philosopher/libft/ft_substr.c
2023-03-06 17:38:20 +01:00

36 lines
1.3 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_substr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: erey-bet <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2022/09/28 16:33:43 by erey-bet #+# #+# */
/* Updated: 2022/10/11 22:09:26 by erey-bet ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_substr(char const *s, unsigned int start, size_t len)
{
long size;
char *new_s;
if (s == NULL)
return (NULL);
size = ft_strlen(s) - start;
if (size < 0)
size = 0;
else if ((unsigned long)size > len)
size = len;
new_s = malloc(size + 1);
if (new_s == NULL)
return (NULL);
if (start <= ft_strlen(s))
ft_strlcpy(new_s, s + start, len + 1);
else
new_s[0] = '\0';
return (new_s);
}