diff options
Diffstat (limited to 'lib/ft_substr.c')
| -rw-r--r-- | lib/ft_substr.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/ft_substr.c b/lib/ft_substr.c new file mode 100644 index 0000000..1a3b8ce --- /dev/null +++ b/lib/ft_substr.c @@ -0,0 +1,39 @@ +/* +Libft Copyright (C) 2026 yctct + +This program is free software: you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation, either version 3 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <https://www.gnu.org/licenses/>. +*/ + +#include "libft.h" + +char *ft_substr(char const *s, unsigned int start, size_t len) +{ + char *ptr; + size_t s_len; + size_t ptr_len; + + if (!s) + return (NULL); + s_len = ft_strlen(s); + if (s_len <= start) + return (ft_strdup("")); + else if (s_len > start + len) + ptr_len = len; + else + ptr_len = s_len - start; + ptr = malloc(ptr_len + 1); + ft_strlcpy(ptr, &s[start], ptr_len + 1); + return (ptr); +} + |