/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_atoi.c                                          :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: exam <marvin@42.fr>                        +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2019/07/26 11:11:42 by exam              #+#    #+#             */
/*   Updated: 2019/07/26 11:32:51 by exam             ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

int		ft_atoi(const char *str)
{
	int	nb;
	int	is_negative;

	while (*str == ' ' || *str == '\t' || *str == '\n' || *str == '\r'
			|| *str == '\v' || *str == '\f'|| *str == '\r')     
		str++;
	is_negative = 0;
	if (*str == '+' || *str == '-')
	{
		if (*str == '-')
			is_negative = 1;
		str++;
	}
	nb = 0;
	while (*str >= '0' && *str <= '9')
	{
		nb *= 10;
		nb += *str - '0';
		str++;
	}
	if (is_negative)
		nb = -nb;
	return (nb);
}