From 992cc92bd20a9ec0d2f3e25571a8c429b2163c7b Mon Sep 17 00:00:00 2001
From: Ivan Novikov <ivan.novikov@kit.edu>
Date: Fri, 21 Jun 2024 11:44:42 +0200
Subject: [PATCH] Fix an off-by-one error in Tools::ddilog

---
 src/tools.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tools.cc b/src/tools.cc
index 6cac78b..e553eb0 100644
--- a/src/tools.cc
+++ b/src/tools.cc
@@ -368,7 +368,7 @@ namespace ql {
     const TMass H = Y+Y-_one;
     const TMass ALFA = H+H;
     TMass B1 = _zero, B2 = _zero, B0 = _zero;
-    for (int i = _C.size(); i >= 0; i--)
+    for (int i = _C.size() - 1; i >= 0; i--)
       {
         B0 = _C[i]+ALFA*B1-B2;
         B2 = B1;