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ft_strnstr.c
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36 lines (33 loc) · 1.28 KB
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strnstr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: ldiaz-ra <ldiaz-ra@student.42madrid.com +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/09/19 14:29:35 by ldiaz-ra #+# #+# */
/* Updated: 2023/09/20 12:57:04 by ldiaz-ra ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strnstr(const char *haystack, const char *needle, size_t len)
{
size_t j;
if (!haystack && !len)
return (NULL);
if (!*needle)
return ((char *)haystack);
while (*haystack && len--)
{
j = 0;
while (*(haystack + j) == *(needle + j)
&& *(needle + j) && j <= len)
{
if (!*(needle + j + 1))
return ((char *)haystack);
j++;
}
haystack++;
}
return (NULL);
}