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| author | Charles <sircharlesaze@gmail.com> | 2020-01-16 00:51:22 +0100 |
|---|---|---|
| committer | Charles <sircharlesaze@gmail.com> | 2020-01-16 00:51:22 +0100 |
| commit | ae1412fdc283e442a0869aa7d63778449a7e5cfe (patch) | |
| tree | 0f5d5ff124129b3f085ce94d3004622c0d041323 /src/str/ft_atoi_strict.c | |
| parent | e8a7d07f1c99b5ce6210603d88098580af95fb13 (diff) | |
| download | libft-ae1412fdc283e442a0869aa7d63778449a7e5cfe.tar.gz libft-ae1412fdc283e442a0869aa7d63778449a7e5cfe.tar.bz2 libft-ae1412fdc283e442a0869aa7d63778449a7e5cfe.zip | |
Features toggle to avoid bloat and unauthorized functions, config file, script to generate a rendu branch
Diffstat (limited to 'src/str/ft_atoi_strict.c')
| -rw-r--r-- | src/str/ft_atoi_strict.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/src/str/ft_atoi_strict.c b/src/str/ft_atoi_strict.c new file mode 100644 index 0000000..6156b03 --- /dev/null +++ b/src/str/ft_atoi_strict.c @@ -0,0 +1,39 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_strict_atoi.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/01/15 10:06:29 by cacharle #+# #+# */ +/* Updated: 2020/01/15 14:09:03 by cacharle ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft.h" + +#include <stdio.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); +} |
