From 39edf8e2bfea70f1f753354a8a8e59aa4d6c565a Mon Sep 17 00:00:00 2001
From: Hauke Heibel <hauke.heibel@gmail.com>
Date: Wed, 19 May 2010 18:57:38 +0200
Subject: [PATCH] I was not really aware of the implications on fixed size
 types when the strong inlining is not present. We really need it on MSVC!

---
 Eigen/src/Core/DenseBase.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/Eigen/src/Core/DenseBase.h b/Eigen/src/Core/DenseBase.h
index 728bd87df..e72217c40 100644
--- a/Eigen/src/Core/DenseBase.h
+++ b/Eigen/src/Core/DenseBase.h
@@ -442,11 +442,12 @@ template<typename Derived> class DenseBase
       * Notice that in the case of a plain matrix or vector (not an expression) this function just returns
       * a const reference, in order to avoid a useless copy.
       */
-    inline const typename ei_eval<Derived>::type eval() const
+    EIGEN_STRONG_INLINE const typename ei_eval<Derived>::type eval() const
     { 
-      // MSVC cannot honor strong inlining when the return type 
-      // is a dynamic matrix
-      return typename ei_eval<Derived>::type(derived()); 
+      // Even though MSVC does not honor strong inlining when the return type 
+      // is a dynamic matrix, we desperately need strong inlining for fixed
+      // size types on MSVC.
+      return typename ei_eval<Derived>::type(derived());
     }
 
     template<typename OtherDerived>