From b1169ce40cf615ec2cd8eb116ae905b48a849a3a Mon Sep 17 00:00:00 2001
From: Jeff <complexzeros@gmail.com>
Date: Thu, 10 Jul 2014 12:03:42 -0600
Subject: [PATCH] Fixed index that would cause crash with two point, two
 derivative interpolation. Added static_cast.

---
 unsupported/Eigen/src/Splines/SplineFitting.h | 2 +-
 unsupported/test/splines.cpp                  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/unsupported/Eigen/src/Splines/SplineFitting.h b/unsupported/Eigen/src/Splines/SplineFitting.h
index 85de38b257..d3c245fa99 100644
--- a/unsupported/Eigen/src/Splines/SplineFitting.h
+++ b/unsupported/Eigen/src/Splines/SplineFitting.h
@@ -128,7 +128,7 @@ namespace Eigen
 
     newKnotIndex = -1;
   
-    ParameterVectorType temporaryParameters(numParameters);
+    ParameterVectorType temporaryParameters(numParameters + 1);
     KnotVectorType derivativeKnots(numInternalDerivatives);
     for (unsigned int i = 0; i < numAverageKnots - 1; ++i)
     {
diff --git a/unsupported/test/splines.cpp b/unsupported/test/splines.cpp
index 0b43eefb82..97665af969 100644
--- a/unsupported/test/splines.cpp
+++ b/unsupported/test/splines.cpp
@@ -252,7 +252,7 @@ void check_global_interpolation_with_derivatives2d()
   VectorXd derivativeIndices(numPoints);
 
   for (Eigen::DenseIndex i = 0; i < numPoints; ++i)
-    derivativeIndices(i) = i;
+      derivativeIndices(i) = static_cast<double>(i);
 
   const Spline2d spline = SplineFitting<Spline2d>::InterpolateWithDerivatives(
     points, derivatives, derivativeIndices, degree);