C++ Programming - References - Discussion

We can return only static variable by reference.

For local variable we get warning. But code run successfully. Global variable can be accessed in anyway.

Option C is correct.

We can return a global variable by reference.
If you workout a simple program you will get the answer !

And,
We cannot return a local variable by reference.
If you do so, you will get a warning.. which is a no right?

#include<iostream>
using namespace std;

int& a(){
int b=10;
return b;
}

int main(){
a();
}

bix.cpp [Warning] reference to local variable 'b' returned [-Wreturn-local-addr]