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ft_strnstr.c
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ft_strnstr.c
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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strnstr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: iribeiro <iribeiro@student.42sp.org.br> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/02/14 13:01:38 by iribeiro #+# #+# */
/* Updated: 2021/03/02 14:32:03 by iribeiro ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strnstr(const char *big, const char *little, size_t len)
{
size_t i;
size_t j;
unsigned char *b;
unsigned char *l;
i = 0;
b = (unsigned char *)big;
l = (unsigned char *)little;
if (!l[i])
return ((char *)&b[i]);
while (i < len && b[i])
{
j = 0;
while (((i + j) < len) && (b[i + j] == l[j]))
{
if (!l[j + 1])
return ((char *)&b[i]);
j++;
}
i++;
}
return (0);
}