393 lines
6.7 KiB
C++
393 lines
6.7 KiB
C++
// 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 podarray
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//! @{
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template<typename eT>
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arma_hot
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inline
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podarray<eT>::~podarray()
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{
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arma_extra_debug_sigprint_this(this);
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if(n_elem > podarray_prealloc_n_elem::val )
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{
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memory::release( mem );
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}
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}
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template<typename eT>
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inline
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podarray<eT>::podarray()
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: n_elem(0)
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, mem (0)
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{
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arma_extra_debug_sigprint_this(this);
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}
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template<typename eT>
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inline
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podarray<eT>::podarray(const podarray& x)
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: n_elem(x.n_elem)
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{
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arma_extra_debug_sigprint();
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const uword x_n_elem = x.n_elem;
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init_cold(x_n_elem);
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arrayops::copy( memptr(), x.memptr(), x_n_elem );
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}
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template<typename eT>
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inline
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const podarray<eT>&
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podarray<eT>::operator=(const podarray& x)
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{
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arma_extra_debug_sigprint();
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if(this != &x)
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{
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const uword x_n_elem = x.n_elem;
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init_warm(x_n_elem);
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arrayops::copy( memptr(), x.memptr(), x_n_elem );
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}
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return *this;
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}
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template<typename eT>
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arma_hot
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arma_inline
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podarray<eT>::podarray(const uword new_n_elem)
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: n_elem(new_n_elem)
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{
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arma_extra_debug_sigprint_this(this);
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init_cold(new_n_elem);
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}
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template<typename eT>
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arma_inline
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podarray<eT>::podarray(const eT* X, const uword new_n_elem)
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: n_elem(new_n_elem)
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{
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arma_extra_debug_sigprint_this(this);
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init_cold(new_n_elem);
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arrayops::copy( memptr(), X, new_n_elem );
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}
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// template<typename eT>
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// template<typename T1>
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// inline
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// podarray<eT>::podarray(const Proxy<T1>& P)
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// : n_elem(P.get_n_elem())
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// {
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// arma_extra_debug_sigprint_this(this);
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//
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// const uword P_n_elem = P.get_n_elem();
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//
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// init_cold(P_n_elem);
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//
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// eT* out_mem = (*this).memptr();
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//
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// if(Proxy<T1>::use_at == false)
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// {
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// typename Proxy<T1>::ea_type A = P.get_ea();
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//
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// uword i,j;
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// for(i=0, j=1; j < P_n_elem; i+=2, j+=2)
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// {
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// const eT val_i = A[i];
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// const eT val_j = A[j];
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//
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// out_mem[i] = val_i;
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// out_mem[j] = val_j;
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// }
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//
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// if(i < P_n_elem)
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// {
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// out_mem[i] = A[i];
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// }
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// }
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// else
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// {
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// const uword P_n_rows = P.get_n_rows();
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// const uword P_n_cols = P.get_n_cols();
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//
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// if(P_n_rows != 1)
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// {
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// uword count = 0;
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//
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// for(uword col=0; col < P_n_cols; ++col)
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// for(uword row=0; row < P_n_rows; ++row, ++count)
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// {
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// out_mem[count] = P.at(row,col);
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// }
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// }
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// else
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// {
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// for(uword col=0; col < P_n_cols; ++col)
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// {
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// out_mem[col] = P.at(0,col);
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// }
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// }
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// }
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// }
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template<typename eT>
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arma_inline
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eT
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podarray<eT>::operator[] (const uword i) const
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{
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return mem[i];
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}
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template<typename eT>
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arma_inline
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eT&
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podarray<eT>::operator[] (const uword i)
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{
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return access::rw(mem[i]);
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}
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template<typename eT>
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arma_inline
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eT
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podarray<eT>::operator() (const uword i) const
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{
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arma_debug_check_bounds( (i >= n_elem), "podarray::operator(): index out of bounds" );
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return mem[i];
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}
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template<typename eT>
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arma_inline
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eT&
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podarray<eT>::operator() (const uword i)
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{
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arma_debug_check_bounds( (i >= n_elem), "podarray::operator(): index out of bounds" );
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return access::rw(mem[i]);
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}
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template<typename eT>
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inline
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void
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podarray<eT>::set_min_size(const uword min_n_elem)
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{
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arma_extra_debug_sigprint();
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if(min_n_elem > n_elem) { init_warm(min_n_elem); }
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}
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template<typename eT>
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inline
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void
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podarray<eT>::set_size(const uword new_n_elem)
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{
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arma_extra_debug_sigprint();
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init_warm(new_n_elem);
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}
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template<typename eT>
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inline
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void
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podarray<eT>::reset()
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{
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arma_extra_debug_sigprint();
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init_warm(0);
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}
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template<typename eT>
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inline
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void
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podarray<eT>::fill(const eT val)
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{
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arma_extra_debug_sigprint();
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arrayops::inplace_set(memptr(), val, n_elem);
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}
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template<typename eT>
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inline
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void
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podarray<eT>::zeros()
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{
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arma_extra_debug_sigprint();
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arrayops::fill_zeros(memptr(), n_elem);
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}
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template<typename eT>
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inline
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void
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podarray<eT>::zeros(const uword new_n_elem)
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{
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arma_extra_debug_sigprint();
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init_warm(new_n_elem);
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arrayops::fill_zeros(memptr(), n_elem);
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}
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template<typename eT>
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arma_inline
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eT*
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podarray<eT>::memptr()
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{
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return mem;
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}
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template<typename eT>
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arma_inline
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const eT*
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podarray<eT>::memptr() const
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{
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return mem;
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}
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template<typename eT>
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inline
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void
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podarray<eT>::copy_row(const Mat<eT>& A, const uword row)
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{
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const uword cols = A.n_cols;
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// note: this function assumes that the podarray has been set to the correct size beforehand
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eT* out = memptr();
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switch(cols)
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{
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default:
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{
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uword i,j;
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for(i=0, j=1; j < cols; i+=2, j+=2)
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{
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const eT tmp_i = A.at(row, i);
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const eT tmp_j = A.at(row, j);
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out[i] = tmp_i;
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out[j] = tmp_j;
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}
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if(i < cols)
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{
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out[i] = A.at(row, i);
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}
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}
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break;
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case 8: out[7] = A.at(row, 7);
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// fallthrough
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case 7: out[6] = A.at(row, 6);
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// fallthrough
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case 6: out[5] = A.at(row, 5);
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// fallthrough
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case 5: out[4] = A.at(row, 4);
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// fallthrough
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case 4: out[3] = A.at(row, 3);
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// fallthrough
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case 3: out[2] = A.at(row, 2);
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// fallthrough
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case 2: out[1] = A.at(row, 1);
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// fallthrough
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case 1: out[0] = A.at(row, 0);
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// fallthrough
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case 0: ;
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// fallthrough
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}
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}
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template<typename eT>
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inline
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void
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podarray<eT>::init_cold(const uword new_n_elem)
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{
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arma_extra_debug_sigprint();
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mem = (new_n_elem <= podarray_prealloc_n_elem::val) ? mem_local : memory::acquire<eT>(new_n_elem);
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}
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template<typename eT>
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inline
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void
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podarray<eT>::init_warm(const uword new_n_elem)
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{
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arma_extra_debug_sigprint();
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if(n_elem == new_n_elem) { return; }
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if(n_elem > podarray_prealloc_n_elem::val) { memory::release( mem ); }
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mem = (new_n_elem <= podarray_prealloc_n_elem::val) ? mem_local : memory::acquire<eT>(new_n_elem);
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access::rw(n_elem) = new_n_elem;
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}
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//! @}
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