From f11c495d5d630de6473369563a1f6c4077b61f9a Mon Sep 17 00:00:00 2001
From: hristov <hristov@f7af4fe6-9843-0410-8265-dc069ae4e863>
Date: Thu, 4 Dec 2008 10:30:41 +0000
Subject: [PATCH 1/1] Additional protection (Alexander)

---
 STEER/AliSplineFit.cxx | 1 +
 1 file changed, 1 insertion(+)

diff --git a/STEER/AliSplineFit.cxx b/STEER/AliSplineFit.cxx
index 7e60c7790a6..ae375245c01 100644
--- a/STEER/AliSplineFit.cxx
+++ b/STEER/AliSplineFit.cxx
@@ -171,6 +171,7 @@ Double_t   AliSplineFit::Eval(Double_t x, Int_t deriv) const{
   //
   Double_t dx   = x-fX[index];
   Double_t dxc  = fX[index+1]-fX[index];
+  if (dxc<=0)    return 0;
   Double_t y0   = fY0[index];
   Double_t y1   = fY1[index];
   Double_t y01  = fY0[index+1];
-- 
2.39.3