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

---
 src/armadillo/include/armadillo_bits/fn_kron.hpp | 104 +++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 src/armadillo/include/armadillo_bits/fn_kron.hpp

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

diff --git a/src/armadillo/include/armadillo_bits/fn_kron.hpp b/src/armadillo/include/armadillo_bits/fn_kron.hpp
new file mode 100644
index 0000000..61b5be2
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/fn_kron.hpp
@@ -0,0 +1,104 @@
+// 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 fn_kron
+//! @{
+
+
+
+template<typename T1, typename T2>
+arma_warn_unused
+arma_inline
+const Glue<T1,T2,glue_kron>
+kron(const Base<typename T1::elem_type,T1>& A, const Base<typename T1::elem_type,T2>& B)
+  {
+  arma_extra_debug_sigprint();
+
+  return Glue<T1, T2, glue_kron>(A.get_ref(), B.get_ref());
+  }
+
+
+
+template<typename T, typename T1, typename T2>
+arma_warn_unused
+inline
+Mat<typename eT_promoter<T1,T2>::eT>
+kron(const Base<std::complex<T>,T1>& X, const Base<T,T2>& Y)
+  {
+  arma_extra_debug_sigprint();
+
+  typedef typename std::complex<T> eT1;
+
+  promote_type<eT1,T>::check();
+  
+  const quasi_unwrap<T1> tmp1(X.get_ref());
+  const quasi_unwrap<T2> tmp2(Y.get_ref());
+  
+  const Mat<eT1>& A = tmp1.M;
+  const Mat<T  >& B = tmp2.M;
+
+  Mat<eT1> out;
+  
+  glue_kron::direct_kron(out, A, B);
+  
+  return out;
+  }
+
+
+
+template<typename T, typename T1, typename T2>
+arma_warn_unused
+inline
+Mat<typename eT_promoter<T1,T2>::eT>
+kron(const Base<T,T1>& X, const Base<std::complex<T>,T2>& Y)
+  {
+  arma_extra_debug_sigprint();
+
+  typedef typename std::complex<T> eT2;  
+
+  promote_type<T,eT2>::check();
+  
+  const quasi_unwrap<T1> tmp1(X.get_ref());
+  const quasi_unwrap<T2> tmp2(Y.get_ref());
+  
+  const Mat<T  >& A = tmp1.M;
+  const Mat<eT2>& B = tmp2.M;
+
+  Mat<eT2> out;
+  
+  glue_kron::direct_kron(out, A, B);
+  
+  return out;
+  }
+
+
+
+template<typename T1, typename T2>
+arma_warn_unused
+arma_inline
+const SpGlue<T1, T2, spglue_kron>
+kron(const SpBase<typename T1::elem_type,T1>& A, const SpBase<typename T1::elem_type,T2>& B)
+  {
+  arma_extra_debug_sigprint();
+  
+  return SpGlue<T1, T2, spglue_kron>(A.get_ref(), B.get_ref());
+  }
+
+
+
+//! @}
-- 
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