Pointers to member functions using virtual methods

I'm working my way through SAMS Teach Yourself C++ in 21 Days Third Edition. But I have ran into a problem.

When I try to compile this with Dev-C++ 4.9.9.2 I get an error message. I've tried compiling the code from the book and code on the CD, but both have the same result.

Code:

   C:\Documents and Settings\Will\My Documents\My C++\Sams Teach Yourself\Week 2\Day 14\14.10\List1410.cpp In function `int main()': 
67 C:\Documents and Settings\Will\My Documents\My C++\Sams Teach Yourself\Week 2\Day 14\14.10\List1410.cpp invalid use of non-static member function `virtual void Mammal::Speak() const' 
67 C:\Documents and Settings\Will\My Documents\My C++\Sams Teach Yourself\Week 2\Day 14\14.10\List1410.cpp cannot convert `void (Mammal::)() const' to `void (Mammal::*)() const' in assignment 
68 C:\Documents and Settings\Will\My Documents\My C++\Sams Teach Yourself\Week 2\Day 14\14.10\List1410.cpp invalid use of non-static member function `virtual void Mammal::Move() const' 
68 C:\Documents and Settings\Will\My Documents\My C++\Sams Teach Yourself\Week 2\Day 14\14.10\List1410.cpp cannot convert `void (Mammal::)() const' to `void (Mammal::*)() const' in assignment

Lines 67 and 68 are the following, right at the end of the program.

Code:

		case 1: pFunc = Mammal::Speak; break;
		default: pFunc = Mammal::Move; break;

Code:

 //Listing 14.10 Pointers to member functions using virtual methods

#include <iostream>
using namespace std;

class Mammal
{
public:
	Mammal():itsAge(1) {  }
	virtual ~Mammal() { }
	virtual void Speak() const = 0;
	virtual void Move() const = 0;
protected:
	int itsAge;
};

class Dog : public Mammal
{
public:
	void Speak()const { cout << "Woof!\n"; }
	void Move() const { cout << "Walking to heel...\n"; }
};


class Cat : public Mammal
{
public:
	void Speak()const { cout << "Meow!\n"; }
	void Move() const { cout << "slinking...\n"; }
};


class Horse : public Mammal
{
public:
	void Speak()const { cout << "Winnie!\n"; }
	void Move() const { cout << "Galloping...\n"; }
};


int main()
{
	void (Mammal::*pFunc)() const =0;
	Mammal* ptr =0;
	int Animal;
	int Method;
	bool fQuit = false;

	while (fQuit == false)
	{
		cout << "(0)Quit (1)dog (2)cat (3)horse: ";
		cin >> Animal;
		switch (Animal)
		{
		case 1:	ptr = new Dog; break;
		case 2: ptr = new Cat; break;
		case 3: ptr = new Horse; break;
		default: fQuit = true; break;
		}
		if (fQuit)
			break;

		cout << "(1)Speak  (2)Move: ";
		cin >> Method;
		switch (Method)
		{
		case 1: pFunc = Mammal::Speak; break;
		default: pFunc = Mammal::Move; break;
		}

		(ptr->*pFunc)();
		delete ptr;
	}
	return 0;
}

I would be thankful for any help.

You need to use the address operator (&):

Code:

case 1: pFunc = &Mammal::Speak; break;
default: pFunc = &Mammal::Move; break;

And it works! Thanks alot for your help!