[C] Factorial function

[Commodore]

Yes, another silly function. This time it finds the factorial of a number.

Usage:

Code:

factorial(number);

Code:

Code:

long factorial(long x)
{
    long factorial = x;
    long i = 0;
    
    for (i = (x - 1); i > 1; --i)
    {
        factorial = (factorial * i);
    }
    
    return factorial;
}

Please be aware that any input number greater than 31 will not produce a useful result. This is because long integers cannot store numbers greater than the factorial of 31. Sorry.