Hiding

• class Dwelling
• { public:
• virtual void showperks( int a ) const;
• ... };
• class Hovel : public Dwelling
• { public:
• void showperks( );
• ...
• }
• Hovel trump; // valid
• trump.showperks( ); // VALID
• trump.showperks(5); // INVALID

• The redefinition hides the base class version.