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ft_atoi.c
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ft_atoi.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: msaliuta <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2018/10/27 18:37:48 by msaliuta #+# #+# */
/* Updated: 2018/11/04 16:01:42 by msaliuta ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
int ft_atoi(const char *str)
{
size_t i;
int nbr;
int neg;
nbr = 0;
neg = 0;
i = 0;
while ((str[i] == ' ') || (str[i] == '\n') || (str[i] == '\t') ||
(str[i] == '\r') || (str[i] == '\v') || (str[i] == '\f'))
i++;
if (str[i] == '-')
neg = 1;
if (str[i] == '-' || str[i] == '+')
i++;
while ((str[i] >= '0') && (str[i] <= '9'))
{
nbr = nbr * 10 + (int)str[i] - (int)'0';
i++;
}
if (neg)
return (-nbr);
else
return (nbr);
}