How do you track the value that a function returns?

[4TN]

I am working with an example program on recursive functions and I followed the variables in the debugger. When the program was done it output a value that doesn't show in the autos window and there is basically one variable.

Code: Select all

// recursive-factorial.cpp by Bill Weinman <http://bw.org/>
#include <iostream>
using namespace std;

unsigned long int factorial( unsigned long int n ) {
	if( n < 2 ) return 1;
	return factorial( n - 1 ) * n;
}

int main( int argc, char ** argv ) {
	unsigned long int n = 10;
	cout << "factorial of " << n << " is " << factorial(n) << endl;
	return 0;
}

So where does the number come from and how do I track the value that a function returns?

[chili]

It should appear in the autos tab if you step into the function you're interested in and then step out of it.

[4TN]

I got it. Thanks Chilli.