1 files changed, 4 insertions, 4 deletions
diff --git a/c_layer/curve.hpp b/c_layer/curve.hpp
index 5479e72..22a6cc9 100644
--- a/c_layer/curve.hpp
+++ b/c_layer/curve.hpp
@@ -37,7 +37,7 @@ namespace pyisda {
         YieldCurve(TCurve* const curve, const std::vector<TDate>& dates);
         YieldCurve(const YieldCurve &curve2) :
             Curve(curve2),
-            dates(curve2.dates) {};
+            dates(std::move(curve2.dates)) {};
         size_t size();
         unsigned char* serialize(unsigned char* buf);
         std::vector<TDate> dates;
@@ -46,11 +46,11 @@ namespace pyisda {
     class SpreadCurve : public Curve {
     public:
         SpreadCurve(TCurve* const curve, const std::vector<double>& recovery_rates,
-                    std::string ticker);
+                    const std::string& ticker);
         SpreadCurve(const SpreadCurve &curve2) :
             Curve(curve2),
-            recovery_rates(curve2.recovery_rates),
-            ticker(curve2.ticker) {};
+            recovery_rates(std::move(curve2.recovery_rates)),
+            ticker(std::move(curve2.ticker)) {};
 
         std::vector<double> recovery_rates;
         std::string ticker;