Move into version control

1 files changed, 82 insertions, 0 deletions

diff --git a/src/armadillo/include/armadillo_bits/fn_det.hpp b/src/armadillo/include/armadillo_bits/fn_det.hpp
new file mode 100644
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--- /dev/null
+++ b/src/armadillo/include/armadillo_bits/fn_det.hpp
@@ -0,0 +1,82 @@
+// 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_det
+//! @{
+
+
+
+template<typename T1>
+arma_warn_unused
+inline
+typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, typename T1::elem_type >::result
+det(const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  eT out_val = eT(0);
+  
+  const bool status = op_det::apply_direct(out_val, X.get_ref());
+  
+  if(status == false)
+    {
+    out_val = eT(0);
+    arma_stop_runtime_error("det(): failed to find determinant");
+    }
+  
+  return out_val;
+  }
+
+
+
+template<typename T1>
+inline
+typename enable_if2< is_supported_blas_type<typename T1::elem_type>::value, bool >::result
+det(typename T1::elem_type& out_val, const Base<typename T1::elem_type,T1>& X)
+  {
+  arma_extra_debug_sigprint();
+  
+  typedef typename T1::elem_type eT;
+  
+  const bool status = op_det::apply_direct(out_val, X.get_ref());
+  
+  if(status == false)
+    {
+    out_val = eT(0);
+    arma_debug_warn_level(3, "det(): failed to find determinant");
+    }
+  
+  return status;
+  }
+
+
+
+template<typename T>
+arma_warn_unused
+arma_inline
+typename arma_scalar_only<T>::result
+det(const T& x)
+  {
+  return x;
+  }
+
+
+
+//! @}