X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/2b3790827a15510aa6b18146bc01597a568b332b..66e4277badef8f22852720b79a78e1f091c3b679:/src/surf/trace_mgr.hpp

diff --git a/src/surf/trace_mgr.hpp b/src/surf/trace_mgr.hpp
index 1e749dedf4..fe48da21a7 100644
--- a/src/surf/trace_mgr.hpp
+++ b/src/surf/trace_mgr.hpp
@@ -65,8 +65,8 @@ public:
   double value_         = 0;
   explicit DatedValue() = default;
   explicit DatedValue(double d, double v) : date_(d), value_(v) {}
-  bool operator==(DatedValue e2);
-  bool operator!=(DatedValue e2) { return not(*this == e2); }
+  bool operator==(DatedValue const& e2) const;
+  bool operator!=(DatedValue const& e2) const { return not(*this == e2); }
 };
 std::ostream& operator<<(std::ostream& out, const DatedValue& e);