From 4a4284351365554708b4801d408456f0b360c507 Mon Sep 17 00:00:00 2001
From: Christoph Hertzberg <chtz@informatik.uni-bremen.de>
Date: Wed, 16 Oct 2013 13:08:09 +0200
Subject: [PATCH] Make index type of Triplet default to SparseMatrix::Index as
 suggested by Kolja Brix. Fixes bug #665.

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

diff --git a/Eigen/src/SparseCore/SparseUtil.h b/Eigen/src/SparseCore/SparseUtil.h
index 064a40707..05023858b 100644
--- a/Eigen/src/SparseCore/SparseUtil.h
+++ b/Eigen/src/SparseCore/SparseUtil.h
@@ -143,7 +143,7 @@ template<typename T> struct plain_matrix_type<T,Sparse>
   *
   * \sa SparseMatrix::setFromTriplets()
   */
-template<typename Scalar, typename Index=unsigned int>
+template<typename Scalar, typename Index=typename SparseMatrix<Scalar>::Index >
 class Triplet
 {
 public: