From e8e1084267161d831c9b132bfffbccb9b4f25d9a Mon Sep 17 00:00:00 2001
From: Benoit Jacob <jacob.benoit.1@gmail.com>
Date: Tue, 13 Jan 2009 15:31:06 +0000
Subject: [PATCH] add EIGEN_CWISE_PLUGIN support for extending class Cwise

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

diff --git a/Eigen/src/Core/Cwise.h b/Eigen/src/Core/Cwise.h
index eef7ef02c..0e92dce4e 100644
--- a/Eigen/src/Core/Cwise.h
+++ b/Eigen/src/Core/Cwise.h
@@ -171,6 +171,11 @@ template<typename ExpressionType> class Cwise
     const EIGEN_CWISE_COMP_TO_SCALAR_RETURN_TYPE(std::not_equal_to)
     operator!=(Scalar s) const;
 
+    // allow to extend Cwise outside Eigen
+    #ifdef EIGEN_CWISE_PLUGIN
+    #include EIGEN_CWISE_PLUGIN
+    #endif
+
   protected:
     ExpressionTypeNested m_matrix;
 };