A funcation which is friend for a class is set to be friend funcation
In the fallowing example: big is friend funcation which has objects as a parameter
in the class test1 we get the value for a via geta() funcation & in the class test2 we get value for b via getb() funcation. In the main(), we are creating objects t1 & t2 for test1 & test2 respectivly & we are passing this objects as a parameter for the friend funcation
#include <iostream>
using namespace std;
class test2;
class test1
{
private:
int a;
public:
void geta()
{
cout<<"enter a value "<<endl;
cin>>a;
}
friend void big(test1,test2);
};
class test2
{
private:
int b;
public:
void getb()
{
cout<<"enter value b "<<endl;
cin>>b;
}
friend void big(test1,test2);
};
void big(test1 t1,test2 t2)
{
t1.a;
t2.b;
if(t1.a>t2.b)
{
cout<<"a is grater"<<endl;
}
else if(t1.a<t2.b)
{
cout<<"b is greater"<<endl;
}
else
{
cout<<"both are equal"<<endl;
}
}
int main()
{
test1 t1;
test2 t2;
t1.geta();
t2.getb();
big(t1,t2);
return 0;
}
output :
enter a value
30
enter value b
20
a is grater
