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diff --git a/src/armadillo/include/armadillo_bits/op_chol_meat.hpp b/src/armadillo/include/armadillo_bits/op_chol_meat.hpp
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index 0000000..ebc6448
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/op_chol_meat.hpp
@@ -0,0 +1,74 @@
+// 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_chol
+//! @{
+
+
+
+template<typename T1>
+inline
+void
+op_chol::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_chol>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  const bool status = op_chol::apply_direct(out, X.m, X.aux_uword_a);
+  
+  if(status == false)
+    {
+    out.soft_reset();
+    arma_stop_runtime_error("chol(): decomposition failed");
+    }
+  }
+
+
+
+template<typename T1>
+inline
+bool
+op_chol::apply_direct(Mat<typename T1::elem_type>& out, const Base<typename T1::elem_type,T1>& A_expr, const uword layout)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  out = A_expr.get_ref();
+  
+  arma_debug_check( (out.is_square() == false), "chol(): given matrix must be square sized", [&](){ out.soft_reset(); } );
+  
+  if(out.is_empty())  { return true; }
+  
+  if((arma_config::debug) && (auxlib::rudimentary_sym_check(out) == false))
+    {
+    if(is_cx<eT>::no )  { arma_debug_warn_level(1, "chol(): given matrix is not symmetric"); }
+    if(is_cx<eT>::yes)  { arma_debug_warn_level(1, "chol(): given matrix is not hermitian"); }
+    }
+  
+  uword KD = 0;
+  
+  const bool is_band = arma_config::optimise_band && ((auxlib::crippled_lapack(out)) ? false : ((layout == 0) ? band_helper::is_band_upper(KD, out, uword(32)) : band_helper::is_band_lower(KD, out, uword(32))));
+  
+  const bool status = (is_band) ? auxlib::chol_band(out, KD, layout) : auxlib::chol(out, layout);
+  
+  return status;
+  }
+
+
+
+//! @}