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/op_range_meat.hpp       | 96 ++++++++++++++++++++++
 1 file changed, 96 insertions(+)
 create mode 100644 src/armadillo/include/armadillo_bits/op_range_meat.hpp

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

diff --git a/src/armadillo/include/armadillo_bits/op_range_meat.hpp b/src/armadillo/include/armadillo_bits/op_range_meat.hpp
new file mode 100644
index 0000000..a3e66c2
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/op_range_meat.hpp
@@ -0,0 +1,96 @@
+// 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_range
+//! @{
+
+
+
+template<typename T1>
+inline
+void
+op_range::apply(Mat<typename T1::elem_type>& out, const Op<T1,op_range>& in)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const uword dim = in.aux_uword_a;
+  arma_debug_check( (dim > 1), "range(): parameter 'dim' must be 0 or 1" );
+  
+  const quasi_unwrap<T1> U(in.m);
+  const Mat<eT>& X = U.M;
+  
+  if(U.is_alias(out) == false)
+    {
+    op_range::apply_noalias(out, X, dim);
+    }
+  else
+    {
+    Mat<eT> tmp;
+    
+    op_range::apply_noalias(tmp, X, dim);
+    
+    out.steal_mem(tmp);
+    }
+  }
+
+
+
+template<typename eT>
+inline
+void
+op_range::apply_noalias(Mat<eT>& out, const Mat<eT>& X, const uword dim)
+  {
+  arma_extra_debug_sigprint();
+  
+  // TODO: replace with dedicated implementation which finds min and max at the same time
+  out = max(X,dim) - min(X,dim);
+  }
+
+
+
+template<typename T1>
+inline
+typename T1::elem_type
+op_range::vector_range(const T1& expr)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const quasi_unwrap<T1> U(expr);
+  const Mat<eT>& X = U.M;
+  
+  const eT*   X_mem = X.memptr();
+  const uword N     = X.n_elem;
+  
+  if(N == 0)
+    {
+    arma_debug_check(true, "range(): object has no elements");
+    
+    return Datum<eT>::nan;
+    }
+  
+  // TODO: replace with dedicated implementation which finds min and max at the same time
+  return op_max::direct_max(X_mem, N) - op_min::direct_min(X_mem, N);
+  }
+
+
+
+//! @}
-- 
cgit v1.2.1