From 48b8ace517ac61a214cb7d2ad782c67c8a411744 Mon Sep 17 00:00:00 2001
From: Jens Mueller <jens.k.mueller@gmx.de>
Date: Thu, 27 May 2010 17:02:24 +0200
Subject: [PATCH] Fix SparseMatrix/SparseVector::sum()

SparseMatrix/SparseVector::sum() uses Map to compute the sum. But Map expects a
pointer.
---
 Eigen/src/Sparse/SparseRedux.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Eigen/src/Sparse/SparseRedux.h b/Eigen/src/Sparse/SparseRedux.h
index 14de4210a..a243be6ab 100644
--- a/Eigen/src/Sparse/SparseRedux.h
+++ b/Eigen/src/Sparse/SparseRedux.h
@@ -42,7 +42,7 @@ typename ei_traits<SparseMatrix<_Scalar,_Options> >::Scalar
 SparseMatrix<_Scalar,_Options>::sum() const
 {
   ei_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix");
-  return Matrix<Scalar,1,Dynamic>::Map(m_data.value(0), m_data.size()).sum();
+  return Matrix<Scalar,1,Dynamic>::Map(&m_data.value(0), m_data.size()).sum();
 }
 
 template<typename _Scalar, int _Options>
@@ -50,7 +50,7 @@ typename ei_traits<SparseVector<_Scalar,_Options> >::Scalar
 SparseVector<_Scalar,_Options>::sum() const
 {
   ei_assert(rows()>0 && cols()>0 && "you are using a non initialized matrix");
-  return Matrix<Scalar,1,Dynamic>::Map(m_data.value(0), m_data.size()).sum();
+  return Matrix<Scalar,1,Dynamic>::Map(&m_data.value(0), m_data.size()).sum();
 }
 
 #endif // EIGEN_SPARSEREDUX_H