Replaced throw with default case string.

Author: neogeek

include/RhythmGameUtilities/Enums/Difficulty.h

@@ -35,7 +35,7 @@ std::string ToString(Difficulty difficulty)
     case Expert:
         return "Expert";
     default:
-        throw std::invalid_argument("Unknown Difficulty");
+        return "Unknown Difficulty";
     }
 }
 

include/RhythmGameUtilities/Enums/NamedSection.h

@@ -28,7 +28,7 @@ std::string ToString(NamedSection namedSection)
     case Events:
         return "Events";
     default:
-        throw std::invalid_argument("Unknown NamedSection");
+        return "Unknown NamedSection";
     }
 }
 

include/RhythmGameUtilities/Enums/TypeCode.h

@@ -35,7 +35,7 @@ std::string ToString(TypeCode typeCode)
     case EventMarker:
         return "E";
     default:
-        throw std::invalid_argument("Unknown TypeCode");
+        return "Unknown TypeCode";
     }
 }