From e39ad8badcea55bce7bd0de10fc0d28788141411 Mon Sep 17 00:00:00 2001
From: Charles Schlosser <cs.schlosser@gmail.com>
Date: Sat, 12 Apr 2025 18:54:09 +0000
Subject: [PATCH] fix constexpr in CoreEvaluators.h

---
 Eigen/src/Core/CoreEvaluators.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Eigen/src/Core/CoreEvaluators.h b/Eigen/src/Core/CoreEvaluators.h
index 87eb65bda..e4a74d7f0 100644
--- a/Eigen/src/Core/CoreEvaluators.h
+++ b/Eigen/src/Core/CoreEvaluators.h
@@ -257,7 +257,7 @@ struct evaluator<PlainObjectBase<Derived>> : evaluator_base<Derived> {
   plainobjectbase_evaluator_data<Scalar, OuterStrideAtCompileTime> m_d;
 
  private:
-  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Index getIndex(Index row, Index col) const {
+  EIGEN_DEVICE_FUNC EIGEN_STRONG_INLINE Index constexpr getIndex(Index row, Index col) const {
     return IsRowMajor ? row * m_d.outerStride() + col : row + col * m_d.outerStride();
   }
 };