1 files changed, 110 insertions, 0 deletions
diff --git a/src/armadillo/include/armadillo_bits/op_toeplitz_meat.hpp b/src/armadillo/include/armadillo_bits/op_toeplitz_meat.hpp
new file mode 100644
index 0000000..a06c481
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/op_toeplitz_meat.hpp
@@ -0,0 +1,110 @@
+// 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 op_toeplitz
+//! @{
+
+
+
+template<typename T1>
+inline
+void
+op_toeplitz::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_toeplitz>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const unwrap_check<T1>  tmp(in.m, out);
+  const Mat<eT>& X      = tmp.M;
+  
+  arma_debug_check( ((X.is_vec() == false) && (X.is_empty() == false)), "toeplitz(): given object must be a vector" );
+  
+  const uword N     = X.n_elem;
+  const eT*   X_mem = X.memptr();
+  
+  out.set_size(N,N);
+  
+  for(uword col=0; col < N; ++col)
+    {
+    eT* col_mem = out.colptr(col);
+    
+    uword i;
+    
+    i = col;
+    for(uword row=0; row < col; ++row, --i) { col_mem[row] = X_mem[i]; }
+    
+    i = 0;
+    for(uword row=col; row < N; ++row, ++i) { col_mem[row] = X_mem[i]; }      
+    }
+  }
+
+
+
+template<typename T1>
+inline
+void
+op_toeplitz_c::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_toeplitz_c>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const unwrap_check<T1>  tmp(in.m, out);
+  const Mat<eT>& X      = tmp.M;
+  
+  arma_debug_check( ((X.is_vec() == false) && (X.is_empty() == false)), "circ_toeplitz(): given object must be a vector" );
+  
+  const uword N     = X.n_elem;
+  const eT*   X_mem = X.memptr();
+  
+  out.set_size(N,N);
+  
+  if(X.is_rowvec())
+    {
+    for(uword row=0; row < N; ++row)
+      {
+      uword i;
+      
+      i = row;
+      for(uword col=0; col < row; ++col, --i)  { out.at(row,col) = X_mem[N-i]; }
+      
+      i = 0;
+      for(uword col=row; col < N; ++col, ++i)  { out.at(row,col) = X_mem[i];   }
+      }
+    }
+  else
+    {
+    for(uword col=0; col < N; ++col)
+      {
+      eT* col_mem = out.colptr(col);
+      
+      uword i;
+      
+      i = col;
+      for(uword row=0; row < col; ++row, --i)  { col_mem[row] = X_mem[N-i]; }
+      
+      i = 0;
+      for(uword row=col; row < N; ++row, ++i)  { col_mem[row] = X_mem[i];   }
+      }
+    }
+  }
+
+
+
+//! @}