From 054aa2dd796411238b8667fafd2ffb40e016469f Mon Sep 17 00:00:00 2001
From: xsjk <xsjk17@outlook.com>
Date: Sun, 22 Dec 2024 15:24:44 +0800
Subject: [PATCH 1/2] Replace std::copy with manual copy to support
 EIGEN_DEVICE_FUNC

---
 Eigen/src/Core/PlainObjectBase.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Eigen/src/Core/PlainObjectBase.h b/Eigen/src/Core/PlainObjectBase.h
index 22f132982..8a5401438 100644
--- a/Eigen/src/Core/PlainObjectBase.h
+++ b/Eigen/src/Core/PlainObjectBase.h
@@ -525,7 +525,10 @@ class PlainObjectBase : public internal::dense_xpr_base<Derived>::type
       eigen_assert(list_size == static_cast<size_t>(RowsAtCompileTime) || RowsAtCompileTime == Dynamic);
       resize(list_size, ColsAtCompileTime);
       if (list.begin()->begin() != nullptr) {
-        std::copy(list.begin()->begin(), list.begin()->end(), m_storage.data());
+        Index index = 0;
+        for (const Scalar& e : *list.begin()) {
+          coeffRef(index++) = e;
+        }
       }
     } else {
       eigen_assert(list.size() == static_cast<size_t>(RowsAtCompileTime) || RowsAtCompileTime == Dynamic);
-- 
GitLab


From 2ae140ebc97854b9ba6aa2d922b9eee88d8e8da0 Mon Sep 17 00:00:00 2001
From: xsjk <xsjk17@outlook.com>
Date: Wed, 25 Dec 2024 00:41:29 +0800
Subject: [PATCH 2/2] Add missing EIGEN_DEVICE_FUNC in DiagonalMatrix.h

---
 Eigen/src/Core/DiagonalMatrix.h | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/Eigen/src/Core/DiagonalMatrix.h b/Eigen/src/Core/DiagonalMatrix.h
index 248e4586f..4115b64fe 100644
--- a/Eigen/src/Core/DiagonalMatrix.h
+++ b/Eigen/src/Core/DiagonalMatrix.h
@@ -389,8 +389,9 @@ struct AssignmentKind<DenseShape, DiagonalShape> {
 // Diagonal matrix to Dense assignment
 template <typename DstXprType, typename SrcXprType, typename Functor>
 struct Assignment<DstXprType, SrcXprType, Functor, Diagonal2Dense> {
-  static void run(DstXprType& dst, const SrcXprType& src,
-                  const internal::assign_op<typename DstXprType::Scalar, typename SrcXprType::Scalar>& /*func*/) {
+  static EIGEN_DEVICE_FUNC void run(
+      DstXprType& dst, const SrcXprType& src,
+      const internal::assign_op<typename DstXprType::Scalar, typename SrcXprType::Scalar>& /*func*/) {
     Index dstRows = src.rows();
     Index dstCols = src.cols();
     if ((dst.rows() != dstRows) || (dst.cols() != dstCols)) dst.resize(dstRows, dstCols);
@@ -399,13 +400,15 @@ struct Assignment<DstXprType, SrcXprType, Functor, Diagonal2Dense> {
     dst.diagonal() = src.diagonal();
   }
 
-  static void run(DstXprType& dst, const SrcXprType& src,
-                  const internal::add_assign_op<typename DstXprType::Scalar, typename SrcXprType::Scalar>& /*func*/) {
+  static EIGEN_DEVICE_FUNC void run(
+      DstXprType& dst, const SrcXprType& src,
+      const internal::add_assign_op<typename DstXprType::Scalar, typename SrcXprType::Scalar>& /*func*/) {
     dst.diagonal() += src.diagonal();
   }
 
-  static void run(DstXprType& dst, const SrcXprType& src,
-                  const internal::sub_assign_op<typename DstXprType::Scalar, typename SrcXprType::Scalar>& /*func*/) {
+  static EIGEN_DEVICE_FUNC void run(
+      DstXprType& dst, const SrcXprType& src,
+      const internal::sub_assign_op<typename DstXprType::Scalar, typename SrcXprType::Scalar>& /*func*/) {
     dst.diagonal() -= src.diagonal();
   }
 };
-- 
GitLab