Void function?

[ry0823]

I'm struggling to figure out why in the output, r == 2 j == 3 k == 2
r == 10 j == 2 k == 3, why the second time r would be equal to 10. Can anyone tell me why?

void func9() {
 
	cout << "func9() " << endl;
 
	int doSomething( int &, int  );
 
        int j = 2;
        int k = 2;
        int r = j++;
 
        cout << "r == " << r << " j == " << j << " k == " << k << endl;
 
        r = doSomething(j, ++k);
 
        cout << "r == " << r << " j == " << j << " k == " << k << endl;
}
 
int doSomething( int & f, int k ) {
        int j = f+k++;
 
	  f--;
 
        return(j+k);
}

[ne555]

hideous.
Use a debugger, inspect the variables (a watchpoint may be useful) and step by step execution.

It may help you change the names of the variables so they are all named differently.