C++ Program Friend Function to display the reverse of a number
Write a C++ Program to display the reverse of a number using the Friend function. If we declare a functionfriend void show(T4Tutorials); as a friend in a class T4Tutorials then this function friend void show(T4Tutorials); can access the private and protected members of the classT4Tutorials. 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 n,i; public: T4Tutorials() { cout<<"Enter Number to Display reverse: "; cin>>n; } friend void show(T4Tutorials); }; void show(T4Tutorials r) { cout<<"The reverse the Entered number: "; for(r.i=r.n;r.i>0;r.i=r.i/10) { cout<<r.i%10; } } int main() { T4Tutorials r; show(r); } |