X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/c1b3e440de2150420b08c0bc55a125a0c9eb86bc..9e3b2f1d55a07271c05db2ed5b3fec27561097f9:/include/simgrid/s4u/NetZone.hpp

diff --git a/include/simgrid/s4u/NetZone.hpp b/include/simgrid/s4u/NetZone.hpp
index 41971ae176..db5854b8e3 100644
--- a/include/simgrid/s4u/NetZone.hpp
+++ b/include/simgrid/s4u/NetZone.hpp
@@ -54,8 +54,8 @@ public:
   std::vector<NetZone*> get_children();
 
   /** Retrieve the property value (or nullptr if not set) */
-  const char* get_property(std::string key);
-  void set_property(std::string key, std::string value);
+  const char* get_property(const std::string& key);
+  void set_property(const std::string& key, std::string value);
 
   /* Add content to the netzone, at parsing time. It should be sealed afterward. */
   int add_component(kernel::routing::NetPoint* elm); /* A host, a router or a netzone, whatever */