42_cub3d/Libft/ft_strnstr.c
2024-10-09 03:35:09 +02:00

38 lines
1.3 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* ft_strnstr.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: grobledo <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/02/13 22:07:12 by grobledo #+# #+# */
/* Updated: 2023/02/13 22:07:14 by grobledo ### ########.fr */
/* */
/* ************************************************************************** */
#include "libft.h"
char *ft_strnstr(const char *big, const char *little, size_t len)
{
size_t i;
size_t j;
if ((big == NULL || little == NULL) && !len)
return (0);
i = 0;
j = 0;
if (little[i] == '\0')
return ((char *)big);
while (big[i] && i < len)
{
if (big[i] == little[j])
{
while (big[i + j] == little[j] && (i + j) < len && little[j])
j++;
if (little[j] == '\0')
return ((char *)&big[i]);
j = 0;
}
i++;
}
return (NULL);
}