841 lines
18 KiB
C++
841 lines
18 KiB
C++
// Copyright (C) 2008-2015 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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// Written by Ryan Curtin
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//! \addtogroup arma_ostream
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//! @{
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inline
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arma_ostream_state::arma_ostream_state(const std::ostream& o)
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: orig_flags (o.flags())
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, orig_precision(o.precision())
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, orig_width (o.width())
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, orig_fill (o.fill())
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{
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}
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inline
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void
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arma_ostream_state::restore(std::ostream& o) const
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{
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o.flags (orig_flags);
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o.precision(orig_precision);
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o.width (orig_width);
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o.fill (orig_fill);
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}
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//
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//
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template<typename eT>
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inline
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std::streamsize
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arma_ostream::modify_stream(std::ostream& o, const eT* data, const uword n_elem)
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{
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o.unsetf(ios::showbase);
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o.unsetf(ios::uppercase);
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o.unsetf(ios::showpos);
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o.fill(' ');
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std::streamsize cell_width;
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bool use_layout_B = false;
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bool use_layout_C = false;
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bool use_layout_D = false;
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for(uword i=0; i<n_elem; ++i)
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{
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const eT val = data[i];
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if(
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( cond_rel< (sizeof(eT) > 4) && (is_same_type<uword,eT>::yes || is_same_type<sword,eT>::yes) >::geq(val, eT(+10000000000)) )
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||
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( cond_rel< (sizeof(eT) > 4) && is_same_type<sword,eT>::yes >::leq(val, eT(-10000000000)) )
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)
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{
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use_layout_D = true;
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break;
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}
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if(
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( val >= eT(+100) )
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||
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//( (is_signed<eT>::value == true) && (val <= eT(-100)) ) ||
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//( (is_non_integral<eT>::value == true) && (val > eT(0)) && (val <= eT(+1e-4)) ) ||
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//( (is_non_integral<eT>::value == true) && (is_signed<eT>::value == true) && (val < eT(0)) && (val >= eT(-1e-4)) )
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(
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cond_rel< is_signed<eT>::value >::leq(val, eT(-100))
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)
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||
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(
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cond_rel< is_non_integral<eT>::value >::gt(val, eT(0))
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&&
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cond_rel< is_non_integral<eT>::value >::leq(val, eT(+1e-4))
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)
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||
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(
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cond_rel< is_non_integral<eT>::value && is_signed<eT>::value >::lt(val, eT(0))
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&&
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cond_rel< is_non_integral<eT>::value && is_signed<eT>::value >::geq(val, eT(-1e-4))
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)
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)
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{
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use_layout_C = true;
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break;
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}
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if(
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// (val >= eT(+10)) || ( (is_signed<eT>::value == true) && (val <= eT(-10)) )
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(val >= eT(+10)) || ( cond_rel< is_signed<eT>::value >::leq(val, eT(-10)) )
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)
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{
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use_layout_B = true;
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}
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}
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if(use_layout_D)
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{
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o.setf(ios::scientific);
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o.setf(ios::right);
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o.unsetf(ios::fixed);
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o.precision(4);
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cell_width = 21;
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}
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else
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if(use_layout_C)
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{
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o.setf(ios::scientific);
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o.setf(ios::right);
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o.unsetf(ios::fixed);
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o.precision(4);
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cell_width = 13;
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}
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else
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if(use_layout_B)
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{
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o.unsetf(ios::scientific);
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o.setf(ios::right);
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o.setf(ios::fixed);
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o.precision(4);
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cell_width = 10;
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}
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else
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{
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o.unsetf(ios::scientific);
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o.setf(ios::right);
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o.setf(ios::fixed);
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o.precision(4);
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cell_width = 9;
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}
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return cell_width;
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}
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//! "better than nothing" settings for complex numbers
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template<typename T>
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inline
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std::streamsize
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arma_ostream::modify_stream(std::ostream& o, const std::complex<T>* data, const uword n_elem)
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{
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arma_ignore(data);
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arma_ignore(n_elem);
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o.unsetf(ios::showbase);
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o.unsetf(ios::uppercase);
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o.fill(' ');
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o.setf(ios::scientific);
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o.setf(ios::showpos);
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o.setf(ios::right);
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o.unsetf(ios::fixed);
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std::streamsize cell_width;
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o.precision(3);
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cell_width = 2 + 2*(1 + 3 + o.precision() + 5) + 1;
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return cell_width;
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}
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template<typename eT>
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inline
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std::streamsize
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arma_ostream::modify_stream(std::ostream& o, typename SpMat<eT>::const_iterator begin, const uword n_elem, const typename arma_not_cx<eT>::result* junk)
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{
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arma_extra_debug_sigprint();
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arma_ignore(junk);
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o.unsetf(ios::showbase);
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o.unsetf(ios::uppercase);
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o.unsetf(ios::showpos);
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o.fill(' ');
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std::streamsize cell_width;
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bool use_layout_B = false;
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bool use_layout_C = false;
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for(typename SpMat<eT>::const_iterator it = begin; it.pos() < n_elem; ++it)
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{
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const eT val = *it;
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if(
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val >= eT(+100) ||
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( (is_signed<eT>::value == true) && (val <= eT(-100)) ) ||
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( (is_non_integral<eT>::value == true) && (val > eT(0)) && (val <= eT(+1e-4)) ) ||
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( (is_non_integral<eT>::value == true) && (is_signed<eT>::value == true) && (val < eT(0)) && (val >= eT(-1e-4)) )
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)
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{
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use_layout_C = true;
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break;
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}
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if(
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(val >= eT(+10)) || ( (is_signed<eT>::value == true) && (val <= eT(-10)) )
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)
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{
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use_layout_B = true;
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}
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}
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if(use_layout_C)
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{
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o.setf(ios::scientific);
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o.setf(ios::right);
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o.unsetf(ios::fixed);
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o.precision(4);
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cell_width = 13;
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}
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else
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if(use_layout_B)
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{
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o.unsetf(ios::scientific);
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o.setf(ios::right);
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o.setf(ios::fixed);
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o.precision(4);
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cell_width = 10;
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}
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else
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{
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o.unsetf(ios::scientific);
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o.setf(ios::right);
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o.setf(ios::fixed);
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o.precision(4);
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cell_width = 9;
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}
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return cell_width;
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}
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//! "better than nothing" settings for complex numbers
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template<typename T>
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inline
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std::streamsize
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arma_ostream::modify_stream(std::ostream& o, typename SpMat<T>::const_iterator begin, const uword n_elem, const typename arma_cx_only<T>::result* junk)
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{
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arma_ignore(begin);
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arma_ignore(n_elem);
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arma_ignore(junk);
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o.unsetf(ios::showbase);
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o.unsetf(ios::uppercase);
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o.fill(' ');
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o.setf(ios::scientific);
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o.setf(ios::showpos);
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o.setf(ios::right);
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o.unsetf(ios::fixed);
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std::streamsize cell_width;
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o.precision(3);
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cell_width = 2 + 2*(1 + 3 + o.precision() + 5) + 1;
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return cell_width;
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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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arma_ostream::print_elem_zero(std::ostream& o, const bool modify)
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{
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if(modify == true)
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{
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const std::streamsize orig_precision = o.precision();
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o.precision(0);
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o << eT(0);
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o.precision(orig_precision);
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}
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else
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{
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o << eT(0);
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}
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}
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//! Print an element to the specified stream
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template<typename eT>
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arma_inline
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void
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arma_ostream::print_elem(std::ostream& o, const eT& x, const bool modify)
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{
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if(is_signed<eT>::value)
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{
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typedef typename promote_type<eT, s16>::result promoted_eT;
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if(x != eT(0))
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{
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if(arma_isfinite(x))
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{
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o << promoted_eT(x);
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}
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else
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{
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o << ( arma_isinf(x) ? ((x <= eT(0)) ? "-inf" : "inf") : "nan" );
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}
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}
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else
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{
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arma_ostream::print_elem_zero<promoted_eT>(o, modify);
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}
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}
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else
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{
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typedef typename promote_type<eT, u16>::result promoted_eT;
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if(x != eT(0))
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{
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o << promoted_eT(x);
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}
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else
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{
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arma_ostream::print_elem_zero<promoted_eT>(o, modify);
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}
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}
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}
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//! Print a complex element to the specified stream
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template<typename T>
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inline
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void
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arma_ostream::print_elem(std::ostream& o, const std::complex<T>& x, const bool modify)
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{
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if( (x.real() != T(0)) || (x.imag() != T(0)) || (modify == false) )
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{
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std::ostringstream ss;
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ss.flags(o.flags());
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//ss.imbue(o.getloc());
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ss.precision(o.precision());
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ss << '(';
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const T a = x.real();
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if(arma_isfinite(a))
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{
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ss << a;
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}
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else
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{
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ss << ( arma_isinf(a) ? ((a <= T(0)) ? "-inf" : "+inf") : "nan" );
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}
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ss << ',';
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const T b = x.imag();
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if(arma_isfinite(b))
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{
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ss << b;
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}
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else
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{
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ss << ( arma_isinf(b) ? ((b <= T(0)) ? "-inf" : "+inf") : "nan" );
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}
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ss << ')';
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o << ss.str();
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}
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else
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{
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o << "(0,0)";
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}
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}
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//! Print a matrix to the specified stream
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template<typename eT>
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inline
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void
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arma_ostream::print(std::ostream& o, const Mat<eT>& m, const bool modify)
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{
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arma_extra_debug_sigprint();
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const arma_ostream_state stream_state(o);
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const std::streamsize cell_width = modify ? arma_ostream::modify_stream(o, m.memptr(), m.n_elem) : o.width();
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const uword m_n_rows = m.n_rows;
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const uword m_n_cols = m.n_cols;
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if(m.is_empty() == false)
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{
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if(m_n_cols > 0)
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{
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if(cell_width > 0)
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{
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for(uword row=0; row < m_n_rows; ++row)
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{
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for(uword col=0; col < m_n_cols; ++col)
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{
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// the cell width appears to be reset after each element is printed,
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// hence we need to restore it
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o.width(cell_width);
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arma_ostream::print_elem(o, m.at(row,col), modify);
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}
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o << '\n';
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}
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}
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else
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{
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for(uword row=0; row < m_n_rows; ++row)
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{
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for(uword col=0; col < m_n_cols-1; ++col)
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{
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arma_ostream::print_elem(o, m.at(row,col), modify);
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o << ' ';
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}
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arma_ostream::print_elem(o, m.at(row, m_n_cols-1), modify);
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o << '\n';
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}
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}
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}
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}
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else
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{
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o << "[matrix size: " << m_n_rows << 'x' << m_n_cols << "]\n";
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}
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o.flush();
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stream_state.restore(o);
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}
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//! Print a cube to the specified stream
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template<typename eT>
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inline
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void
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arma_ostream::print(std::ostream& o, const Cube<eT>& x, const bool modify)
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{
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arma_extra_debug_sigprint();
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const arma_ostream_state stream_state(o);
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const std::streamsize cell_width = modify ? arma_ostream::modify_stream(o, x.memptr(), x.n_elem) : o.width();
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if(x.is_empty() == false)
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{
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for(uword slice=0; slice < x.n_slices; ++slice)
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{
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const Mat<eT> tmp(const_cast<eT*>(x.slice_memptr(slice)), x.n_rows, x.n_cols, false);
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o << "[cube slice " << slice << ']' << '\n';
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o.width(cell_width);
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arma_ostream::print(o, tmp, false);
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o << '\n';
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}
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}
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else
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{
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o << "[cube size: " << x.n_rows << 'x' << x.n_cols << 'x' << x.n_slices << "]\n";
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}
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stream_state.restore(o);
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}
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//! Print a field to the specified stream
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//! Assumes type oT can be printed, i.e. oT has std::ostream& operator<< (std::ostream&, const oT&)
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template<typename oT>
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inline
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void
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arma_ostream::print(std::ostream& o, const field<oT>& x)
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{
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arma_extra_debug_sigprint();
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const arma_ostream_state stream_state(o);
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const std::streamsize cell_width = o.width();
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const uword x_n_rows = x.n_rows;
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const uword x_n_cols = x.n_cols;
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const uword x_n_slices = x.n_slices;
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if(x.is_empty() == false)
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{
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if(x_n_slices == 1)
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{
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for(uword col=0; col<x_n_cols; ++col)
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{
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o << "[field column " << col << ']' << '\n';
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for(uword row=0; row<x_n_rows; ++row)
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{
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o.width(cell_width);
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o << x.at(row,col) << '\n';
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}
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o << '\n';
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}
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}
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else
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{
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for(uword slice=0; slice<x_n_slices; ++slice)
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{
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o << "[field slice " << slice << ']' << '\n';
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for(uword col=0; col<x_n_cols; ++col)
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{
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o << "[field column " << col << ']' << '\n';
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for(uword row=0; row<x_n_rows; ++row)
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{
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o.width(cell_width);
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o << x.at(row,col,slice) << '\n';
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}
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o << '\n';
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}
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o << '\n';
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}
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}
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}
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else
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{
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o << "[field size: " << x_n_rows << 'x' << x_n_cols << 'x' << x_n_slices << "]\n";
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}
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o.flush();
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stream_state.restore(o);
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}
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//! Print a subfield to the specified stream
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//! Assumes type oT can be printed, i.e. oT has std::ostream& operator<< (std::ostream&, const oT&)
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template<typename oT>
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inline
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void
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arma_ostream::print(std::ostream& o, const subview_field<oT>& x)
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{
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arma_extra_debug_sigprint();
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const arma_ostream_state stream_state(o);
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const std::streamsize cell_width = o.width();
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const uword x_n_rows = x.n_rows;
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const uword x_n_cols = x.n_cols;
|
|
const uword x_n_slices = x.n_slices;
|
|
|
|
if(x_n_slices == 1)
|
|
{
|
|
for(uword col=0; col<x_n_cols; ++col)
|
|
{
|
|
o << "[field column " << col << ']' << '\n';
|
|
for(uword row=0; row<x_n_rows; ++row)
|
|
{
|
|
o.width(cell_width);
|
|
o << x.at(row,col) << '\n';
|
|
}
|
|
|
|
o << '\n';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for(uword slice=0; slice<x_n_slices; ++slice)
|
|
{
|
|
o << "[field slice " << slice << ']' << '\n';
|
|
|
|
for(uword col=0; col<x_n_cols; ++col)
|
|
{
|
|
o << "[field column " << col << ']' << '\n';
|
|
|
|
for(uword row=0; row<x_n_rows; ++row)
|
|
{
|
|
o.width(cell_width);
|
|
o << x.at(row,col,slice) << '\n';
|
|
}
|
|
|
|
o << '\n';
|
|
}
|
|
|
|
o << '\n';
|
|
}
|
|
}
|
|
|
|
o.flush();
|
|
stream_state.restore(o);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
arma_ostream::print_dense(std::ostream& o, const SpMat<eT>& m, const bool modify)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const arma_ostream_state stream_state(o);
|
|
|
|
const uword m_n_rows = m.n_rows;
|
|
const uword m_n_cols = m.n_cols;
|
|
|
|
if(m.n_nonzero > 0)
|
|
{
|
|
const std::streamsize cell_width = modify ? modify_stream<eT>(o, m.begin(), m.n_nonzero) : o.width();
|
|
|
|
typename SpMat<eT>::const_iterator begin = m.begin();
|
|
|
|
if(m_n_cols > 0)
|
|
{
|
|
if(cell_width > 0)
|
|
{
|
|
// An efficient row_iterator would make this simpler and faster
|
|
for(uword row=0; row < m_n_rows; ++row)
|
|
{
|
|
for(uword col=0; col < m_n_cols; ++col)
|
|
{
|
|
// the cell width appears to be reset after each element is printed,
|
|
// hence we need to restore it
|
|
o.width(cell_width);
|
|
eT val = eT(0);
|
|
for(typename SpMat<eT>::const_iterator it = begin; it.pos() < m.n_nonzero; ++it)
|
|
{
|
|
if(it.row() == row && it.col() == col)
|
|
{
|
|
val = *it;
|
|
break;
|
|
}
|
|
}
|
|
arma_ostream::print_elem(o,eT(val), modify);
|
|
}
|
|
|
|
o << '\n';
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// An efficient row_iterator would make this simpler and faster
|
|
for(uword row=0; row < m_n_rows; ++row)
|
|
{
|
|
for(uword col=0; col < m_n_cols; ++col)
|
|
{
|
|
eT val = eT(0);
|
|
for(typename SpMat<eT>::const_iterator it = begin; it.pos() < m.n_nonzero; ++it)
|
|
{
|
|
if(it.row() == row && it.col() == col)
|
|
{
|
|
val = *it;
|
|
break;
|
|
}
|
|
}
|
|
arma_ostream::print_elem(o,eT(val), modify);
|
|
o << ' ';
|
|
}
|
|
|
|
o << '\n';
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if(m.n_elem == 0)
|
|
{
|
|
o << "[matrix size: " << m_n_rows << 'x' << m_n_cols << "]\n";
|
|
}
|
|
else
|
|
{
|
|
eT tmp[1];
|
|
tmp[0] = eT(0);
|
|
|
|
const std::streamsize cell_width = modify ? arma_ostream::modify_stream(o, &tmp[0], 1) : o.width();
|
|
|
|
for(uword row=0; row < m_n_rows; ++row)
|
|
{
|
|
for(uword col=0; col < m_n_cols; ++col)
|
|
{
|
|
o.width(cell_width);
|
|
|
|
arma_ostream::print_elem_zero<eT>(o, modify);
|
|
|
|
o << ' ';
|
|
}
|
|
|
|
o << '\n';
|
|
}
|
|
}
|
|
}
|
|
|
|
o.flush();
|
|
stream_state.restore(o);
|
|
}
|
|
|
|
|
|
|
|
template<typename eT>
|
|
inline
|
|
void
|
|
arma_ostream::print(std::ostream& o, const SpMat<eT>& m, const bool modify)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const arma_ostream_state stream_state(o);
|
|
|
|
o.unsetf(ios::showbase);
|
|
o.unsetf(ios::uppercase);
|
|
o.unsetf(ios::showpos);
|
|
o.unsetf(ios::scientific);
|
|
o.setf(ios::right);
|
|
o.setf(ios::fixed);
|
|
o.precision(2);
|
|
|
|
const uword m_n_nonzero = m.n_nonzero;
|
|
|
|
o << "[matrix size: " << m.n_rows << 'x' << m.n_cols << "; n_nonzero: " << m_n_nonzero
|
|
<< "; density: " << ((m.n_elem > 0) ? (double(m_n_nonzero) / double(m.n_elem) * double(100)) : double(0))
|
|
<< "%]\n\n";
|
|
|
|
if(modify == false) { stream_state.restore(o); }
|
|
|
|
if(m_n_nonzero > 0)
|
|
{
|
|
const std::streamsize cell_width = modify ? modify_stream<eT>(o, m.begin(), m_n_nonzero) : o.width();
|
|
|
|
typename SpMat<eT>::const_iterator begin = m.begin();
|
|
typename SpMat<eT>::const_iterator m_end = m.end();
|
|
|
|
while(begin != m_end)
|
|
{
|
|
const uword row = begin.row();
|
|
|
|
// TODO: change the maximum number of spaces before and after each location to be dependent on n_rows and n_cols
|
|
|
|
if(row < 10) { o << " "; }
|
|
else if(row < 100) { o << " "; }
|
|
else if(row < 1000) { o << " "; }
|
|
else if(row < 10000) { o << " "; }
|
|
else if(row < 100000) { o << ' '; }
|
|
|
|
const uword col = begin.col();
|
|
|
|
o << '(' << row << ", " << col << ") ";
|
|
|
|
if(col < 10) { o << " "; }
|
|
else if(col < 100) { o << " "; }
|
|
else if(col < 1000) { o << " "; }
|
|
else if(col < 10000) { o << " "; }
|
|
else if(col < 100000) { o << ' '; }
|
|
|
|
if(cell_width > 0) { o.width(cell_width); }
|
|
|
|
arma_ostream::print_elem(o, eT(*begin), modify);
|
|
o << '\n';
|
|
|
|
++begin;
|
|
}
|
|
|
|
o << '\n';
|
|
}
|
|
|
|
o.flush();
|
|
stream_state.restore(o);
|
|
}
|
|
|
|
|
|
|
|
inline
|
|
void
|
|
arma_ostream::print(std::ostream& o, const SizeMat& S)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const arma_ostream_state stream_state(o);
|
|
|
|
o.unsetf(ios::showbase);
|
|
o.unsetf(ios::uppercase);
|
|
o.unsetf(ios::showpos);
|
|
|
|
o.setf(ios::fixed);
|
|
|
|
o << S.n_rows << 'x' << S.n_cols;
|
|
|
|
stream_state.restore(o);
|
|
}
|
|
|
|
|
|
|
|
inline
|
|
void
|
|
arma_ostream::print(std::ostream& o, const SizeCube& S)
|
|
{
|
|
arma_extra_debug_sigprint();
|
|
|
|
const arma_ostream_state stream_state(o);
|
|
|
|
o.unsetf(ios::showbase);
|
|
o.unsetf(ios::uppercase);
|
|
o.unsetf(ios::showpos);
|
|
|
|
o.setf(ios::fixed);
|
|
|
|
o << S.n_rows << 'x' << S.n_cols << 'x' << S.n_slices;
|
|
|
|
stream_state.restore(o);
|
|
}
|
|
|
|
|
|
|
|
//! @}
|