Mi a hiba a forráskódban? /C++

//main.cpp

# include <iostream>

# include <stdlib.h>

typedef unsigned short ushort;

typedef unsigned int uint;

using std::cout;

using std::cin;

using std::endl;

class Counter

{

public:

Counter(int x); //Konstruktor

Counter(const Counter &); //Másoló konstruktor

~Counter(); //Destruktor

void increment() {++*itsVal;}

const &Counter operator++ (); //prefix

const Counter operator++ (int) {} //postfix

void SetVal(int x);

int GetVal()const;

private:

int *itsVal;

};

Counter::Counter(int x):

itsVal(new int(x))

{cout <<"Konstruktor \n";}

Counter::Counter(const Counter &rhs)

{

cout <<"Copy konstruktor \n";

itsVal = new int;

*itsVal = rhs.GetVal();

}

Counter::~Counter()

{

cout <<"Destruktor \n";

delete itsVal;

itsVal = NULL;

}

const Counter& Counter::operator++ ()

{

++*itsVal;

return *this;

}

//

void Counter::SetVal(int x)

{*itsVal = x;}

int Counter::GetVal()const

{return *itsVal;}

//main kezdődik

int main()

{

Counter i(2);

return EXIT_SUCCESS;

}

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|21|error: ISO C++ forbids declaration of 'Counter' with no type [-fpermissive]|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|21|error: expected ';' at end of member declaration|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|21|error: ISO C++ forbids declaration of 'operator++' with no type [-fpermissive]|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|22|error: 'Counter' does not name a type|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|21|error: field 'const int& Counter::Counter' with same name as class [-fpermissive]|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp||In constructor 'Counter::Counter(int)':|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|30|error: uninitialized reference member 'Counter::Counter' [-fpermissive]|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|34|error: 'Counter' does not name a type|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|34|error: ISO C++ forbids declaration of 'rhs' with no type [-fpermissive]|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|34|error: prototype for 'Counter::Counter(const int&)' does not match any in class 'Counter'|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|17|error: candidates are: Counter::Counter(const Counter&)|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|30|error: Counter::Counter(int)|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|48|error: prototype for 'const Counter& Counter::operator++()' does not match any in class 'Counter'|

C:\Users\ALWAYS_WINS\Desktop\Code Blocks mentesek\Practice_5\main.cpp|21|error: candidate is: int Counter::operator++()|

||=== Build finished: 13 errors, 0 warnings ===|