From 496afe8e8a82d6db730bf835eb5fbe1ef3a142be Mon Sep 17 00:00:00 2001 From: Charles Date: Wed, 15 Jan 2020 11:40:48 +0100 Subject: Added ft_strtol, ft_isspace, ft_todigit, ft_strict_atoi, modified ft_atoi to use ft_strtol --- src/str/ft_strict_atoi.c | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 src/str/ft_strict_atoi.c (limited to 'src/str/ft_strict_atoi.c') diff --git a/src/str/ft_strict_atoi.c b/src/str/ft_strict_atoi.c new file mode 100644 index 0000000..c25ebdd --- /dev/null +++ b/src/str/ft_strict_atoi.c @@ -0,0 +1,38 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_strict_atoi.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/01/15 10:06:29 by cacharle #+# #+# */ +/* Updated: 2020/01/15 11:32:17 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); +} -- cgit