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ft_atoi.c
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ft_atoi.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jergoh <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/09/21 10:17:41 by jergoh #+# #+# */
/* Updated: 2023/09/21 10:17:42 by jergoh ### ########.fr */
/* */
/* ************************************************************************** */
int ft_atoi(const char *str)
{
int i;
unsigned int result;
int negative;
i = 0;
result = 0;
negative = 1;
while ((str[i] >= 9 && str[i] <= 13) || str[i] == 32)
i++;
if (str[i] == '-' || str[i] == '+')
{
if (str[i] == '-')
negative = -1;
i++;
}
while (str[i] >= 48 && str[i] <= 57)
{
result = (result * 10) + (str[i] - '0');
i++;
}
return ((int)(result * negative));
}