X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/7636345391e90f6f243e68da98a641af136d1f77..d52700ac49b5cf1b2629461c9f2807f3d04c9f39:/include/simgrid/s4u/NetZone.hpp

diff --git a/include/simgrid/s4u/NetZone.hpp b/include/simgrid/s4u/NetZone.hpp
index c100c59ebe..21c0606be3 100644
--- a/include/simgrid/s4u/NetZone.hpp
+++ b/include/simgrid/s4u/NetZone.hpp
@@ -190,9 +190,10 @@ struct ClusterCallbacks {
   std::function<ClusterNetPointCb> netpoint;
   std::function<ClusterLinkCb> loopback = {};
   std::function<ClusterLinkCb> limiter  = {};
-  explicit ClusterCallbacks(std::function<ClusterNetPointCb> set_netpoint) : netpoint(set_netpoint){/*nothing to do */};
-  ClusterCallbacks(std::function<ClusterNetPointCb> set_netpoint, std::function<ClusterLinkCb> set_loopback,
-                   std::function<ClusterLinkCb> set_limiter)
+  explicit ClusterCallbacks(const std::function<ClusterNetPointCb>& set_netpoint)
+      : netpoint(set_netpoint){/*nothing to do */};
+  ClusterCallbacks(const std::function<ClusterNetPointCb>& set_netpoint,
+                   const std::function<ClusterLinkCb>& set_loopback, const std::function<ClusterLinkCb>& set_limiter)
       : netpoint(set_netpoint), loopback(set_loopback), limiter(set_limiter){/*nothing to do */};
 };
 /**