private inheritance

[mickey]

Hi,
I know it isn't used but for completness....Why compiler says I can't instantiate it? I've publicized it in the derived class; doesn't it should work?

Pet* p = new Cat;
#ifndef PET2_H
#define PET2_H
	using std::string;
	using std::cout;
	class Pet {		
	public:
		Pet() { speak(); cout << "Pet::Pet()\n"; }  
		virtual ~Pet() = 0;
		virtual string speak() { return "Pet "; }
	};
	inline Pet::~Pet() {  speak(); cout << "Pet::~Pet()\n"; }
	class Cat : private Pet {
		char* _ver;
	public:		
		Pet::Pet;
		Cat() : _ver( new char('q') /* 1 */ ) { cout << "Cat::Cat()\n";}
		~Cat() { cout << "Cat::~Cat()\n"; delete _verso; }
		string speak() { return "Cat: bark, bark\n"; }
	};
#endif PET2_H
error C2243: 'type cast' : conversion from 'Cat *' to 'Pet *' exists, but is inaccessible

Pet* p = new Cat;
#ifndef PET2_H
#define PET2_H
	using std::string;
	using std::cout;
	class Pet {		
	public:
		Pet() { speak(); cout << "Pet::Pet()\n"; }  
		virtual ~Pet() = 0;
		virtual string speak() { return "Pet "; }
	};
	inline Pet::~Pet() {  speak(); cout << "Pet::~Pet()\n"; }
	class Cat : private Pet {
		char* _ver;
	public:		
		Pet::Pet;
		Cat() : _ver( new char('q') /* 1 */ ) { cout << "Cat::Cat()\n";}
		~Cat() { cout << "Cat::~Cat()\n"; delete _verso; }
		string speak() { return "Cat: bark, bark\n"; }
	};
#endif PET2_H
error C2243: 'type cast' : conversion from 'Cat *' to 'Pet *' exists, but is inaccessible

To copy to clipboard, switch view to plain text mode 

furthermore: in /* 1 */ i'd like to initialize with a string. Which sintax, please?