C++ Program to implement Operator Overloading for String Comparison with relational op (+, , ==)

#include

#include

#include

using namespace std;

 

class CStrings{

    private:

        char str[20];

    public:

        void getdata();

        friend CStrings operator+(CStrings&, CStrings&);

        friend int operator<(CStrings&, CStrings&);

        friend int operator>(CStrings&, CStrings&);

        friend int operator==(CStrings&, CStrings&);

    };

 

void CStrings :: getdata(){

    cout<<"\n Enter a String: ";

    cin>>str;

    }

 

CStrings operator+(CStrings &s1, CStrings &s2){

    CStrings Os;

    strcpy(Os.str, s1.str);

    strcat(Os.str, s2.str);

    cout<<"\n Concatenation of Str1 & str2: "<

    return Os;

    }

 

int operator<(CStrings &s1, CStrings &s2){

    if(strcmp(s1.str, s2.str) < 0)

        return 1;

    else

        return 0;

    }

 

int operator>(CStrings &s1, CStrings &s2){

    if(strcmp(s1.str, s2.str) > 0)

        return 1;

    else

        return 0;

    }

 

 

int operator==(CStrings &s1, CStrings &s2){

    if(strcmp(s1.str, s2.str) == 0)

        return 1;

    else

        return 0;

    }

 

void main(){

    clrscr();

    CStrings Ostr, Ostr1, Ostr2;

 

    cout<<"\n Enter the Information:-"<

    Ostr1.getdata();

    Ostr2.getdata();

 

    cout<<"\n String Concatenation:-"<

    Ostr = Ostr1 + Ostr2;

 

    cout<<"\n String Comparison:-"<

    if(Ostr1 < Ostr2)

        cout<"\t str1 is less than str2";

    else if(Ostr1 > Ostr2)

        cout<"\t str1 is greater than str2";

    else if(Ostr1 == Ostr2)

        cout<"\t str1 and str2 are equal.";

 

    getch();

    }