Consider the function

Question

```
void doStuff(int parValue, int& parRef)
{
parValue = 100;
cout << “parValue in call to doStuff = “
<< parValue << endl;
parRef =222;
cout << “parRef in call to doStuff = “
<< parRef << endl;
}
```

and consider the call, which we assume is in a complete and correct program
```
int n1 = 1, n2 =2;
doStuff(n1, n2);
```

a) The call to doStuff results in the assignment n1 = 222;
b) The call to doStuff results in the assignment n2 = 222;
c) The call to doStuff results in the assignment n1 = 100;
d) The call to doStuff results in the assignment n2 = 100;
e) There is no effect on either of these variables..

Answer 1

b) The call to doStuff results in the assignment n2 = 222;

The parameter parRef is a reference parameter, the argument corresponding to this is n2. The function doStuff contains an assignment, parRef = 222; The function doStuff behaves the assignment n2 = 222; were executed.