Trace the following program to determine its output.
If somebody could go through and specify when each a,b,*a, and *b changes in the function main, or foo, that would be great.
using namespace std;
void foo (int *a, int *b)
*a = *a + *b;
*b = *b + 2;
cout << "a:" << *a << " b:" << *b << endl;
int main ()
int a = 5;
int b = 4;
cout << "a is: " << a << " b is:" << b << endl;
If I were to analyze it right now, I would say the 5 and 4 get passed into the foo function, and then *a = *a + *b; changes the a in the main function to 9, and the *b = *b + 2; changes the b in the main function to 6. Then the output from void foo would be a: 5 b: 4 (not sure about that)
Then the 2nd time they are brought up as 6 and 9. The *a = *a + *b; changes the a in the main function from 9 to (6+9) = 15 and the *b = *b + 2; changes the b in the main function from 6 to (9+2) = 11. The output from void foo this time would be a: 6 b: 9
Then the output from main would be a is: 15 b is: 11
I'm not sure if that's correct so if somebody could go through it and describe what is happening at each point similarly to what I did that would be great.