Implements some missing functions

See merge request oss/rotgen!28

src/svd_model.cpp

@@ -0,0 +1,111 @@
+//==================================================================================================
+/*
+  ROTGEN - Runtime Overlay for Eigen
+  Copyright : CODE RECKONS
+  SPDX-License-Identifier: BSL-1.0
+*/
+//==================================================================================================
+
+//==================================================================================================
+/*
+  This file is a X-File to generate various svd_impl_* definitions variant
+*/
+//==================================================================================================
+
+//==================================================================================================
+// Internal payload
+//==================================================================================================
+struct CLASSNAME::payload
+{
+  using matrix_type = Eigen::Matrix<TYPE,Eigen::Dynamic,Eigen::Dynamic,STORAGE_ORDER>;
+  Eigen::JacobiSVD<matrix_type> data;
+
+  payload(SOURCENAME const& src, int options) : data(src.storage()->data,options) {}
+};
+
+//==================================================================================================
+// Constructors & Special Members
+//==================================================================================================
+CLASSNAME::CLASSNAME(SOURCENAME const& m, int options)
+: storage_(std::make_unique<payload>(m,options))
+{}
+
+
+CLASSNAME::CLASSNAME(CLASSNAME const& o)
+: storage_(std::make_unique<payload>(*o.storage_))
+{
+}
+
+CLASSNAME::CLASSNAME(CLASSNAME&&) noexcept            = default;
+
+CLASSNAME&  CLASSNAME::operator=(CLASSNAME const& o)
+{
+  if (this != &o) storage_->data = o.storage_->data;
+  return *this;
+}
+
+CLASSNAME& CLASSNAME::operator=(CLASSNAME&& o) noexcept
+{
+  if (this != &o) storage_->data = std::move(o.storage_->data);
+  return *this;
+}
+
+CLASSNAME::~CLASSNAME() = default;
+
+int CLASSNAME::rank() const { return storage_->data.rank(); }
+
+SOURCENAME  CLASSNAME::U()  const
+{
+  SOURCENAME result;
+  result.storage()->assign(storage_->data.matrixU());
+  return result;
+}
+
+SOURCENAME  CLASSNAME::U(int r)  const
+{
+  SOURCENAME result;
+  result.storage()->assign( storage_->data.matrixU().leftCols(r) );
+  return result;
+}
+
+SOURCENAME  CLASSNAME::singular_values()  const
+{
+  SOURCENAME result;
+  result.storage()->assign(storage_->data.singularValues());
+  return result;
+}
+
+SOURCENAME  CLASSNAME::singular_values(int r)  const
+{
+  SOURCENAME result;
+  result.storage()->assign(storage_->data.singularValues().head(r));
+  return result;
+}
+
+SOURCENAME  CLASSNAME::D()  const
+{
+  SOURCENAME result;
+  result.storage()->assign(storage_->data.singularValues().asDiagonal());
+  return result;
+}
+
+SOURCENAME  CLASSNAME::D(int r)  const
+{
+  SOURCENAME result;
+  result.storage()->assign(storage_->data.singularValues().head(r).asDiagonal());
+  return result;
+}
+
+SOURCENAME  CLASSNAME::V()  const
+{
+  SOURCENAME result;
+  result.storage()->assign(storage_->data.matrixV());
+  return result;
+}
+
+SOURCENAME  CLASSNAME::V(int r)  const
+{
+  SOURCENAME result;
+  result.storage()->assign( storage_->data.matrixV().leftCols(r) );
+  return result;
+}