/* ************************************************************************** */
/*                                                                            */
/*                                                        ::::::::            */
/*   ft_atoi.c                                          :+:      :+:    :+:   */
/*                                                     +:+                    */
/*   By: djonker <marvin@codam.nl>                    +#+                     */
/*                                                   +#+                      */
/*   Created: 2020/11/01 19:08:11 by djonker       #+#    #+#                 */
/*   Updated: 2023/02/07 00:42:09 by houtworm         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "../libft.h"

int	ft_atoi(char *str)
{
	unsigned int		r;
	int					c;
	int					n;

	r = 0;
	c = 0;
	n = 1;
	if (str == NULL)
		return (0);
	while ((str[c] == 32) || (str[c] > 8 && str[c] < 14))
		c++;
	if (str[c] == '-' || str[c] == '+')
		if (str[c++] == '-')
			n = -1;
	while (str[c] >= '0' && str[c] <= '9')
	{
		r = 10 * r + (str[c] - '0');
		if (r > 2147483647 && n == 1)
			return (-1);
		else if (r > 2147483648 && n == -1)
			return (0);
		c++;
	}
	return (n * r);
}