Return reference from getInfoURL() of DeepSkyObject and Location

src/celengine/deepskyobj.cpp

@@ -72,7 +72,7 @@ string DeepSkyObject::getDescription() const
     return "";
 }
 
-string DeepSkyObject::getInfoURL() const
+const string& DeepSkyObject::getInfoURL() const
 {
     return infoURL;
 }

src/celengine/deepskyobj.h

@@ -73,7 +73,7 @@ class DeepSkyObject : public CatEntry
     float getAbsoluteMagnitude() const;
     void setAbsoluteMagnitude(float);
 
-    std::string getInfoURL() const;
+    const std::string& getInfoURL() const;
     void setInfoURL(const std::string&);
 
     bool isVisible() const { return visible; }

src/celengine/location.cpp

@@ -150,9 +150,9 @@ void Location::setImportance(float _importance)
 }
 
 
-string Location::getInfoURL() const
+const string& Location::getInfoURL() const
 {
-    return "";
+    return infoURL;
 }
 
 

src/celengine/location.h

@@ -35,7 +35,7 @@ public:
     float getImportance() const;
     void setImportance(float);
 
-    std::string getInfoURL() const;
+    const std::string& getInfoURL() const;
     void setInfoURL(const std::string&);
 
     bool isLabelColorOverridden() const { return overrideLabelColor; }