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ft_atoi.c
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ft_atoi.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: yhebbat <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/01/13 19:11:36 by yhebbat #+# #+# */
/* Updated: 2021/01/21 15:29:56 by yhebbat ### ########.fr */
/* */
/* ************************************************************************** */
#include "cub3d.h"
#include "get_next_line.h"
int ft_atoi(const char *str)
{
size_t result;
int signe;
result = 0;
signe = 1;
while (*str == ' ' || (*str > 8 && *str < 14))
str++;
if (*str == '-' || *str == '+')
{
if (*str == '-')
signe = -1;
str++;
}
while (*str >= '0' && *str <= '9')
{
result = result * 10 + (*str - '0');
str++;
if (result > 4294967295 && signe == 1)
return (2560);
if (signe == -1 && result > 4294967295)
return (0);
}
return ((int)result * signe);
}