From 3a2d19df9e509d0b015c786eb02f8315ff0ad91c Mon Sep 17 00:00:00 2001 From: Charles Date: Sun, 5 Apr 2020 14:05:43 +0200 Subject: Renamed ft_substr to ft_strsub, Added ft_strsubf, ft_strcat3 --- src/str/ft_strsub.c | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 src/str/ft_strsub.c (limited to 'src/str/ft_strsub.c') diff --git a/src/str/ft_strsub.c b/src/str/ft_strsub.c new file mode 100644 index 0000000..77bffb2 --- /dev/null +++ b/src/str/ft_strsub.c @@ -0,0 +1,39 @@ +/* ************************************************************************** */ +/* */ +/* ::: :::::::: */ +/* ft_strsub.c :+: :+: :+: */ +/* +:+ +:+ +:+ */ +/* By: cacharle +#+ +:+ +#+ */ +/* +#+#+#+#+#+ +#+ */ +/* Created: 2019/10/17 08:28:49 by cacharle #+# #+# */ +/* Updated: 2020/04/05 13:47:55 by charles ### ########.fr */ +/* */ +/* ************************************************************************** */ + +#include "libft_str.h" + +/* +** \brief Extract a substring from a string +** \param s String to extract from +** \param start Starting index of the substring +** \param len Substring length +** \return The created substring or NULL on error +*/ + +char *ft_strsub(char const *s, size_t start, size_t len) +{ + char *sub; + size_t s_len; + + if (s == NULL) + return (NULL); + s_len = ft_strlen(s); + if (start > s_len) + return (NULL); + if (start + len > s_len) + len = s_len - start; + if ((sub = (char*)malloc(sizeof(char) * (len + 1))) == NULL) + return (NULL); + sub[len] = '\0'; + return (ft_strncpy(sub, s + start, len)); +} -- cgit