references

[geekocoder]

can anyone plz explain me the output of the following code
Also the output when static keyword is removed

#include<iostream>
using namespace std;
 
int &fun()
{
    static int x = 10;
    return x;
}
int main()
{
    fun() = 30;
    cout << fun();
    getchar();
    return 0;
}

[vlad from moscow]

Function fun returns a reference to an object with the static storage duration.

After the statement

fun() = 30;

variable x defined in the body of func will be equal to 30.
Statement

cout << fun();

outputs this value on the console.