c++ - Pass by Reference Address passing issue -

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• pass reference / value in c++ 6 answers

#include<iostream> using namespace std;  void callbyreference (int &);    //function prototype  int main() {   int num;                         //variable declaration   cout<<"enter number";    cin>>num;   callbyreference(num);             //function definition   cout<<"number after triple "<<num<<endl;   return 0; }  void callbyreference (int & cref)   //funciton definition {   cref=cref*cref*cref; } 

if passing address in cref address should multiplied thrice. how value multiplied thrice?

you have reference variable argument, variable altered , not address itself. reference variable alias actual variable , changes made reflect in changes made original variable in case