From b8f1f5d2a3e164007b6901aa40b0cdc1d42bcf56 Mon Sep 17 00:00:00 2001
From: Julian Lenz <j.j.lenz@swansea.ac.uk>
Date: Fri, 25 Nov 2022 17:45:32 +0000
Subject: [PATCH] Introduce GaugeGroup

---
 Grid/qcd/utils/SUn.h | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Grid/qcd/utils/SUn.h b/Grid/qcd/utils/SUn.h
index 0f7482ae..50a035d4 100644
--- a/Grid/qcd/utils/SUn.h
+++ b/Grid/qcd/utils/SUn.h
@@ -33,9 +33,18 @@ directory
 #define QCD_UTIL_SUN_H
 
 NAMESPACE_BEGIN(Grid);
+namespace GroupName {
+class SU {};
+}  // namespace GroupName
+
+template <int ncolour, class group_name = GroupName::SU>
+class GaugeGroup;
 
 template <int ncolour>
-class SU {
+using SU = GaugeGroup<ncolour, GroupName::SU>;
+
+template <int ncolour, class group_name>
+class GaugeGroup {
  public:
   static const int Dimension = ncolour;
   static const int AdjointDimension = ncolour * ncolour - 1;