12) Create a class MyString which contains a character pointer (using new operator). Write a C++ program to overload following operators: > to compare length of two strings != to check equality of two strings + to concatenate two strings.
#include<iostream.h>
#include<conio.h>
#include<string.h>
class Mystring
{
char *str;
int len;
public:
Mystring()
{}
Mystring(char s[])
{
len=strlen(s);
str=new char[len+1];
strcpy(str,s);
}
void display()
{
cout<
}
void operator>(Mystring ob)
{
int len1,len2;
len1=strlen(str);
len2=strlen(ob.str);
if(len1>len2)
cout<
else
cout<
}
void operator!=(Mystring ob)
{
if(strcmp(str,ob.str)==0)
cout<
else
cout<
}
Mystring operator+(Mystring ob)
{
Mystring a;
int len1,len2;
len1=strlen(str);
len2=strlen(ob.str);
a.str=new char[len1+len2+1];
strcpy(a.str,str);
strcat(a.str,ob.str);
return a;
}
};
void main()
{
char s1[10],s2[20];
clrscr();
cout<<"\n Enter string : ";
cin>>s1;
cout<<"\n Enter 2nd string : ";
cin>>s2;
Mystring m1(s1),m2(s2),m3;
m1.display();
m2.display();
m1>m2;
m1!=m2;
m3=m1+m2;
m3.display();
getch();
}
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