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diff --git a/src/armadillo/include/armadillo_bits/spop_misc_meat.hpp b/src/armadillo/include/armadillo_bits/spop_misc_meat.hpp
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index 0000000..1ef51cc
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+++ b/src/armadillo/include/armadillo_bits/spop_misc_meat.hpp
@@ -0,0 +1,596 @@
+// 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 spop_misc
+//! @{
+
+
+
+namespace priv
+  {
+  template<typename eT>
+  struct functor_scalar_times
+    {
+    const eT k;
+    
+    functor_scalar_times(const eT in_k) : k(in_k) {}
+    
+    arma_inline eT operator()(const eT val) const { return val * k; }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_scalar_times::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_scalar_times>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  if(in.aux != eT(0))
+    {
+    out.init_xform(in.m, priv::functor_scalar_times<eT>(in.aux));
+    }
+  else
+    {
+    const SpProxy<T1> P(in.m);
+    
+    out.zeros( P.get_n_rows(), P.get_n_cols() );
+    }
+  }
+
+
+
+namespace priv
+  {
+  template<typename T>
+  struct functor_cx_scalar_times
+    {
+    typedef std::complex<T> out_eT;
+    
+    const out_eT k;
+    
+    functor_cx_scalar_times(const out_eT in_k) : k(in_k) {}
+    
+    arma_inline out_eT operator()(const T val) const { return val * k; }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_cx_scalar_times::apply(SpMat< std::complex<typename T1::pod_type> >& out, const mtSpOp< std::complex<typename T1::pod_type>, T1, spop_cx_scalar_times >& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::pod_type         T;
+  typedef typename std::complex<T> out_eT;
+  
+  if(in.aux_out_eT != out_eT(0))
+    {
+    out.init_xform_mt(in.m, priv::functor_cx_scalar_times<T>(in.aux_out_eT));
+    }
+  else
+    {
+    const SpProxy<T1> P(in.m);
+    
+    out.zeros( P.get_n_rows(), P.get_n_cols() );
+    }
+  }
+
+
+
+namespace priv
+  {
+  struct functor_square
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return val*val; }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_square::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_square>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_square());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_sqrt
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return eop_aux::sqrt(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_sqrt::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_sqrt>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_sqrt());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_abs
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return eop_aux::arma_abs(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_abs::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_abs>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_abs());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_cx_abs
+    {
+    template<typename T>
+    arma_inline T operator()(const std::complex<T>& val) const { return std::abs(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_cx_abs::apply(SpMat<typename T1::pod_type>& out, const mtSpOp<typename T1::pod_type, T1, spop_cx_abs>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform_mt(in.m, priv::functor_cx_abs());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_arg
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return arma_arg<eT>::eval(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_arg::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_arg>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_arg());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_cx_arg
+    {
+    template<typename T>
+    arma_inline T operator()(const std::complex<T>& val) const { return std::arg(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_cx_arg::apply(SpMat<typename T1::pod_type>& out, const mtSpOp<typename T1::pod_type, T1, spop_cx_arg>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform_mt(in.m, priv::functor_cx_arg());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_real
+    {
+    template<typename T>
+    arma_inline T operator()(const std::complex<T>& val) const { return val.real(); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_real::apply(SpMat<typename T1::pod_type>& out, const mtSpOp<typename T1::pod_type, T1, spop_real>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform_mt(in.m, priv::functor_real());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_imag
+    {
+    template<typename T>
+    arma_inline T operator()(const std::complex<T>& val) const { return val.imag(); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_imag::apply(SpMat<typename T1::pod_type>& out, const mtSpOp<typename T1::pod_type, T1, spop_imag>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform_mt(in.m, priv::functor_imag());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_conj
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return eop_aux::conj(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_conj::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_conj>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_conj());
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_repelem::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1, spop_repelem>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const unwrap_spmat<T1> U(in.m);
+  const SpMat<eT>& X =   U.M;
+  
+  const uword copies_per_row = in.aux_uword_a;
+  const uword copies_per_col = in.aux_uword_b;
+  
+  const uword out_n_rows = X.n_rows * copies_per_row;
+  const uword out_n_cols = X.n_cols * copies_per_col;
+  const uword out_nnz    = X.n_nonzero * copies_per_row * copies_per_col;
+  
+  if( (out_n_rows > 0) && (out_n_cols > 0) && (out_nnz > 0) )
+    {
+    umat    locs(2, out_nnz, arma_nozeros_indicator());
+    Col<eT> vals(   out_nnz, arma_nozeros_indicator());
+    
+    uword* locs_mem = locs.memptr();
+    eT*    vals_mem = vals.memptr();
+    
+    typename SpMat<eT>::const_iterator X_it  = X.begin();
+    typename SpMat<eT>::const_iterator X_end = X.end();
+    
+    for(; X_it != X_end; ++X_it)
+      {
+      const uword col_base = copies_per_col * X_it.col();
+      const uword row_base = copies_per_row * X_it.row();
+      
+      const eT X_val = (*X_it);
+      
+      for(uword cols = 0; cols < copies_per_col; cols++)
+      for(uword rows = 0; rows < copies_per_row; rows++)
+        {
+        (*locs_mem) = row_base + rows;  ++locs_mem;
+        (*locs_mem) = col_base + cols;  ++locs_mem;
+        
+        (*vals_mem) = X_val;  ++vals_mem;
+        }
+      }
+    
+    out = SpMat<eT>(locs, vals, out_n_rows, out_n_cols);
+    }
+  else
+    {
+    out.zeros(out_n_rows, out_n_cols);
+    }
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_reshape::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1, spop_reshape>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out = in.m;
+  
+  out.reshape(in.aux_uword_a, in.aux_uword_b);
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_resize::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1, spop_resize>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out = in.m;
+  
+  out.resize(in.aux_uword_a, in.aux_uword_b);
+  }
+
+
+
+namespace priv
+  {
+  struct functor_floor
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return eop_aux::floor(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_floor::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_floor>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_floor());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_ceil
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return eop_aux::ceil(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_ceil::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_ceil>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_ceil());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_round
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return eop_aux::round(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_round::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_round>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_round());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_trunc
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return eop_aux::trunc(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_trunc::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_trunc>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_trunc());
+  }
+
+
+
+namespace priv
+  {
+  struct functor_sign
+    {
+    template<typename eT>
+    arma_inline eT operator()(const eT val) const { return arma_sign(val); }
+    };
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_sign::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_sign>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out.init_xform(in.m, priv::functor_sign());
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_diagvec::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_diagvec>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const unwrap_spmat<T1> U(in.m);
+  
+  const SpMat<eT>& X = U.M;
+  
+  const uword a = in.aux_uword_a;
+  const uword b = in.aux_uword_b;
+  
+  const uword row_offset = (b >  0) ? a : 0;
+  const uword col_offset = (b == 0) ? a : 0;
+  
+  arma_debug_check_bounds
+    (
+    ((row_offset > 0) && (row_offset >= X.n_rows)) || ((col_offset > 0) && (col_offset >= X.n_cols)),
+    "diagvec(): requested diagonal out of bounds"
+    );
+  
+  const uword len = (std::min)(X.n_rows - row_offset, X.n_cols - col_offset);
+  
+  Col<eT> cache(len, arma_nozeros_indicator());
+  eT* cache_mem = cache.memptr();
+  
+  uword n_nonzero = 0;
+  
+  for(uword i=0; i < len; ++i)
+    {
+    const eT val = X.at(i + row_offset, i + col_offset);
+    
+    cache_mem[i] = val;
+    
+    n_nonzero += (val != eT(0)) ? uword(1) : uword(0);
+    }
+  
+  out.reserve(len, 1, n_nonzero);
+  
+  uword count = 0;
+  for(uword i=0; i < len; ++i)
+    {
+    const eT val = cache_mem[i];
+    
+    if(val != eT(0))
+      {
+      access::rw(out.row_indices[count]) = i;
+      access::rw(out.values[count])      = val;
+      ++count;
+      }
+    }
+  
+  access::rw(out.col_ptrs[0]) = 0;
+  access::rw(out.col_ptrs[1]) = n_nonzero;
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_flipud::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_flipud>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out = reverse(in.m, 0);
+  }
+
+
+
+template<typename T1>
+inline
+void
+spop_fliplr::apply(SpMat<typename T1::elem_type>& out, const SpOp<T1,spop_fliplr>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  out = reverse(in.m, 1);
+  }
+
+
+
+//! @}