From 162077d0786278335fc398141773f23494d88fbc Mon Sep 17 00:00:00 2001
From: Felix Schlepper <felix.schlepper@cern.ch>
Date: Wed, 19 Aug 2026 15:00:43 +0200
Subject: [PATCH] Change return type to value_T in getCurvature

This causes all calls where getCurvature is called in an expression to be promoted to double even if TrackParam is float
---
 .../include/ReconstructionDataFormats/TrackParametrization.h    | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/DataFormats/Reconstruction/include/ReconstructionDataFormats/TrackParametrization.h b/DataFormats/Reconstruction/include/ReconstructionDataFormats/TrackParametrization.h
index 918633d914230..ec624ed53ca30 100644
--- a/DataFormats/Reconstruction/include/ReconstructionDataFormats/TrackParametrization.h
+++ b/DataFormats/Reconstruction/include/ReconstructionDataFormats/TrackParametrization.h
@@ -548,7 +548,7 @@ GPUdi() void TrackParametrization<value_T>::getLineParams(o2::math_utils::Interv
 template <typename value_T>
 GPUdi() auto TrackParametrization<value_T>::getCurvature(value_t b) const -> value_t
 {
-  return mAbsCharge ? mP[kQ2Pt] * b * o2::constants::math::B2C : 0.;
+  return mAbsCharge ? mP[kQ2Pt] * b * o2::constants::math::B2C : value_T(0);
 }
 
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