RE: [Dev-C++] use of recursion

[Plunkett, M. <MPl...@ms...>]

Don't know C++ too well, but you're running your factorial_cal without
catching the return value.  Try 

results = factorial_cal( number );

	-----Original Message-----
	From:	softnasolutions-ltd.fsbusiness.co.uk
[SMTP:so...@so...]
	Sent:	Wednesday, December 06, 2000 3:27 PM
	To:	dev...@li...
	Subject:	[Dev-C++] use of recursion

	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;
	}

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