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/fn_sqrtmat.hpp          | 125 +++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 src/armadillo/include/armadillo_bits/fn_sqrtmat.hpp

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

diff --git a/src/armadillo/include/armadillo_bits/fn_sqrtmat.hpp b/src/armadillo/include/armadillo_bits/fn_sqrtmat.hpp
new file mode 100644
index 0000000..882aa15
--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/fn_sqrtmat.hpp
@@ -0,0 +1,125 @@
+// 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_sqrtmat
+//! @{
+
+
+
+template<typename T1>
+arma_warn_unused
+arma_inline
+typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::no), const mtOp<std::complex<typename T1::elem_type>, T1, op_sqrtmat> >::result
+sqrtmat(const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return mtOp<std::complex<typename T1::elem_type>, T1, op_sqrtmat>(X.get_ref());
+  }
+
+
+
+template<typename T1>
+arma_warn_unused
+arma_inline
+typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::yes), const Op<T1, op_sqrtmat_cx> >::result
+sqrtmat(const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Op<T1, op_sqrtmat_cx>(X.get_ref());
+  }
+
+
+
+template<typename T1>
+inline
+typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::no), bool >::result
+sqrtmat(Mat< std::complex<typename T1::elem_type> >& Y, const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  const bool status = op_sqrtmat::apply_direct(Y, X.get_ref());
+  
+  if(status == false)
+    {
+    arma_debug_warn_level(3, "sqrtmat(): given matrix is singular; may not have a square root");
+    }
+  
+  return status;
+  }
+
+
+
+template<typename T1>
+inline
+typename enable_if2< (is_supported_blas_type<typename T1::elem_type>::value && is_cx<typename T1::elem_type>::yes), bool >::result
+sqrtmat(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  const bool status = op_sqrtmat_cx::apply_direct(Y, X.get_ref());
+  
+  if(status == false)
+    {
+    arma_debug_warn_level(3, "sqrtmat(): given matrix is singular; may not have a square root");
+    }
+  
+  return status;
+  }
+
+
+
+//
+
+
+
+template<typename T1>
+arma_warn_unused
+arma_inline
+typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, const Op<T1, op_sqrtmat_sympd> >::result
+sqrtmat_sympd(const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  return Op<T1, op_sqrtmat_sympd>(X.get_ref());
+  }
+
+
+
+template<typename T1>
+inline
+typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
+sqrtmat_sympd(Mat<typename T1::elem_type>& Y, const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  const bool status = op_sqrtmat_sympd::apply_direct(Y, X.get_ref());
+  
+  if(status == false)
+    {
+    Y.soft_reset();
+    arma_debug_warn_level(3, "sqrtmat_sympd(): transformation failed");
+    }
+  
+  return status;
+  }
+
+
+
+//! @}
-- 
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