If we declare a function friend int show(T4Tutorials); as a friend in a class T4Tutorials then this function int show(T4Tutorials object) can access the private and protected members of the class T4Tutorials. You must know that a global function can also be declared as a friend function of the class.
Syntax of friend function in C++
class class_name { … friend return_type function_name(arguments); … }
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#include<iostream> using namespace std; class T4Tutorials { private: int i,n; public: function() { cout<<"Please enter the number :"<<endl; cin>>n; for(i=1; i<=n; i++) { cout<<" The cube of"<<i<<"is ="<<(i*i*i)<<endl; } } friend int show(T4Tutorials); }; int show(T4Tutorials object) { cout<<" cube of"<<object.i<<"is ="<<(object.i*object.i*object.i)<<endl; } int main() { T4Tutorials object; object.function(); show(object); } |