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| author | Charles <sircharlesaze@gmail.com> | 2020-01-18 11:54:47 +0100 |
|---|---|---|
| committer | Charles <sircharlesaze@gmail.com> | 2020-02-04 05:33:59 +0100 |
| commit | f078f191515d0fc65340a8722fad14f3de679d7b (patch) | |
| tree | d6881ef24f6cc062332f3aa17709f693cf783b20 /src/str/ft_atoi_strict.c | |
| parent | 014d876b691b5c0e84faa98bd308a855269e4ae4 (diff) | |
| download | libft-f078f191515d0fc65340a8722fad14f3de679d7b.tar.gz libft-f078f191515d0fc65340a8722fad14f3de679d7b.tar.bz2 libft-f078f191515d0fc65340a8722fad14f3de679d7b.zip | |
Added ft_getchar and fixing strtol
Diffstat (limited to 'src/str/ft_atoi_strict.c')
| -rw-r--r-- | src/str/ft_atoi_strict.c | 38 |
1 files changed, 38 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..f12e8db --- /dev/null +++ b/src/str/ft_atoi_strict.c @@ -0,0 +1,38 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_strict_atoi.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle <marvin@42.fr> +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2020/01/15 10:06:29 by cacharle #+# #+# */ +/* Updated: 2020/01/18 11:53:07 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); +} |