ft_iterative_factorial.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_iterative_factorial.c                           :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: ybouzgao <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2017/11/06 14:35:16 by ybouzgao          #+#    #+#             */
/*   Updated: 2017/11/07 13:44:41 by ybouzgao         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

int	ft_iterative_factorial(int nb)
{
	int a;

	a = 1;
	if (nb < 0 || nb > 12)
		return (0);
	else if (nb == 0 || nb == 1)
		return (1);
	while (nb > 1)
	{
		a = a * nb;
		nb--;
	}
	return (a);
}