// Justin C. Miller
// University of Wisconsin Oshkosh
// Made for: http://www.geocities.com/neonprimetime.geo/index.html
// Date: 2001
// Borland Builder 4.0
// COPY CONSTRUCT and OVERLOADING == and !=

#include 
#include 

class Cat
{
private:
        char * name ;
        char * owner ;
        int age ;
public:
        Cat() ;                                      // USED FOR...
        void SetCatInfo(char * , char *  , int ) ;   // ------------
        const Cat & operator=(const Cat & mycat);    // Cat1 = Cat2
        bool operator==(const Cat & mycat) const ;   // Cat1 == Cat2
        bool operator!=(const Cat & mycat) const ;   // Cat1 != Cat2
} ;

Cat::Cat()
{
        name = new char[30] ;
        owner = new char[30] ;
        age = 0 ;
}

void Cat::SetCatInfo(char * n , char * o , int a)
{strcpy(name, n); strcpy(owner, o) ; age = a ;}

const Cat & Cat::operator=(const Cat & mycat)
{
        strcpy(name, mycat.name) ;
        strcpy(owner,mycat.owner) ;
        age = mycat.age ;

        return * this ;
}

bool Cat::operator==(const Cat & mycat) const
{
        if(strcmp(name, mycat.name) == 0)
                if(strcmp(owner, mycat.owner) == 0)
                        if(age == mycat.age)
                                return true ;
        return false ;
}

bool Cat::operator!=(const Cat & mycat) const
{
        if(strcmp(name, mycat.name) != 0)
                return true ;
        if(strcmp(owner, mycat.owner) != 0)
                return true ;
        if(age != mycat.age)
                return true ;
        return false;
}

int main()
{
        Cat fuzzy ;
        fuzzy.SetCatInfo("fuzz", "john", 5) ;
        Cat tigger ;
        tigger.SetCatInfo("tigger", "janet", 9) ;
        Cat kitty ;
        kitty.SetCatInfo("kitty", "bob", 1) ;

        Cat fuzzy2 ;
        fuzzy2 = fuzzy ;  // uses overloaded =
                // also called COPY CONSTRUCTOR

        if(fuzzy2 == fuzzy)  // uses overloaed ==
                cout << "fuzzy2 and fuzzy are the same cats" << endl ;
        else
                cout << "fuzzy2 and fuzzy are not the same cat" << endl ;

        if(tigger != kitty)  // uses overloaded !=
                cout << "tigger is a different cat than kitty" << endl ;
        else
                cout << "tigger is the same cat as kitty" << endl ;

        getch() ;
        return 0 ;
}

// OUTPUT
//
// fuzzy2 and fuzzy are the same cats
// tigger is a different cat than kitty

    Source: geocities.com/neonprimetime.geo/cpp/cpp_SourceCode

               ( geocities.com/neonprimetime.geo/cpp)                   ( geocities.com/neonprimetime.geo)