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ft_atol.c
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ft_atol.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atol.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: anarodri <anarodri@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/02/28 14:02:10 by anarodri #+# #+# */
/* Updated: 2022/12/15 12:51:09 by anarodri ### ########.fr */
/* */
/* ************************************************************************** */
#include "../libft.h"
long int ft_atol(const char *str)
{
long nb;
int i;
int sign;
nb = 0;
i = 0;
sign = 1;
while ((str[i] >= '\t' && str[i] <= '\r') || str[i] == ' ')
i++;
if (str[i] == '-')
sign *= -1;
if (str[i] == '+' || str[i] == '-')
i++;
while (str[i] >= '0' && str[i] <= '9')
{
nb = (nb * 10) + str[i] - '0';
i++;
}
return (nb * sign);
}