[Dev-C++] use of recursion

[softnasolutions-ltd.fsbusiness.co.uk <so...@so...>]

Hi friends,

I have just started learning C++ (i'm using a material from
Cprogramming.com). I've tried to write a program to recursively calculate
the factorial of a number but it doesn't work. Can someone please tell me
what i've done wrong, Here is the code:

#include <iostream.h>
#include <stdlib.h>

int factorial_cal(int results)
{
    if (results>0)

    results=1*results;
    factorial_cal(results-1);

    return results;
}
int main()

{
int number;
int results;
cout<< "Enter a number for me to caculate its Factorial"<<endl;
cin>>number;
results=number;
factorial_cal(results);

cout<< " The factorial of "<<number<< " is "<<results<<endl;

      system("PAUSE");
      return 0;
}