From 0a6c472335b593a227c3adbcf1d770187449a30f Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 13 Mar 2014 15:44:20 +0100
Subject: A bit of cleaning

---
 Eigen/src/Core/Assign.h | 82 +++++++++++++++++++++++++++++++++----------------
 1 file changed, 56 insertions(+), 26 deletions(-)

(limited to 'Eigen/src/Core/Assign.h')

diff --git a/Eigen/src/Core/Assign.h b/Eigen/src/Core/Assign.h
index 95eb37dd5..0e10f125f 100644
--- a/Eigen/src/Core/Assign.h
+++ b/Eigen/src/Core/Assign.h
@@ -509,7 +509,7 @@ EIGEN_STRONG_INLINE Derived& DenseBase<Derived>
 #ifdef EIGEN_TEST_EVALUATORS
   
   eigen_assert(rows() == other.rows() && cols() == other.cols());
-  internal::call_dense_assignment_loop(derived(),other.derived());
+  internal::call_assignment_no_alias(derived(),other.derived());
   
 #else // EIGEN_TEST_EVALUATORS
 
@@ -530,23 +530,7 @@ EIGEN_STRONG_INLINE Derived& DenseBase<Derived>
 
 namespace internal {
 
-#ifdef EIGEN_TEST_EVALUATORS
-
-// TODO remove this class which is now useless
-
-template<typename Derived, typename OtherDerived>
-struct assign_selector {
-  EIGEN_DEVICE_FUNC
-  static EIGEN_STRONG_INLINE Derived& run(Derived& dst, const OtherDerived& other) {
-    call_assignment(dst, other.derived(), internal::assign_op<typename OtherDerived::Scalar>());
-    return dst;
-  }
-  template<typename ActualDerived, typename ActualOtherDerived>
-  EIGEN_DEVICE_FUNC
-  static EIGEN_STRONG_INLINE Derived& evalTo(ActualDerived& dst, const ActualOtherDerived& other) { other.evalTo(dst); return dst; }
-};
-
-#else // EIGEN_TEST_EVALUATORS
+#ifndef EIGEN_TEST_EVALUATORS
 template<typename Derived, typename OtherDerived,
          bool EvalBeforeAssigning = (int(internal::traits<OtherDerived>::Flags) & EvalBeforeAssigningBit) != 0,
          bool NeedToTranspose = ((int(Derived::RowsAtCompileTime) == 1 && int(OtherDerived::ColsAtCompileTime) == 1)
@@ -585,6 +569,59 @@ struct assign_selector<Derived,OtherDerived,true,true> {
 #endif // EIGEN_TEST_EVALUATORS
 } // end namespace internal
 
+#ifdef EIGEN_TEST_EVALUATORS
+template<typename Derived>
+template<typename OtherDerived>
+EIGEN_DEVICE_FUNC
+EIGEN_STRONG_INLINE Derived& DenseBase<Derived>::operator=(const DenseBase<OtherDerived>& other)
+{
+  internal::call_assignment(derived(), other.derived());
+  return derived();
+}
+
+template<typename Derived>
+EIGEN_DEVICE_FUNC
+EIGEN_STRONG_INLINE Derived& DenseBase<Derived>::operator=(const DenseBase& other)
+{
+  internal::call_assignment(derived(), other.derived());
+  return derived();
+}
+
+template<typename Derived>
+EIGEN_DEVICE_FUNC
+EIGEN_STRONG_INLINE Derived& MatrixBase<Derived>::operator=(const MatrixBase& other)
+{
+  internal::call_assignment(derived(), other.derived());
+  return derived();
+}
+
+template<typename Derived>
+template <typename OtherDerived>
+EIGEN_DEVICE_FUNC
+EIGEN_STRONG_INLINE Derived& MatrixBase<Derived>::operator=(const DenseBase<OtherDerived>& other)
+{
+  internal::call_assignment(derived(), other.derived());
+  return derived();
+}
+
+template<typename Derived>
+template <typename OtherDerived>
+EIGEN_DEVICE_FUNC
+EIGEN_STRONG_INLINE Derived& MatrixBase<Derived>::operator=(const EigenBase<OtherDerived>& other)
+{
+  other.derived().evalTo(derived());
+  return derived();
+}
+
+template<typename Derived>
+template<typename OtherDerived>
+EIGEN_DEVICE_FUNC
+EIGEN_STRONG_INLINE Derived& MatrixBase<Derived>::operator=(const ReturnByValue<OtherDerived>& other)
+{
+  other.derived().evalTo(derived());
+  return derived();
+}
+#else // EIGEN_TEST_EVALUATORS
 template<typename Derived>
 template<typename OtherDerived>
 EIGEN_DEVICE_FUNC
@@ -620,11 +657,7 @@ template <typename OtherDerived>
 EIGEN_DEVICE_FUNC
 EIGEN_STRONG_INLINE Derived& MatrixBase<Derived>::operator=(const EigenBase<OtherDerived>& other)
 {
-#ifdef EIGEN_TEST_EVALUATORS
-  return internal::assign_selector<Derived,OtherDerived>::evalTo(derived(), other.derived());
-#else
   return internal::assign_selector<Derived,OtherDerived,false>::evalTo(derived(), other.derived());
-#endif
 }
 
 template<typename Derived>
@@ -632,12 +665,9 @@ template<typename OtherDerived>
 EIGEN_DEVICE_FUNC
 EIGEN_STRONG_INLINE Derived& MatrixBase<Derived>::operator=(const ReturnByValue<OtherDerived>& other)
 {
-#ifdef EIGEN_TEST_EVALUATORS
-  return internal::assign_selector<Derived,OtherDerived>::evalTo(derived(), other.derived());
-#else
   return internal::assign_selector<Derived,OtherDerived,false>::evalTo(derived(), other.derived());
-#endif
 }
+#endif // EIGEN_TEST_EVALUATORS
 
 } // end namespace Eigen
 
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