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diff --git a/src/armadillo/include/armadillo_bits/injector_meat.hpp b/src/armadillo/include/armadillo_bits/injector_meat.hpp
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@@ -0,0 +1,379 @@
+// SPDX-License-Identifier: Apache-2.0
+// 
+// Copyright 2008-2016 Conrad Sanderson (http://conradsanderson.id.au)
+// Copyright 2008-2016 National ICT Australia (NICTA)
+// 
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// 
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ------------------------------------------------------------------------
+
+
+//! \addtogroup injector
+//! @{
+
+
+
+template<typename T1>
+inline
+mat_injector<T1>::mat_injector(T1& in_parent, const typename mat_injector<T1>::elem_type val)
+  : parent(in_parent)
+  {
+  arma_extra_debug_sigprint();
+  
+  values.reserve(16);
+  rowend.reserve(16);
+  
+  insert(val);
+  }
+
+
+
+template<typename T1>
+inline
+mat_injector<T1>::mat_injector(T1& in_parent, const injector_end_of_row<>&)
+  : parent(in_parent)
+  {
+  arma_extra_debug_sigprint();
+  
+  values.reserve(16);
+  rowend.reserve(16);
+  
+  end_of_row();
+  }
+
+
+
+template<typename T1>
+inline
+mat_injector<T1>::~mat_injector()
+  {
+  arma_extra_debug_sigprint();
+  
+  const uword N = values.size();
+  
+  if(N == 0)  { return; }
+  
+  uword n_rows = 1;
+  uword n_cols = 0;
+  
+  for(uword i=0; i<N; ++i)  { n_rows += (rowend[i]) ? uword(1) : uword(0); }
+  
+  uword n_cols_in_row = 0;
+  
+  for(uword i=0; i<N; ++i)
+    {
+    if(rowend[i])
+      {
+      n_cols        = (std::max)(n_cols, n_cols_in_row);
+      n_cols_in_row = 0;
+      }
+    else
+      {
+      ++n_cols_in_row;
+      }
+    }
+  
+  n_rows = (rowend[N-1]) ? (n_rows-1) : n_rows;
+  n_cols = (std::max)(n_cols, n_cols_in_row);
+  
+  if(is_Row<T1>::value)
+    {
+    arma_debug_check( (n_rows > 1), "matrix initialisation: incompatible dimensions" );
+    
+    parent.zeros(1,n_cols);
+    
+    uword col = 0;
+    
+    for(uword i=0; i<N; ++i)
+      {
+      if(rowend[i])
+        {
+        break;
+        }
+      else
+        {
+        parent.at(col) = values[i];
+        ++col;
+        }
+      }
+    }
+  else
+  if(is_Col<T1>::value)
+    {
+    const bool is_vec = ((n_cols == 1) || (n_rows == 1));
+    
+    arma_debug_check( (is_vec == false), "matrix initialisation: incompatible dimensions" );
+    
+    if(n_cols == 1)
+      {
+      parent.zeros(n_rows,1);
+      
+      uword row = 0;
+      
+      for(uword i=0; i<N; ++i)
+        {
+        if(rowend[i])
+          {
+          if((i > 0) && rowend[i-1])  { ++row; }
+          }
+        else
+          {
+          parent.at(row) = values[i];
+          ++row;
+          }
+        }
+      }
+    else
+    if(n_rows == 1)
+      {
+      parent.zeros(n_cols,1);
+      
+      uword row = 0;
+      
+      for(uword i=0; i<N; ++i)
+        {
+        if(rowend[i])
+          {
+          break;
+          }
+        else
+          {
+          parent.at(row) = values[i];
+          ++row;
+          }
+        }
+      }
+    }
+  else
+    {
+    parent.zeros(n_rows,n_cols);
+    
+    uword row = 0;
+    uword col = 0;
+    
+    for(uword i=0; i<N; ++i)
+      {
+      if(rowend[i])
+        {
+        ++row;
+        col = 0;
+        }
+      else
+        {
+        parent.at(row,col) = values[i];
+        ++col;
+        }
+      }
+    }
+  }
+
+
+
+template<typename T1>
+inline
+void
+mat_injector<T1>::insert(const typename mat_injector<T1>::elem_type val) const
+  {
+  arma_extra_debug_sigprint();
+  
+  values.push_back(val    );
+  rowend.push_back(char(0));
+  }
+
+
+
+
+template<typename T1>
+inline
+void
+mat_injector<T1>::end_of_row() const
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename mat_injector<T1>::elem_type eT;
+  
+  values.push_back(  eT(0));
+  rowend.push_back(char(1));
+  }
+
+
+
+template<typename T1>
+inline
+const mat_injector<T1>&
+operator<<(const mat_injector<T1>& ref, const typename mat_injector<T1>::elem_type val)
+  {
+  arma_extra_debug_sigprint();
+  
+  ref.insert(val);
+  
+  return ref;
+  }
+
+
+
+template<typename T1>
+inline
+const mat_injector<T1>&
+operator<<(const mat_injector<T1>& ref, const injector_end_of_row<>&)
+  {
+  arma_extra_debug_sigprint();
+  
+  ref.end_of_row();
+  
+  return ref;
+  }
+
+
+
+//
+//
+//
+
+
+
+template<typename T1>
+inline
+field_injector<T1>::field_injector(T1& in_parent, const typename field_injector<T1>::object_type& val)
+  : parent(in_parent)
+  {
+  arma_extra_debug_sigprint();
+  
+  insert(val);
+  }
+
+
+
+template<typename T1>
+inline
+field_injector<T1>::field_injector(T1& in_parent, const injector_end_of_row<>&)
+  : parent(in_parent)
+  {
+  arma_extra_debug_sigprint();
+  
+  end_of_row();
+  }
+
+
+
+template<typename T1>
+inline
+field_injector<T1>::~field_injector()
+  {
+  arma_extra_debug_sigprint();
+  
+  const uword N = values.size();
+  
+  if(N == 0)  { return; }
+  
+  uword n_rows = 1;
+  uword n_cols = 0;
+  
+  for(uword i=0; i<N; ++i)  { n_rows += (rowend[i]) ? uword(1) : uword(0); }
+  
+  uword n_cols_in_row = 0;
+  
+  for(uword i=0; i<N; ++i)
+    {
+    if(rowend[i])
+      {
+      n_cols        = (std::max)(n_cols, n_cols_in_row);
+      n_cols_in_row = 0;
+      }
+    else
+      {
+      ++n_cols_in_row;
+      }
+    }
+  
+  n_rows = (rowend[N-1]) ? (n_rows-1) : n_rows;
+  n_cols = (std::max)(n_cols, n_cols_in_row);
+  
+  parent.set_size(n_rows,n_cols);
+  
+  uword row = 0;
+  uword col = 0;
+  
+  for(uword i=0; i<N; ++i)
+    {
+    if(rowend[i])
+      {
+      ++row;
+      col = 0;
+      }
+    else
+      {
+      parent.at(row,col) = std::move(values[i]);
+      ++col;
+      }
+    }
+  }
+
+
+
+template<typename T1>
+inline
+void
+field_injector<T1>::insert(const typename field_injector<T1>::object_type& val) const
+  {
+  arma_extra_debug_sigprint();
+  
+  values.push_back(val    );
+  rowend.push_back(char(0));
+  }
+
+
+
+
+template<typename T1>
+inline
+void
+field_injector<T1>::end_of_row() const
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename field_injector<T1>::object_type oT;
+  
+  values.push_back(oT()   );
+  rowend.push_back(char(1));
+  }
+
+
+
+template<typename T1>
+inline
+const field_injector<T1>&
+operator<<(const field_injector<T1>& ref, const typename field_injector<T1>::object_type& val)
+  {
+  arma_extra_debug_sigprint();
+  
+  ref.insert(val);
+  
+  return ref;
+  }
+
+
+
+template<typename T1>
+inline
+const field_injector<T1>&
+operator<<(const field_injector<T1>& ref, const injector_end_of_row<>&)
+  {
+  arma_extra_debug_sigprint();
+  
+  ref.end_of_row();
+  
+  return ref;
+  }
+
+
+
+//! @}