From 05ff7e4fd18fb14625aca50d550fb267e2438cd6 Mon Sep 17 00:00:00 2001
From: Tom Eichlersmith <31970302+tomeichlersmith@users.noreply.github.com>
Date: Fri, 20 Sep 2024 08:56:26 -0500
Subject: [PATCH] dont use a float as a for-loop counter

replace this with a while loop instead to be more clear about the possibility of rounding errors affecting performance
---
 TrigScint/src/TrigScint/SimQIE.cxx | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/TrigScint/src/TrigScint/SimQIE.cxx b/TrigScint/src/TrigScint/SimQIE.cxx
index d6179ca75..ab21920e5 100644
--- a/TrigScint/src/TrigScint/SimQIE.cxx
+++ b/TrigScint/src/TrigScint/SimQIE.cxx
@@ -100,8 +100,10 @@ std::vector<int> SimQIE::Out_ADC(QIEInputPulse* pp) {
 int SimQIE::TDC(QIEInputPulse* pp, float T0 = 0) {
   float thr2 = tdc_thr_ / gain_;
   if (pp->Eval(T0) > thr2) return 62;  // when pulse starts high
-  for (float tt = T0; tt < T0 + tau_; tt += 0.1) {
+  float tt = T0;
+  while (tt < T0 + tau_) {
     if (pp->Eval(tt) >= thr2) return ((int)(2 * (tt - T0)));
+    tt += 0.1;
   }
   return 63;  // when pulse remains low all along
 }