From dbd12b4cda13b617b58e9ea1b4a505e1ab3acf2f Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Tue, 21 Apr 2015 10:15:36 +0200
Subject: [PATCH] Make sure that BlockImpl<const SparseMatrix> ctor is called
 with the right type

---
 Eigen/src/SparseCore/SparseBlock.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Eigen/src/SparseCore/SparseBlock.h b/Eigen/src/SparseCore/SparseBlock.h
index 778939791..b41e8f15d 100644
--- a/Eigen/src/SparseCore/SparseBlock.h
+++ b/Eigen/src/SparseCore/SparseBlock.h
@@ -285,6 +285,9 @@ public:
   {}
   
   using Base::operator=;
+private:
+  template<typename Derived> BlockImpl(const SparseMatrixBase<Derived>& xpr, Index i);
+  template<typename Derived> BlockImpl(const SparseMatrixBase<Derived>& xpr);
 };
   
 //----------