_mem[s_ii] = x_m_mem[x_ii]; }
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if(is_same_type<op_type, op_internal_plus >::yes) { s_m_mem[s_ii] += x_m_mem[x_ii]; }
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if(is_same_type<op_type, op_internal_minus>::yes) { s_m_mem[s_ii] -= x_m_mem[x_ii]; }
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if(is_same_type<op_type, op_internal_schur>::yes) { s_m_mem[s_ii] *= x_m_mem[x_ii]; }
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if(is_same_type<op_type, op_internal_div >::yes) { s_m_mem[s_ii] /= x_m_mem[x_ii]; }
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}
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}
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}
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template<typename eT, typename T1>
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template<typename op_type, typename T2>
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inline
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void
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subview_elem1<eT,T1>::inplace_op(const Base<eT,T2>& x)
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{
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arma_extra_debug_sigprint();
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Mat<eT>& m_local = const_cast< Mat<eT>& >(m);
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eT* m_mem = m_local.memptr();
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const uword m_n_elem = m_local.n_elem;
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const unwrap_check_mixed<T1> aa_tmp(a.get_ref(), m_local);
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const umat& aa = aa_tmp.M;
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arma_debug_check
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(
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( (aa.is_vec() == false) && (aa.is_empty() == false) ),
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"Mat::elem(): given object is not a vector"
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);
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const uword* aa_mem = aa.memptr();
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const uword aa_n_elem = aa.n_elem;
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const Proxy<T2> P(x.get_ref());
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arma_debug_check( (aa_n_elem != P.get_n_elem()), "Mat::elem(): size mismatch" );
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const bool is_alias = P.is_alias(m);
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if( (is_alias == false) && (Proxy<T2>::prefer_at_accessor == false) )
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{
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typename Proxy<T2>::ea_type X = P.get_ea();
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uword iq,jq;
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for(iq=0, jq=1; jq < aa_n_elem; iq+=2, jq+=2)
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{
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const uword ii = aa_mem[iq];
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const uword jj = aa_mem[jq];
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arma_debug_check( ( (ii >= m_n_elem) || (jj >= m_n_elem) ), "Mat::elem(): index out of bounds" );
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if(is_same_type<op_type, op_internal_equ >::yes) { m_mem[ii] = X[iq]; m_mem[jj] = X[jq]; }
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if(is_same_type<op_type, op_internal_plus >::yes) { m_mem[ii] += X[iq]; m_mem[jj] += X[jq]; }
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if(is_same_type<op_type, op_internal_minus>::yes) { m_mem[ii] -= X[iq]; m_mem[jj] -= X[jq]; }
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if(is_same_type<op_type, op_internal_schur>::yes) { m_mem[ii] *= X[iq]; m_mem[jj] *= X[jq]; }
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if(is_same_type<op_type, op_internal_div >::yes) { m_mem[ii] /= X[iq]; m_mem[jj] /= X[jq]; }
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}
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if(iq < aa_n_elem)
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{
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const uword ii = aa_mem[iq];
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arma_debug_check( (ii >= m_n_elem) , "Mat::elem(): index out of bounds" );
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if(is_same_type<op_type, op_internal_equ >::yes) { m_mem[ii] = X[iq]; }
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if(is_same_type<op_type, op_internal_plus >::yes) { m_mem[ii] += X[iq]; }
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if(is_same_type<op_type, op_internal_minus>::yes) { m_mem[ii] -= X[iq]; }
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if(is_same_type<op_type, op_internal_schur>::yes) { m_mem[ii] *= X[iq]; }
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if(is_same_type<op_type, op_internal_div >::yes) { m_mem[ii] /= X[iq]; }
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}
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}
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else
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{
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arma_extra_debug_print("subview_elem1::inplace_op(): aliasing or prefer_at_accessor detected");
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const unwrap_check<typename Proxy<T2>::stored_type> tmp(P.Q, is_alias);
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const Mat<eT>& M = tmp.M;
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const eT* X = M.memptr();
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uword iq,jq;
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for(iq=0, jq=1; jq < aa_n_elem; iq+=2, jq+=2)
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{
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const uword ii = aa_mem[iq];
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const uword jj = aa_mem[jq];
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arma_debug_check( ( (ii >= m_n_elem) || (jj >= m_n_elem) ), "Mat::elem(): index out of bounds" );
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if(is_same_type<op_type, op_internal_equ >::yes) { m_mem[ii] = X[iq]; m_mem[jj] = X[jq]; }
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if(is_same_type<op_type, op_internal_plus >::yes) { m_mem[ii] += X[iq]; m_mem[jj] += X[jq]; }
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if(is_same_type<op_type, op_internal_minus>::yes) { m_mem[ii] -= X[iq]; m_mem[jj] -= X[jq]; }
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if(is_same_type<op_type, op_internal_schur>::yes) { m_mem[ii] *= X[iq]; m_mem[jj] *= X[jq]; }
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if(is_same_type<op_type, op_internal_div >::yes) { m_mem[ii] /= X[iq]; m_mem[jj] /= X[jq]; }
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}
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if(iq < aa_n_elem)
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{
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const uword ii = aa_mem[iq];
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arma_debug_check( (ii >= m_n_elem) , "Mat::elem(): index out of bounds" );
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if(is_same_type<op_type, op_internal_equ >::yes) { m_mem[ii] = X[iq]; }
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if(is_same_type<op_type, op_internal_plus >::yes) { m_mem[ii] += X[iq]; }
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if(is_same_type<op_type, op_internal_minus>::yes) { m_mem[ii] -= X[iq]; }
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if(is_same_type<op_type, op_internal_schur>::yes) { m_mem[ii] *= X[iq]; }
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if(is_same_type<op_type, op_internal_div >::yes) { m_mem[ii] /= X[iq]; }
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}
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}
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}
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//
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//
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template<typename eT, typename T1>
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arma_inline
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const Op<subview_elem1<eT,T1>,op_htrans>
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subview_elem1<eT,T1>::t() const
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{
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return Op<subview_elem1<eT,T1>,op_htrans>(*this);
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}
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template<typename eT, typename T1>
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arma_inline
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const Op<subview_elem1<eT,T1>,op_htrans>
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subview_elem1<eT,T1>::ht() const
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{
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return Op<subview_elem1<eT,T1>,op_htrans>(*this);
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}
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template<typename eT, typename T1>
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arma_inline
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const Op<subview_elem1<eT,T1>,op_strans>
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subview_elem1<eT,T1>::st() const
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{
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return Op<subview_elem1<eT,T1>,op_strans>(*this);
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}
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template<typename eT, typename T1>
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inline
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void
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subview_elem1<eT,T1>::fill(const eT val)
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{
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arma_extra_debug_sigprint();
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inplace_op<op_internal_equ>(val);
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}
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template<typename eT, typename T1>
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inline
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void
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subview_elem1<eT,T1>::zeros()
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{
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arma_extra_debug_sigprint();
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inplace_op<op_internal_equ>(eT(0));
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}
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template<typename eT, typename T1>
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inline
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void
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subview_elem1<eT,T1>::ones()
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{
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arma_extra_debug_sigprint();
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inplace_op<op_internal_equ>(eT(1));
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}
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template<typename eT, typename T1>
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inline
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void
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subview_elem1<eT,T1>::randu()
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{
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arma_extra_debug_sigprint();
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Mat<eT>& m_local = const_cast< Mat<eT>& >(m);
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eT* m_mem = m_local.memptr();
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const uword m_n_elem = m_local.n_elem;
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const unwrap_check_mixed<T1> tmp(a.get_ref(), m_local);
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const umat& aa = tmp.M;
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arma_debug_check
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(
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( (aa.is_vec() == false) && (aa.is_empty() == false) ),
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"Mat::elem(): given object is not a vector"
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);
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const uword* aa_mem = aa.memptr();
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const uword aa_n_elem = aa.n_elem;
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uword iq,jq;
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for(iq=0, jq=1; jq < aa_n_elem; iq+=2, jq+=2)
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{
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const uword ii = aa_mem[iq];
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const uword jj = aa_mem[jq];
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arma_debug_check( ( (ii >= m_n_elem) || (jj >= m_n_elem) ), "Mat::elem(): index out of bounds" );
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const eT val1 = eT(arma_rng::randu<eT>());
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const eT val2 = eT(arma_rng::randu<eT>());
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m_mem[ii] = val1;
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m_mem[jj] = val2;
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}
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if(iq < aa_n_elem)
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{
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const uword ii = aa_mem[iq];
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arma_debug_check( (ii >= m_n_elem) , "Mat::elem(): index out of bounds" );
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m_mem[ii] = eT(arma_rng::randu<eT>());
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}
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}
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template<typename eT, typename T1>
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inline
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void
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subview_elem1<eT,T1>::randn()
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{
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arma_extra_debug_sigprint();
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Mat<eT>& m_local = const_cast< Mat<eT>& >(m);
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eT* m_mem = m_local.memptr();
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const uword m_n_elem = m_local.n_elem;
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|
const unwrap_check_mixed<T1> tmp(a.get_ref(), m_local);
|
|
const umat& aa = tmp.M;
|
|
|
|
arma_debug_check
|
|
(
|
|
( (aa.is_vec() == false) && (aa.is_empty() == false) ),
|
|
"Mat::elem(): given object is not a vector"
|
|
);
|
|
|
|
const uword* aa_mem = aa.memptr();
|
|
const uword aa_n_elem = aa.n_elem;
|
|
|
|
uword iq,jq;
|
|
for(iq=0, jq=1; jq < aa_n_elem; iq+=2, jq+=2)
|
|
{
|
|
const uword ii = aa_mem[iq];
|
|
const uword jj = aa_mem[jq];
|
|
|
|
arma_debug_check( ( (ii >= m_n_elem) || (jj >= m_n_elem) ), "Mat::elem(): index out of bounds" );
|
|
|
|
arma_rng::randn<eT>::dual_val( m_mem[ii], m_mem[jj] );
|
|
}
|
|
|
|
if(iq < aa_n_elem)
|
|
{
|
|
const uword ii = aa_mem[iq];
|
|
|
|
arma_debug_check( (ii >= m_n_elem) , "Mat::elem(): index out of bounds" );
|
|
|
|
m_mem[ii] = eT(arma_rng::randn<eT>());
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator+= (const eT val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_plus>(val);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator-= (const eT val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_minus>(val);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator*= (const eT val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_schur>(val);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator/= (const eT val)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_div>(val);
|
|
}
|
|
|
|
|
|
|
|
//
|
|
//
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator_equ(const subview_elem1<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_equ>(x);
|
|
}
|
|
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator= (const subview_elem1<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
(*this).operator_equ(x);
|
|
}
|
|
|
|
|
|
|
|
//! work around compiler bugs
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator= (const subview_elem1<eT,T1>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
(*this).operator_equ(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator+= (const subview_elem1<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_plus>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator-= (const subview_elem1<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_minus>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator%= (const subview_elem1<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_schur>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator/= (const subview_elem1<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_div>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator= (const Base<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_equ>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator+= (const Base<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_plus>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator-= (const Base<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_minus>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator%= (const Base<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_schur>(x);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename T2>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::operator/= (const Base<eT,T2>& x)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
inplace_op<op_internal_div>(x);
|
|
}
|
|
|
|
|
|
|
|
//
|
|
//
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::extract(Mat<eT>& actual_out, const subview_elem1<eT,T1>& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const unwrap_check_mixed<T1> tmp1(in.a.get_ref(), actual_out);
|
|
const umat& aa = tmp1.M;
|
|
|
|
arma_debug_check
|
|
(
|
|
( (aa.is_vec() == false) && (aa.is_empty() == false) ),
|
|
"Mat::elem(): given object is not a vector"
|
|
);
|
|
|
|
const uword* aa_mem = aa.memptr();
|
|
const uword aa_n_elem = aa.n_elem;
|
|
|
|
const Mat<eT>& m_local = in.m;
|
|
|
|
const eT* m_mem = m_local.memptr();
|
|
const uword m_n_elem = m_local.n_elem;
|
|
|
|
const bool alias = (&actual_out == &m_local);
|
|
|
|
if(alias) { arma_extra_debug_print("subview_elem1::extract(): aliasing detected"); }
|
|
|
|
Mat<eT>* tmp_out = alias ? new Mat<eT>() : 0;
|
|
Mat<eT>& out = alias ? *tmp_out : actual_out;
|
|
|
|
out.set_size(aa_n_elem, 1);
|
|
|
|
eT* out_mem = out.memptr();
|
|
|
|
uword i,j;
|
|
for(i=0, j=1; j<aa_n_elem; i+=2, j+=2)
|
|
{
|
|
const uword ii = aa_mem[i];
|
|
const uword jj = aa_mem[j];
|
|
|
|
arma_debug_check( ( (ii >= m_n_elem) || (jj >= m_n_elem) ), "Mat::elem(): index out of bounds" );
|
|
|
|
out_mem[i] = m_mem[ii];
|
|
out_mem[j] = m_mem[jj];
|
|
}
|
|
|
|
if(i < aa_n_elem)
|
|
{
|
|
const uword ii = aa_mem[i];
|
|
|
|
arma_debug_check( (ii >= m_n_elem) , "Mat::elem(): index out of bounds" );
|
|
|
|
out_mem[i] = m_mem[ii];
|
|
}
|
|
|
|
if(alias == true)
|
|
{
|
|
actual_out.steal_mem(out);
|
|
delete tmp_out;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
template<typename op_type>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::mat_inplace_op(Mat<eT>& out, const subview_elem1& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const unwrap<T1> tmp1(in.a.get_ref());
|
|
const umat& aa = tmp1.M;
|
|
|
|
arma_debug_check
|
|
(
|
|
( (aa.is_vec() == false) && (aa.is_empty() == false) ),
|
|
"Mat::elem(): given object is not a vector"
|
|
);
|
|
|
|
const uword* aa_mem = aa.memptr();
|
|
const uword aa_n_elem = aa.n_elem;
|
|
|
|
const unwrap_check< Mat<eT> > tmp2(in.m, out);
|
|
const Mat<eT>& m_local = tmp2.M;
|
|
|
|
const eT* m_mem = m_local.memptr();
|
|
const uword m_n_elem = m_local.n_elem;
|
|
|
|
arma_debug_check( (out.n_elem != aa_n_elem), "Mat::elem(): size mismatch" );
|
|
|
|
eT* out_mem = out.memptr();
|
|
|
|
uword i,j;
|
|
for(i=0, j=1; j<aa_n_elem; i+=2, j+=2)
|
|
{
|
|
const uword ii = aa_mem[i];
|
|
const uword jj = aa_mem[j];
|
|
|
|
arma_debug_check( ( (ii >= m_n_elem) || (jj >= m_n_elem) ), "Mat::elem(): index out of bounds" );
|
|
|
|
if(is_same_type<op_type, op_internal_plus >::yes) { out_mem[i] += m_mem[ii]; out_mem[j] += m_mem[jj]; }
|
|
if(is_same_type<op_type, op_internal_minus>::yes) { out_mem[i] -= m_mem[ii]; out_mem[j] -= m_mem[jj]; }
|
|
if(is_same_type<op_type, op_internal_schur>::yes) { out_mem[i] *= m_mem[ii]; out_mem[j] *= m_mem[jj]; }
|
|
if(is_same_type<op_type, op_internal_div >::yes) { out_mem[i] /= m_mem[ii]; out_mem[j] /= m_mem[jj]; }
|
|
}
|
|
|
|
if(i < aa_n_elem)
|
|
{
|
|
const uword ii = aa_mem[i];
|
|
|
|
arma_debug_check( (ii >= m_n_elem) , "Mat::elem(): index out of bounds" );
|
|
|
|
if(is_same_type<op_type, op_internal_plus >::yes) { out_mem[i] += m_mem[ii]; }
|
|
if(is_same_type<op_type, op_internal_minus>::yes) { out_mem[i] -= m_mem[ii]; }
|
|
if(is_same_type<op_type, op_internal_schur>::yes) { out_mem[i] *= m_mem[ii]; }
|
|
if(is_same_type<op_type, op_internal_div >::yes) { out_mem[i] /= m_mem[ii]; }
|
|
}
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::plus_inplace(Mat<eT>& out, const subview_elem1& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
mat_inplace_op<op_internal_plus>(out, in);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::minus_inplace(Mat<eT>& out, const subview_elem1& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
mat_inplace_op<op_internal_minus>(out, in);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::schur_inplace(Mat<eT>& out, const subview_elem1& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
mat_inplace_op<op_internal_schur>(out, in);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT, typename T1>
|
|
inline
|
|
void
|
|
subview_elem1<eT,T1>::div_inplace(Mat<eT>& out, const subview_elem1& in)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
mat_inplace_op<op_internal_div>(out, in);
|
|
}
|
|
|
|
|
|
|
|
//! @}
|