ft_strnstr.c

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   ft_strnstr.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: macelik <macelik@student.42.fr>            +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2023/02/22 14:18:35 by macelik           #+#    #+#             */
/*   Updated: 2023/02/22 14:18:38 by macelik          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */

#include "libft.h"

char	*ft_strnstr(const char *haystack, const char *needle, size_t len)
{
	size_t	i;
	size_t	j;
	char	*result;

	result = (char *)haystack;
	if (!*needle)
		return (result);
	i = 0;
	while (i < len && result[i])
	{
		j = 0;
		while (result[i + j] == needle[j] && i + j < len)
		{
			if (needle[j + 1] == '\0')
				return (&result[i]);
			j++;
		}
		i++;
	}
	return (0);
}