Answer:
Check the explanation
Explanation:
myString. h:
#include <iostream>
using namespace std;
#ifndef _MYSTRING_H_
#define _MYSTRING_H_
class myString{
private:
 char *str;
public:
 myString();
 myString(const char *s);
 void operator = (myString &s);
 int length();
 friend ostream &operator <<(ostream &out, myString &s);
 friend istream &operator >>(istream &out, myString &s);
 bool operator <(myString &s);
 bool operator <=(myString &s);
 bool operator >(myString &s);
 bool operator >=(myString &s);
 bool operator ==(myString &s);
 bool operator !=(myString &s);
};
#endif
myString. cpp:
#include "myString. h"
#include <cstring>
myString::myString(){
 str = new char;
 str[0] = '\0';
}
myString::myString(const char *s){
 int len = strlen(s);
 str = new char[len + 1];
 for(int i = 0; i < len; ++i){
   str[i] = s[i];
 }
 str[len] = '\0';
}
void myString::operator = (myString &s){
 s.str = new char[length() + 1];
 for(int i = 0; i < length(); ++i){
   s.str[i] = str[i];
 }
 s.str[length()] = '\0';
}
int myString::length(){
 return strlen(str);
}
ostream &operator <<(ostream &out, myString &s){
 out << s.str;
 return out;
}
istream &operator >>(istream &in, myString &s){
 in >> s.str;
 return in;
}
bool myString::operator < (myString &s){
 return strcmp(str, s.str) < 0;
}
bool myString::operator <= (myString &s){
 return strcmp(str, s.str) <= 0;
}
bool myString::operator > (myString &s){
 return strcmp(str, s.str) > 0;
}
bool myString::operator >= (myString &s){
 return strcmp(str, s.str) >= 0;
}
bool myString::operator == (myString &s){
 return strcmp(str, s.str) == 0;
}
bool myString::operator != (myString &s){
 return strcmp(str, s.str) != 0;
}
main. cpp:
#include "myString.h"
#include <iostream>
using namespace std;
int main(){
 myString s1, s2;
 cout << "Enter first string: ";
 cin >> s1;
 cout << "Enter second string: ";
 cin >> s2;
 cout << "you entered: " << s1 << " and " << s2 << endl;
 myString s3 = s1;
 cout << "Value of s3 is " << s3 << endl;
 if(s1 < s2){
   cout << s1 << " < " << s2 << endl;
 }
 if(s1 <= s2){
   cout << s1 << " <= " << s2 << endl;
 }
 if(s1 > s2){
   cout << s1 << " > " << s2 << endl;
 }
 if(s1 >= s2){
   cout << s1 << " >= " << s2 << endl;
 }
 if(s1 == s2){
   cout << s1 << " == " << s2 << endl;
 }
 if(s1 != s2){
   cout << s1 << " != " << s2 << endl;
 }
 return 0;
}
Kindly check the output below.
