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ft_strnstr.c
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ft_strnstr.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strnstr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: vbrazas <vbrazas@student.unit.ua> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/11/03 18:43:09 by vbrazas #+# #+# */
/* Updated: 2018/05/24 20:09:40 by vbrazas ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strnstr(const char *haystack, const char *needle, size_t len)
{
size_t i;
size_t f;
if (ft_strcmp(needle, "") == 0 || ft_strcmp(haystack, needle) == 0)
return ((char *)haystack);
i = 0;
while (haystack[i] && i < len)
{
f = 0;
while (haystack[i + f] == needle[f] && (i + f) < len)
{
f++;
if (!needle[f])
return ((char *)(haystack + i));
}
i++;
}
return (NULL);
}