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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strict_atoi.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/01/15 10:06:29 by cacharle #+# #+# */
/* Updated: 2020/02/10 02:20:40 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
int ft_strict_atoi(const char *s)
{
char *end;
long ret;
if (*s != '-' && !ft_isdigit(*s))
{
errno = EINVAL;
return (0);
}
errno = 0;
ret = ft_strtol(s, &end, 10);
if (errno == ERANGE || ret > INT_MAX || ret < INT_MIN)
{
errno = ERANGE;
return (0);
}
if (*end != '\0')
{
errno = EINVAL;
return (0);
}
return (ret);
}
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