1 files changed, 112 insertions, 0 deletions
diff --git a/src/armadillo/include/armadillo_bits/op_stddev_meat.hpp b/src/armadillo/include/armadillo_bits/op_stddev_meat.hpp
new file mode 100644
index 0000000..83724bc
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/op_stddev_meat.hpp
@@ -0,0 +1,112 @@
+// 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_stddev
+//! @{
+
+
+
+template<typename T1>
+inline
+void
+op_stddev::apply(Mat<typename T1::pod_type>& out, const mtOp<typename T1::pod_type, T1, op_stddev>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::pod_type out_eT;
+  
+  const uword norm_type = in.aux_uword_a;
+  const uword dim       = in.aux_uword_b;
+  
+  arma_debug_check( (norm_type > 1), "stddev(): parameter 'norm_type' must be 0 or 1" );
+  arma_debug_check( (dim > 1),       "stddev(): parameter 'dim' must be 0 or 1"       );
+  
+  const quasi_unwrap<T1> U(in.m);
+  
+  if(U.is_alias(out))
+    {
+    Mat<out_eT> tmp;
+    
+    op_stddev::apply_noalias(tmp, U.M, norm_type, dim);
+    
+    out.steal_mem(tmp);
+    }
+  else
+    {
+    op_stddev::apply_noalias(out, U.M, norm_type, dim);
+    }
+  }
+
+
+
+template<typename in_eT>
+inline
+void
+op_stddev::apply_noalias(Mat<typename get_pod_type<in_eT>::result>& out, const Mat<in_eT>& X, const uword norm_type, const uword dim)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename get_pod_type<in_eT>::result out_eT;
+  
+  const uword X_n_rows = X.n_rows;
+  const uword X_n_cols = X.n_cols;
+  
+  if(dim == 0)
+    {
+    arma_extra_debug_print("op_stddev::apply_noalias(): dim = 0");
+    
+    out.set_size((X_n_rows > 0) ? 1 : 0, X_n_cols);
+    
+    if(X_n_rows > 0)
+      {
+      out_eT* out_mem = out.memptr();
+      
+      for(uword col=0; col<X_n_cols; ++col)
+        {
+        out_mem[col] = std::sqrt( op_var::direct_var( X.colptr(col), X_n_rows, norm_type ) );
+        }
+      }
+    }
+  else
+  if(dim == 1)
+    {
+    arma_extra_debug_print("op_stddev::apply_noalias(): dim = 1");
+    
+    out.set_size(X_n_rows, (X_n_cols > 0) ? 1 : 0);
+    
+    if(X_n_cols > 0)
+      {
+      podarray<in_eT> dat(X_n_cols);
+      
+      in_eT*  dat_mem = dat.memptr();
+      out_eT* out_mem = out.memptr();
+      
+      for(uword row=0; row<X_n_rows; ++row)
+        {
+        dat.copy_row(X, row);
+        
+        out_mem[row] = std::sqrt( op_var::direct_var( dat_mem, X_n_cols, norm_type) );
+        }
+      }
+    }
+  }
+
+
+
+//! @}
+