From eda5bc26f44ee9a6f83dcf8c91f17296d7fc509d Mon Sep 17 00:00:00 2001
From: Nao Pross <np@0hm.ch>
Date: Mon, 12 Feb 2024 14:52:43 +0100
Subject: Move into version control

---
 .../include/armadillo_bits/glue_max_meat.hpp       | 183 +++++++++++++++++++++
 1 file changed, 183 insertions(+)
 create mode 100644 src/armadillo/include/armadillo_bits/glue_max_meat.hpp

(limited to 'src/armadillo/include/armadillo_bits/glue_max_meat.hpp')

diff --git a/src/armadillo/include/armadillo_bits/glue_max_meat.hpp b/src/armadillo/include/armadillo_bits/glue_max_meat.hpp
new file mode 100644
index 0000000..b1e52c2
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/glue_max_meat.hpp
@@ -0,0 +1,183 @@
+// 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 glue_max
+//! @{
+
+
+
+template<typename T1, typename T2>
+inline
+void
+glue_max::apply(Mat<typename T1::elem_type>& out, const Glue<T1, T2, glue_max>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const Proxy<T1> PA(X.A);
+  const Proxy<T2> PB(X.B);
+  
+  if( (PA.is_alias(out) && PA.has_subview) || (PB.is_alias(out) && PB.has_subview) )
+    {
+    Mat<eT> tmp;
+    
+    glue_max::apply(tmp, PA, PB);
+    
+    out.steal_mem(tmp);
+    }
+  else
+    {
+    glue_max::apply(out, PA, PB);
+    }
+  }
+
+
+
+template<typename eT, typename T1, typename T2>
+inline
+void
+glue_max::apply(Mat<eT>& out, const Proxy<T1>& PA, const Proxy<T2>& PB)
+  {
+  arma_extra_debug_sigprint();
+  
+  const uword n_rows = PA.get_n_rows();
+  const uword n_cols = PA.get_n_cols();
+  
+  arma_debug_assert_same_size(n_rows, n_cols, PB.get_n_rows(), PB.get_n_cols(), "element-wise max()");
+  
+  const arma_gt_comparator<eT> comparator;
+  
+  out.set_size(n_rows, n_cols);
+  
+  eT* out_mem = out.memptr();
+  
+  if( (Proxy<T1>::use_at == false) && (Proxy<T2>::use_at == false) )
+    {
+    typename Proxy<T1>::ea_type A = PA.get_ea();
+    typename Proxy<T2>::ea_type B = PB.get_ea();
+    
+    const uword N = PA.get_n_elem();
+    
+    for(uword i=0; i<N; ++i)
+      {
+      const eT Ai = A[i];
+      const eT Bi = B[i];
+      
+      out_mem[i] = comparator(Ai,Bi) ? Ai : Bi;
+      }
+    }
+  else
+    {
+    for(uword col=0; col < n_cols; ++col)
+    for(uword row=0; row < n_rows; ++row)
+      {
+      const eT Ai = PA.at(row,col);
+      const eT Bi = PB.at(row,col);
+      
+      *out_mem = comparator(Ai,Bi) ? Ai : Bi;
+      
+      ++out_mem;
+      }
+    }
+  }
+
+
+
+template<typename T1, typename T2>
+inline
+void
+glue_max::apply(Cube<typename T1::elem_type>& out, const GlueCube<T1, T2, glue_max>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const ProxyCube<T1> PA(X.A);
+  const ProxyCube<T2> PB(X.B);
+  
+  if( (PA.is_alias(out) && PA.has_subview) || (PB.is_alias(out) && PB.has_subview) )
+    {
+    Cube<eT> tmp;
+    
+    glue_max::apply(tmp, PA, PB);
+    
+    out.steal_mem(tmp);
+    }
+  else
+    {
+    glue_max::apply(out, PA, PB);
+    }
+  }
+
+
+
+template<typename eT, typename T1, typename T2>
+inline
+void
+glue_max::apply(Cube<eT>& out, const ProxyCube<T1>& PA, const ProxyCube<T2>& PB)
+  {
+  arma_extra_debug_sigprint();
+  
+  const uword n_rows   = PA.get_n_rows();
+  const uword n_cols   = PA.get_n_cols();
+  const uword n_slices = PA.get_n_slices();
+  
+  arma_debug_assert_same_size(n_rows, n_cols, n_slices, PB.get_n_rows(), PB.get_n_cols(), PB.get_n_slices(), "element-wise max()");
+  
+  const arma_gt_comparator<eT> comparator;
+  
+  out.set_size(n_rows, n_cols, n_slices);
+  
+  eT* out_mem = out.memptr();
+  
+  if( (ProxyCube<T1>::use_at == false) && (ProxyCube<T2>::use_at == false) )
+    {
+    typename ProxyCube<T1>::ea_type A = PA.get_ea();
+    typename ProxyCube<T2>::ea_type B = PB.get_ea();
+    
+    const uword N = PA.get_n_elem();
+    
+    for(uword i=0; i<N; ++i)
+      {
+      const eT Ai = A[i];
+      const eT Bi = B[i];
+      
+      out_mem[i] = comparator(Ai,Bi) ? Ai : Bi;
+      }
+    }
+  else
+    {
+    for(uword slice=0; slice < n_slices; ++slice)
+    for(uword   col=0;   col < n_cols;   ++col  )
+    for(uword   row=0;   row < n_rows;   ++row  )
+      {
+      const eT Ai = PA.at(row,col,slice);
+      const eT Bi = PB.at(row,col,slice);
+      
+      *out_mem = comparator(Ai,Bi) ? Ai : Bi;
+      
+      ++out_mem;
+      }
+    }
+  }
+
+
+
+//! @}
-- 
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